Some standard content:
1ICS 71.100. 60
National Standard of the People's Republic of China
GB15892-—2003
Water treatment chemical--Poly aluminium chloride2003-06-13 Issued
People's Republic of China
General Administration of Quality Supervision, Inspection and Quarantine
2003-12-01 Implementation
B15892-2003
In Table 1 of this standard, the indicators of Class I products are mandatory, the indicators of Class II products and other provisions are recommended. The standard is non-equivalent to the Japanese industrial standard JIS K14751596 Water Supply Application Case Chemical> and the American Water Science Association standard ANST/AWWA10519934 Micro-body Case Alumina 3 Series G15892-1\95 Water Treatment Division Qi Joint Model Chemical Decoration 3 The main differences between this standard and ISK1475-995 and ANS1/AWW4B4(81993 are as follows: This standard also refers to liquid polyurethane fertilizer and recycled plasticizer: According to the progress of polyurethane technology, the production process and raw material sources of my country's plasticizer industry have increased the technical indicators of basicity. The inspection methods for heavy metal indicators have changed. The main differences between this standard and G15992-10 are as follows: The method for determining the quality of the product has been increased (except for A, which has reduced the total metal content index). It includes two indicators, Mn and Mg, and an appendix proposed by scholars is attached. This standard is based on the actual situation. From, the network time to find G3158921995.
This international standard was proposed by the former State Chemical Industry Bureau. This standard was issued by the National Chemical Standardization Technical Committee Water Treatment Agent Branch. The responsible parties for the establishment of this international standard are: Zhongrun Water 1 Industry Development Technology Development Co., Ltd. Kaicai Pant (Yixing) Purification Co., Ltd., China Academy of Preventive Science and Technology Environmental Health Monitoring Institute, Su Taixin Wang Light 1 Additive! Shenzhen Shuyuan Xuben Equipment Co., Ltd., Shi Hanbai Water Company, Chongqing Chaoxi Chemical Plant, Guanbo Water Agent", Anshan Iron and Steel Water Supply and Drainage Purifier Factory, Chongqing Jianjie Tap Water Material Co., Ltd.,
The main person in charge of this standard is: Li Runsheng, Lu Guoping, Guo Xueli, Haiqi, Huang Hongsong, Tang Xinfen, Lian Rongwei, Jue Jiushun, Zhao Junyan, all,
This standard participated in the drafting of the unit, Nanshi Yuelin Jingshu Co., Ltd. Nanpiao Mining Bureau Chemical Plant, Xinduo Xinshui Water Treatment Co., Ltd., Henan Yishi Yitian Water Purifier Factory, Gongyi Hengyuan Water Purifier Co., Ltd., this standard committee is the National Chemical Standardization Technical Committee Public Water Treatment Agent Branch (5ACT63/55) responsible for the interpretation of this standard first revised release: 194.
1 Fanyuan
National Standard of the People's Republic of China
Water Treatment Agent
Polyamide Aluminum
Water 1reatnent dienical-Poly oluninluni chloridleGB15892—2003
(159—1195
This standard specifies the technical requirements, formulation methods, inspection rules, installation, marking, input and output of water treatment agent chlorination. This product is mainly used for the treatment of drinking water, industrial water and various sewage. The raw material hydrochloric acid used for the treatment of drinking water should adopt industrial synthetic salt. Indicative formula A1, ((>T1)Clen=a)
7 Reference standards
The following standards contain relevant texts and constitute the provisions of this standard through reference in this standard. When this standard was issued, the versions shown were all valid and all standards would be invalid. Parties using this standard should explore the possibility of using the latest versions of the following standards. (:H191-2330 Packaging flow chart mark GB/T 6U1-20U2
Chemical step test standard preparation of the starting
B/TG02-2Gn2 Chemical reagent
Quality measurement practical standard box preparation (MS0353-1198) GB/T6032002 Chemical or full test method preparation of preparations (NE1S6353-1: 332) GH/T 610, 1--038
GB/T 612-_983
G/T G7A—1935
GB/T66821932
3 Product classification
Chemical reagents must be specified as a method (no method) Chemical reagents are measured using a method (triethyl dinitrogen silver method) Chemical product sampling general rules
Analysis laboratory water specifications and test methods (neg5056S6: 937) Polyaluminium oxide is divided into a class,
[Class: drinking water!
Class T industrial water and standard water see
4 Technical requirements
4.1 Appearance
General, colorless or yellow, color
Product: self-color or yellow, root color or tree end. 4 .2 The cumulative chlorination index of water treatment agents should meet the requirements of the table [, approved by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China on June 13, 2003 and implemented on December 1, 2003
Standardized
Positive fraction of loaded (AI)%
Basic /
Eliminating waste (x0t/e/m)
Mass fraction of water-soluble matter/%
Mass fraction of effective chlorination
Mass number of A/
Mass number of F/5
Mass fraction of width (C%)/%
Mass fraction of end (11g)/
Mass fraction of valence (C\>)/%
GB 15892—2003
Superior quality
First quality
Superior quality
First quality
43--99
43--90
.5~ic
3.5~5.D3.5~5.03.5~5.03,5~5,c0.01
0. D05 01
Parts: Yijie chlorine, lead, chlorine, mercury, hexavalent chromium source impurities are measured by mass fraction of 1D.%A. (calculated. The indicators of the middle and lower products are mandatory, and II is the standard. 5 Test methods
The test and water used in this standard, when no other requirements are specified: all refer to the analytical pure reagents specified in CB/683. The standard liquid, quality standard filter preparation and products required in the test, when no other requirements are specified, are prepared according to GBTEC1G5/T602 and GB/T603. Safety tips: The strong aldehydes and strong alkalis used in this standard are corrosive, so be careful when using them. If you get on your body, rinse with plenty of water, 5. 1 Determination of aluminum hydroxide (Al2O3) content
5.1.1 Method
The sample is depolymerized with maleic acid. At pH = 3, disodium ethylenediaminetetraethylene glycol solution is added to complex FTYIA with lead ions. Then, the chain titration is carried out using standard zinc chloride titration.
5.1.2 Reagents and materials
5.1.2. 1 Determination of aluminum hydroxide (Al2O3) content
5. 1. 2. 3
5. 1.2. 4
Rehydration tank solution: 111.
Ethylenediaminetetraacetic acid disodium (ELYTA) disodium ethylenediaminetetraacetic acid (ELYTA) is about 35mol/I. Sodium acetic acid buffer solution (pI=3.5), you take acetic acid (= water>272= dissolved in water: add glacial acetic acid: 3ml. Dilute to 100T.
5.1.2.5 Produce a concentrated solution: 1/L7. Alcohol solution. 5.1.2.6
Dichloroacetic acid scanning indicator solution>g/I
Zinc oxide standard titration solution.. (ZnCl,) about 0.u2nucl/L.5.1.3 Steps
Weigh about 100g of sample or 3.5g of sample, to the extent of ?. Dissolve in water without oxide, transfer to 2 measuring bottles, and sieve to the scale. If the powder is changed to pure, use a paper to read A. Collect 10ml of diluted or filtrate in a tube, add 25ml of nitric acid bottle, add 1ml. Nitric acid bottle: add 1ml of nitric acid bottle: cool to room temperature, add 2U.0mL of disodium oxalate tetraacetate, add 3-4 drops of phenol solution, neutralize with ammonia solution until the test solution changes from red to yellow, evaporate for 2min. After cooling, add 10ml of acetic acid-ethyl ether and 2-1 drops of dimethylformamide as a light indicator, titrate with 2-10% chloride standard solution until the yellow turns to red, which is the end point, and record the blank test at the same time. 5.1.4 Description of analytical results
The chemical (A1) expressed as mass fraction (% is calculated according to formula 1, 20.=(Y/100-V/10)M/2×200
×10/250
is the volume of zinc chloride standard titration solution consumed in the test, mL; where: V---the volume of zinc chloride standard titration solution consumed by the test sample, mL; r--the actual concentration of zinc chloride standard titration solution, 1al/L; m--the mass of the test sample. R
is the mass fraction of zinc oxide, expressed as g/mol (M=101). 5.1.5 The average value of the results of the repeated determinations shall be taken as the standard result. The error of the parallel determination results shall be: not more than 3.2% for the total product and not more than 0.2% for the whole product.
5.2 Determination of base
5.2.1 Method
Add aliphatic acid solution to the sample, titrate with potassium hydroxide, and titrate with standard sodium hydroxide. 5.2.2 Reagents and materials
5.2.2.1 Standard sodium hydroxide solution: about 0.5mDl/L. 5.2.2.2 Standard sodium hydroxide solution: about 0.5mDl/L. 5.2.2.3 Acid indicator solution: 1g/L ethanol solution: 5.2.2.4 Potassium hydroxide solution, 5C/1.
Weigh 500 ml of potassium hydroxide, dilute to 1000 ml with 200 ml of oxygen-free carbon dioxide. Add 2 or 10% of the indicator solution and adjust the solution to red with a salt solution. After the solution is not oxidized, place it in a plastic container. 5.2.3. Transfer the 25C0mt test solution to a 250ml ground-mouth bottle, add 2.1.0 ml of the standard filter, replace the filter with a cold grinder, boil and reflux for 2 minutes to cool to room temperature. Transfer to a cup, add 100 ml of sodium oxide solution, and control with a spoon. Add 5 drops of phenol and indicator solution, and immediately titrate with a standard calcium oxide until the solution turns red, which is the starting point. At the same time, use a steamed water blank test without carbon dioxide.
5.2.4 Expression of analytical method
The basicity (m) expressed as white content ratio is calculated by formula 2): (Ve/1 (ou-V/l con)anf
2i y250_521 3
100 *259
The volume of the standard titration solution of sodium hydroxide consumed by the test sample, L, the concentration of the standard titration solution of sodium hydroxide, m/s: the mass of the sample g
-5.! The mass fraction of aluminum oxide measured by the test, x10m
M—the value of the mass of the aluminum oxide [O-“, expressed as grams per mole (g/mol) (M=16.99) 9.5203
The maximum value of the number of A
A.
5.2.5
(2)
tiB15892—2003
The average value of the results of the parallel determinations is the determination result. The absolute difference is less than 2.0. 5.3 Determination of density
5.3.1 Method
The density is measured by the density meter in the test liquid. 5.3.2 Equipment
5.3.2.1 Density meter: the graduation value is C.01.
5.3.2.2 Constant water bath: the humidity can be 20 1) ℃:. 5.3.7.3 Thermometer: the graduation value is.
5.3.2.44 255L5comT..
5.3.3 Procedure
Pour the liquid sample into the sterile, dry sample tube without bubbles, and place the sample tube in a water bath at the center of (20-1). When the temperature is constant, gently put the density meter into the sample. After the density stabilizes in the formula, the mass spectrometer shall check the surface of the lower edge of the surface (with the corresponding mark on the surface) at 20 o'clock, which is the density of the test piece at 20 o'clock. 5.4 Determination of water-insoluble content
5.4.1 Receiver and equipment
5.4.1.1 Electric constant temperature drying oven: 15~200℃, 5.4.1.2 Brookfield funnel: d=100mm.
5.4.2 New steps
Weigh about 1% of the liquid sample or solid sample, and adjust to 0.00g, put it into a 1000ml beaker, add 590℃, fully mix the sample, and then put it into the Brookfield funnel, filter it at a medium speed and wash it thoroughly (use acid-free silver flotation test), and adjust the filter paper and filter paper to 10%~105F until the temperature reaches 5. 4.3 Expression of analysis results
The water content of impurities expressed as weight fraction w (w) is calculated according to formula (3): Tu
Where:
The mass of the paper and the sample
The sample is the total volume B.
5.4.4 The arithmetic mean of the results of parallel determinations is allowed to be taken. The absolute difference of the results of parallel determinations is not more than 0.03% for commercial samples and not more than 1% for solid samples.
5.5 Determination of pH value
5.5.1 Only for general experimental cases, use the anti-cancer and
5.5.1.1 Acid meter, set to 002H unit. Equipped with other and stop ratio electrodes, meter needs 4 electrodes or wires. 5.5.2 Step 1: Weigh 1.00 ± 0.31 of the sample. Use water to transfer all of it to a 100% volumetric solution. Dilute to the mark. Pour the sample into a beaker, cover it with a fuel stirrer, add the sample to the test solution, and read the pH value on the pH meter. 5.6 Determination of nitrogen (N) content 5.6.1 Method 1: Add an instantaneous dropper to the test solution to form an oxide. Add sodium hypochlorite and 1-chloro-2-nitrogen to the supernatant of the precipitate to form an acid complex. Measure the absorbance at 723 nm to determine the content of nitrogen. 5.6.2 Reagents and materials 5.6.2.1 Hydroxy acid solution: +35. ||5.6.2.2 Carbon-limited sodium carbonate solution: 30g/L,
56.2.3 Sodium hydroxide solution, 1g/L
5.6.2.4 Sodium fluoride solution: 1g/L.
GB158922003
Add (00/:)ml (c is the effective chlorobenzene content) sodium fluoride and 15% sodium hydroxide into water and dilute to 1000ml.5.6.2.5E1A. to emulsify the culture solution,
Weigh 8% ethylenediamine disodium acetate and float it in sodium hydroxide solution (40/L), and dissolve it with sodium hydroxide to 2g 5.B.2.61 Pre-liquid
Take 1.6 No. 1-hydroxyethyl alcohol (15+35%) and dissolve it in ethanol and stir until it reaches 100ml.5.6.2.7 Ammonia standard solution: 0.00ml. Fill the container with 0.1mgN.5.6.2.8 Ammonia standard solution: 1.00mL of 0.005TmRN. Take 50mL of hydrazine standard solution with a pipette and put it into a 100mL container. Dilute it to the mark with ammonia-free water: prepare this solution when you need it.
5.6.3 Preparation of standard solution
Take 0.101ml, 1.00rl., 2.0m..3,00 -nL..1.00 ml., i.00 ml., 6.Gc mL, 7.90mL hydrogen standard. Transfer the concentrated. into a 00mL narrow blood bottle, add about 5mL of nitrogen drop water, add ml of sodium aldehyde drop liquid, 2min later, add [ml.TA. chlorine hydride standard, shake the hook, then add 5rrL1-ban phenol drop liquid in 1min5mim, add water to dilute to the engraved width, let stand at ℃-30℃ for 25mm, and use 11. Salt reduction standard commercial filter C (HCI) about 0.5mDl/I. 2.2.2. Sodium hydroxide standard titration solution. ENOH about 0.5mDl/L 5.2.2.3 Acid indicator solution: 1g/L ethanol solution: 5.2.2.4 Potassium hydroxide solution, 5C/1.
Weigh 500 potassium hydroxide, add 200 oxygen-free carbon dioxide water-soluble elements, dilute to 1000m. Add 2 or indicator and adjust the solution with salt solution to red, stir without any substance in plastic, 5.2.3 Steps
Transfer 25C0mt test solution 4. Place in a 250ml ground bottle, add 2.1.0)Tml. Pad standard filter, replace with grinding and cooling solution, boil and reflux for 2min to cool to room temperature. Transfer to a cup, add 100 ml sodium oxide solution, and control the temperature. Add 5 drops of phenol as indicator solution, and immediately titrate with a standard sodium oxide titrator until the solution turns red, which is the red point. At the same time, use a steamed water blank without carbon dioxide.
5.2.4 Expression of analytical results
Calculate the basicity (m) expressed as white content ratio using formula 2): (Ve/1 (ou-V/l con)anf
2i y250_521 3
100 *259
The volume of the standard titration solution of sodium hydroxide consumed by the test sample, L, the concentration of the standard titration solution of sodium hydroxide, m/s: the mass of the sample g
-5.! The mass fraction of aluminum oxide measured by the test, x10m
M—the value of the mass of the aluminum oxide [O-“, expressed as grams per mole (g/mol) (M=16.99) 9.5203
The maximum value of the number of A
A.
5.2.5
(2)
tiB15892—2003
The average value of the results of the parallel determinations is the determination result. The absolute difference is less than 2.0. 5.3 Determination of density
5.3.1 Method
The density is measured by the density meter in the test liquid. 5.3.2 Equipment
5.3.2.1 Density meter: the graduation value is C.01.
5.3.2.2 Constant water bath: the humidity can be 20 1) ℃:. 5.3.7.3 Thermometer: the graduation value is.
5.3.2.44 255L5comT..
5.3.3 Procedure
Pour the liquid sample into the sterile, dry sample tube without bubbles, and place the sample tube in a water bath at the center of (20-1). When the temperature is constant, gently put the density meter into the sample. After the density stabilizes in the formula, the mass spectrometer shall check the surface of the lower edge of the surface (with the corresponding mark on the surface) at 20 o'clock, which is the density of the test piece at 20 o'clock. 5.4 Determination of water-insoluble content
5.4.1 Receiver and equipment
5.4.1.1 Electric constant temperature drying oven: 15~200℃, 5.4.1.2 Brookfield funnel: d=100mm.
5.4.2 New steps
Weigh about 1% of the liquid sample or solid sample, and adjust to 0.00g, put it into a 1000ml beaker, add 590℃, fully mix the sample, and then put it into the Brookfield funnel, filter it at a medium speed and wash it thoroughly (use acid-free silver flotation test), and adjust the filter paper and filter paper to 10%~105F until the temperature reaches 5. 4.3 Expression of analysis results
The water content of impurities expressed as weight fraction w (w) is calculated according to formula (3): Tu
Where:
The mass of the paper and the sample
The sample is the total volume B.
5.4.4 The arithmetic mean of the results of parallel determinations is allowed to be taken. The absolute difference of the results of parallel determinations is not more than 0.03% for commercial samples and not more than 1% for solid samples.
5.5 Determination of pH value
5.5.1 Only for general experimental cases, use the anti-cancer and
5.5.1.1 Acid meter, set to 002H unit. Equipped with other and stop ratio electrodes, meter needs 4 electrodes or wires. 5.5.2 Step 1: Weigh 1.00 ± 0.31 of the sample. Use water to transfer all of it to a 100% volumetric solution. Dilute to the mark. Pour the sample into a beaker, cover it with a fuel stirrer, add the sample to the test solution, and read the pH value on the pH meter. 5.6 Determination of nitrogen (N) content 5.6.1 Method 1: Add an instantaneous dropper to the test solution to form an oxide. Add sodium hypochlorite and 1-chloro-2-nitrogen to the supernatant of the precipitate to form an acid complex. Measure the absorbance at 723 nm to determine the content of nitrogen. 5.6.2 Reagents and materials 5.6.2.1 Hydroxy acid solution: +35. ||5.6.2.2 Carbon-limited sodium carbonate solution: 30g/L,
56.2.3 Sodium hydroxide solution, 1g/L
5.6.2.4 Sodium fluoride solution: 1g/L.
GB158922003wwW.bzxz.Net
Add (00/:)ml (c is the effective chlorobenzene content) sodium fluoride and 15% sodium hydroxide into water and dilute to 1000ml.5.6.2.5E1A. to emulsify the culture solution,
Weigh 8% ethylenediamine disodium acetate and float it in sodium hydroxide solution (40/L), and dissolve it with sodium hydroxide to 2g 5.B.2.61 Pre-liquid
Take 1.6 No. 1-hydroxyethyl alcohol (15+35%) and dissolve it in ethanol and stir until it reaches 100ml.5.6.2.7 Ammonia standard solution: 0.00ml. Fill the container with 0.1mgN.5.6.2.8 Ammonia standard solution: 1.00mL of 0.005TmRN. Take 50mL of hydrazine standard solution with a pipette and put it into a 100mL container. Dilute it to the mark with ammonia-free water: prepare this solution when you need it.
5.6.3 Preparation of standard solution
Take 0.101ml, 1.00rl., 2.0m..3,00 -nL..1.00 ml., i.00 ml., 6.Gc mL, 7.90mL hydrogen standard. Transfer the concentrated. into a 00mL narrow blood bottle, add about 5mL of nitrogen drop water, add ml of sodium aldehyde drop liquid, 2min later, add [ml.TA. chlorine hydride standard, shake the hook, then add 5rrL1-ban phenol drop liquid in 1min5mim, add water to dilute to the engraved width, let stand at ℃-30℃ for 25mm, and use 11. Salt reduction standard commercial filter C (HCI) about 0.5mDl/I. 2.2.2. Sodium hydroxide standard titration solution. ENOH about 0.5mDl/L 5.2.2.3 Acid indicator solution: 1g/L ethanol solution: 5.2.2.4 Potassium hydroxide solution, 5C/1.
Weigh 500 potassium hydroxide, add 200 oxygen-free carbon dioxide water-soluble elements, dilute to 1000m. Add 2 or indicator and adjust the solution with salt solution to red, stir without any substance in plastic, 5.2.3 Steps
Transfer 25C0mt test solution 4. Place in a 250ml ground bottle, add 2.1.0)Tml. Pad standard filter, replace with grinding and cooling solution, boil and reflux for 2min to cool to room temperature. Transfer to a cup, add 100 ml sodium oxide solution, and control the temperature. Add 5 drops of phenol as indicator solution, and immediately titrate with a standard sodium oxide titrator until the solution turns red, which is the red point. At the same time, use a steamed water blank without carbon dioxide.
5.2.4 Expression of analytical results
Calculate the basicity (m) expressed as white content ratio using formula 2): (Ve/1 (ou-V/l con)anf
2i y250_521 3
100 *259
The volume of the standard titration solution of sodium hydroxide consumed by the test sample, L, the concentration of the standard titration solution of sodium hydroxide, m/s: the mass of the sample g
-5.! The mass fraction of aluminum oxide measured by the test, x10m
M—the value of the mass of the aluminum oxide [O-“, expressed as grams per mole (g/mol) (M=16.99) 9.5203
The maximum value of the number of A
A.
5.2.5
(2)
tiB15892—2003
The average value of the results of the parallel determinations is the determination result. The absolute difference is less than 2.0. 5.3 Determination of density
5.3.1 Method
The density is measured by the density meter in the test liquid. 5.3.2 Equipment
5.3.2.1 Density meter: the graduation value is C.01.
5.3.2.2 Constant water bath: the humidity can be 20 1) ℃:. 5.3.7.3 Thermometer: the graduation value is.
5.3.2.44 255L5comT..
5.3.3 Procedure
Pour the liquid sample into the sterile, dry sample tube without bubbles, and place the sample tube in a water bath at the center of (20-1). When the temperature is constant, gently put the density meter into the sample. After the density stabilizes in the formula, the mass spectrometer shall check the surface of the lower edge of the surface (with the corresponding mark on the surface) at 20 o'clock, which is the density of the test piece at 20 o'clock. 5.4 Determination of water-insoluble content
5.4.1 Receiver and equipment
5.4.1.1 Electric constant temperature drying oven: 15~200℃, 5.4.1.2 Brookfield funnel: d=100mm.
5.4.2 New steps
Weigh about 1% of the liquid sample or solid sample, and adjust to 0.00g, put it into a 1000ml beaker, add 590℃, fully mix the sample, and then put it into the Brookfield funnel, filter it at a medium speed and wash it thoroughly (use acid-free silver flotation test), and adjust the filter paper and filter paper to 10%~105F until the temperature reaches 5. 4.3 Expression of analysis results
The water content of impurities expressed as weight fraction w (w) is calculated according to formula (3): Tu
Where:
The mass of the paper and the sample
The sample is the total volume B.
5.4.4 The arithmetic mean of the results of parallel determinations is allowed to be taken. The absolute difference of the results of parallel determinations is not more than 0.03% for commercial samples and not more than 1% for solid samples.
5.5 Determination of pH value
5.5.1 Only for general experimental cases, use the anti-cancer and
5.5.1.1 Acid meter, set to 002H unit. Equipped with other and stop ratio electrodes, meter needs 4 electrodes or wires. 5.5.2 Step 1: Weigh 1.00 ± 0.31 of the sample. Use water to transfer all of it to a 100% volumetric solution. Dilute to the mark. Pour the sample into a beaker, cover it with a fuel stirrer, add the sample to the test solution, and read the pH value on the pH meter. 5.6 Determination of nitrogen (N) content 5.6.1 Method 1: Add an instantaneous dropper to the test solution to form an oxide. Add sodium hypochlorite and 1-chloro-2-nitrogen to the supernatant of the precipitate to form an acid complex. Measure the absorbance at 723 nm to determine the content of nitrogen. 5.6.2 Reagents and materials 5.6.2.1 Hydroxy acid solution: +35. ||5.6.2.2 Carbon-limited sodium carbonate solution: 30g/L,
56.2.3 Sodium hydroxide solution, 1g/L
5.6.2.4 Sodium fluoride solution: 1g/L.
GB158922003
Add (00/:)ml (c is the effective chlorobenzene content) sodium fluoride and 15% sodium hydroxide into water and dilute to 1000ml.5.6.2.5E1A. to emulsify the culture solution,
Weigh 8% ethylenediamine disodium acetate and float it in sodium hydroxide solution (40/L), and dissolve it with sodium hydroxide to 2g 5.B.2.61 Pre-liquid
Take 1.6 No. 1-hydroxyethyl alcohol (15+35%) and dissolve it in ethanol and stir until it reaches 100ml.5.6.2.7 Ammonia standard solution: 0.00ml. Fill the container with 0.1mgN.5.6.2.8 Ammonia standard solution: 1.00mL of 0.005TmRN. Take 50mL of hydrazine standard solution with a pipette and put it into a 100mL container. Dilute it to the mark with ammonia-free water: prepare this solution when you need it.
5.6.3 Preparation of standard solution
Take 0.101ml, 1.00rl., 2.0m..3,00 -nL..1.00 ml., i.00 ml., 6.Gc mL, 7.90mL hydrogen standard. Transfer the concentrated. into a 00mL narrow blood bottle, add about 5mL of nitrogen drop water, add ml of sodium aldehyde drop liquid, 2min later, add [ml.TA. chlorine hydride standard, shake the hook, then add 5rrL1-ban phenol drop liquid in 1min5mim, add water to dilute to the engraved width, let stand at ℃-30℃ for 25mm, and use 15.3 Density determination 5.3.1 Method and procedure 5.3.2 Densitometer: The graduation value is C.01. 5.3.2.2 Constant water bath: Humidity 20℃: 1.5.3.7.3 Thermometer: The graduation value is C.01.
5.3.2.44 商255L5comT..
5.3.3 执行办法
Pour the liquid-contained aluminum sample into the sterile container. There should be no bubbles in the container. Place the container in a water bath at the center of (20-1). When the temperature is constant, slowly place the density meter into the sample. After the density stabilizes in the formula, check the mark on the lower edge of the surface of the density meter (with the corresponding mark on the surface), which is the density of the sample at 20 o'clock. 5.4 Determination of water-insoluble matter content
5.4.1 收料器、設備
5.4.1.1 Electric constant temperature drying oven: 15~200℃, 5.4.1.2 Brinell full bucket: d=100mm.
5.4.2 New steps
Weigh about 1% of the liquid sample or solid sample and adjust to 0.00g. Pour it into a 1000ml beaker and add 590ml of water. Mix the sample thoroughly and then filter it through a medium-speed fixed-filter with suction in a 4% filtration machine (use silver flotation test). Mix the filter paper and the filter paper together with the filter paper and adjust the water content w (wt%) to 10%~105% to a constant temperature. 5.4.3 Expression of analytical results
Calculate the water content w (wt%) as shown in the formula (3): Tu
Where:
The mass of the filter paper and the sample is the mass of the sample·B. 5.4.4 The arithmetic mean of the results of parallel determinations shall be taken as the standard. The absolute difference of the results of parallel determinations shall not be greater than 0.03% for the sample and not greater than 1% for the sample. 5.5 Determination of pH value 5.5.1 Only for general experimental cases, use the instrument with 0.02H unit. Equipped with 4 electrodes or filaments per meter. 5.5.2 Weigh 1.00 ± 0.31 of the sample. Use water as the source and transfer all of it to 1 (n) volumetric volume. Dilute to the scale and list the results. Pour the sample into a beaker, cover it with a fuel stirrer, add an electric current into the test liquid, select it, read the pH value on the pH meter,
5.6 Determination of nitrogen (N) content
5.6.1 Method
Add an instantaneous dropper into the test liquid to make A form an oxide, add sodium hypochlorite and 1-chloro-2-nitrogen into the supernatant of the precipitate to form an acid-free complex, and measure the absorbance at 723 nm to obtain the content of nitrogen.4
5.6.2 Reagents and materials
5.6.2.1 Sulfate solution: +35. ||5.6.2.2 Carbon-limited sodium carbonate solution: 30g/L,
56.2.3 Sodium hydroxide solution, 1g/L
5.6.2.4 Sodium fluoride solution: 1g/L.
GB158922003
Add (00/:)ml (c is the effective chlorobenzene content) sodium fluoride and 15% sodium hydroxide into water and dilute to 1000ml.5.6.2.5E1A. to emulsify the culture solution,
Weigh 8% ethylenediamine disodium acetate and float it in sodium hydroxide solution (40/L), and dissolve it with sodium hydroxide to 2g 5.B.2.61 Pre-liquid
Take 1.6 No. 1-hydroxyethyl alcohol (15+35%) and dissolve it in ethanol and stir until it reaches 100ml.5.6.2.7 Ammonia standard solution: 0.00ml. Fill the container with 0.1mgN.5.6.2.8 Ammonia standard solution: 1.00mL of 0.005TmRN. Take 50mL of hydrazine standard solution with a pipette and put it into a 100mL container. Dilute it to the mark with ammonia-free water: prepare this solution when you need it.
5.6.3 Preparation of standard solution
Take 0.101ml, 1.00rl., 2.0m..3,00 -nL..1.00 ml., i.00 ml., 6.Gc mL, 7.90mL hydrogen standard. Transfer the concentrated. into a 00mL narrow blood bottle, add about 5mL of nitrogen drop water, add ml of sodium aldehyde drop liquid, 2min later, add [ml.TA. chlorine hydride standard, shake the hook, then add 5rrL1-ban phenol drop liquid in 1min5mim, add water to dilute to the engraved width, let stand at ℃-30℃ for 25mm, and use 15.3 Density determination 5.3.1 Method and procedure 5.3.2 Densitometer: The graduation value is C.01. 5.3.2.2 Constant water bath: Humidity 20℃: 1.5.3.7.3 Thermometer: The graduation value is C.01.
5.3.2.44 商255L5comT..
5.3.3 执行办法
Pour the liquid-contained aluminum sample into the sterile container. There should be no bubbles in the container. Place the container in a water bath at the center of (20-1). When the temperature is constant, slowly place the density meter into the sample. After the density stabilizes in the formula, check the mark on the lower edge of the surface of the density meter (with the corresponding mark on the surface), which is the density of the sample at 20 o'clock. 5.4 Determination of water-insoluble matter content
5.4.1 收料器、設備
5.4.1.1 Electric constant temperature drying oven: 15~200℃, 5.4.1.2 Brinell full bucket: d=100mm.
5.4.2 New steps
Weigh about 1% of the liquid sample or solid sample and adjust to 0.00g. Pour it into a 1000ml beaker and add 590ml of water. Mix the sample thoroughly and then filter it through a medium-speed fixed-filter with suction in a 4% filtration machine (use silver flotation test). Mix the filter paper and the filter paper together with the filter paper and adjust the water content w (wt%) to 10%~105% to a constant temperature. 5.4.3 Expression of analytical results
Calculate the water content w (wt%) as shown in the formula (3): Tu
Where:
The mass of the filter paper and the sample is the mass of the sample·B. 5.4.4 The arithmetic mean of the results of parallel determinations shall be taken as the standard. The absolute difference of the results of parallel determinations shall not be greater than 0.03% for the sample and not greater than 1% for the sample. 5.5 Determination of pH value 5.5.1 Only for general experimental cases, use the instrument with 0.02H unit. Equipped with 4 electrodes or filaments per meter. 5.5.2 Weigh 1.00 ± 0.31 of the sample. Use water as the source and transfer all of it to 1 (n) volumetric volume. Dilute to the scale and list the results. Pour the sample into a beaker, cover it with a fuel stirrer, add an electric current into the test liquid, select it, read the pH value on the pH meter,
5.6 Determination of nitrogen (N) content
5.6.1 Method
Add an instantaneous dropper into the test liquid to make A form an oxide, add sodium hypochlorite and 1-chloro-2-nitrogen into the supernatant of the precipitate to form an acid-free complex, and measure the absorbance at 723 nm to obtain the content of nitrogen.4
5.6.2 Reagents and materials
5.6.2.1 Sulfate solution: +35. ||5.6.2.2 Carbon-limited sodium carbonate solution: 30g/L,
56.2.3 Sodium hydroxide solution, 1g/L
5.6.2.4 Sodium fluoride solution: 1g/L.
GB158922003
Add (00/:)ml (c is the effective chlorobenzene content) sodium fluoride and 15% sodium hydroxide into water and dilute to 1000ml.5.6.2.5E1A. to emulsify the culture solution,
Weigh 8% ethylenediamine disodium acetate and float it in sodium hydroxide solution (40/L), and dissolve it with sodium hydroxide to 2g 5.B.2.61 Pre-liquid
Take 1.6 No. 1-hydroxyethyl alcohol (15+35%) and dissolve it in ethanol and stir until it reaches 100ml.5.6.2.7 Ammonia standard solution: 0.00ml. Fill the container with 0.1mgN.5.6.2.8 Ammonia standard solution: 1.00mL of 0.005TmRN. Take 50mL of hydrazine standard solution with a pipette and put it into a 100mL container. Dilute it to the mark with ammonia-free water: prepare this solution when you need it.
5.6.3 Preparation of standard solution
Take 0.101ml, 1.00rl., 2.0m..3,00 -nL..1.00 ml., i.00 ml., 6.Gc mL, 7.90mL hydrogen standard. Transfer the concentrated. into a 00mL narrow blood bottle, add about 5mL of nitrogen drop water, add ml of sodium aldehyde drop liquid, 2min later, add [ml.TA. chlorine hydride standard, shake the hook, then add 5rrL1-ban phenol drop liquid in 1min5mim, add water to dilute to the engraved width, let stand at ℃-30℃ for 25mm, and use 16 No. 1-200 ml of ethanol (150 g/cm2) was dissolved in acetonitrile and incubated with 100 ml of ethanol. 5.6.2.7 Ammonia standard solution: 0.1 mg N was added to each solution. 5.6.2.8 Ammonia standard solution: 1.00 ml of 0.005 TmRN was added. 50 ml of hydrazine standard solution was transferred into a 10 mL container. Diluted to the mark with ammonia-free water: this solution was prepared when needed.
5.6.3 Preparation of standard solution
0.1 ml, 1.00 ml, 2.0 m., 3.00 -nL., 1.00 ml, 1.00 ml, 6.Gc were transferred respectively. Transfer the concentrated blood into a 100mL blood bottle, add about 5mL of sodium hygrometer, add 1mL of sodium hydride and add 5mL of TA. Add 1mL of sodium hydride and shake well within 1min5min, add 5mL of sodium hydride and add 1mL of TA. Dilute with water to the mark, let stand at 30℃ for 25mm, and use 1mL of sodium hydride.6 No. 1-200 ml of ethanol (150 g/cm2) was dissolved in acetonitrile and incubated with 100 ml of ethanol. 5.6.2.7 Ammonia standard solution: 0.1 mg N was added to each solution. 5.6.2.8 Ammonia standard solution: 1.00 ml of 0.005 TmRN was added. 50 ml of hydrazine standard solution was transferred into a 10 mL container. Diluted to the mark with ammonia-free water: this solution was prepared when needed.
5.6.3 Preparation of standard solution
0.1 ml, 1.00 ml, 2.0 m., 3.00 -nL., 1.00 ml, 1.00 ml, 6.Gc were transferred respectively. Transfer the concentrated blood into a 100mL blood bottle, add about 5mL of sodium hygrometer, add 1mL of sodium hydride and add 5mL of TA. Add 1mL of sodium hydride and shake well within 1min5min, add 5mL of sodium hydride and add 1mL of TA. Dilute with water to the mark, let stand at 30℃ for 25mm, and use 1mL of sodium hydride.In 6 dried bottles, add CmE1, 00 ml, 2, 0 CmE, 1, 2 ml, 1, 2 ml, 3 ml, 1 ml, 2 ml of water to make the temperature drop to 30 °C. Add 4 ml of acid, 2 ml of molten salt and 2 ml of oxidizing hydrochloric acid to each bottle before drying. Let the reaction proceed for 2 minutes. Then add 5 ml of acetic acid to each bottle and add 1 ml of 1, 2 ... ) Take the amount of the mixture (mg) as the coordinate and the corresponding light intensity as the ordinate, and draw the mark. 5. 7. 1. 4. 2 Determination
Take about 1g of the full truck sample or 3. solid sample, and place it in a 1.5-well plate, add 1.5% sulfuric acid, and evaporate it on a boiling water line until it is almost 30°C: cool, dissolve it with hot water (if there is any unqualified matter, it should be removed). Weigh it into a 100ml container or bottle, dilute it with water to the specified concentration (the ratio of the test solution to the test solution is 100ml): transfer 10.5% of the test solution to the plate, add 2mL of water. Draw the whole according to the steps in the shallow plot, and measure the absorbance width.
5.7.1.5 Notes on analytical results
The sum of the results expressed as quantity is the basis for the analysis, ME in TR
the quality of the sample. 8.
5.7.1.6 Tolerance
GB 15892—2003
The arithmetic mean of the parallel determination results is taken as the determination result. The range of the parallel determination results is not large. 5.7.2 Gradient method
5.7.2.1 Summary of the method
In the spleen perfusion fluid, potassium hydroxide and arsenic are used to reduce As (> to As), and an equivalent reaction is added to produce new oxygen. A (II) is further reduced to hydrogen hydride. When the gas in the chamber reacts with the mercuric test paper, some internal hydrogen compounds are produced, which can be measured by the colorimetric method
5.7.2.2 Reagents and materials
5.7.2.2.1 Salt,
5.7.2.2.2 Potassium hydroxide,
5. 7. 2. 2. 3
5. 7. 2. 2. 4
5,7.2.2.5
5. 7.2.2.6
5. 7.2.2.7
5. 7.2. 2.8
5. 7.2.2.9
Formaldehyde release: 111.
Pb solution: 400/L
Hydroxide solution: 100E/1.
No granules.
Ethyl lead oxide
Ethyl lead oxide test fiber
Standard solution: 1ml.Content: 1A
5.7.2.2.10 Standard solution: add 0.0μmL of sodium iodide (5.7.1.2.8), 5.7.2.3 Apparatus
General laboratory instruments and
Specifications: GB/TG10.11,13.2 provisions
5.7.2.4 Analysis steps
Pipette 0.OμmL of test solution, add 50mL of sodium iodide standard solution into the container specified in the specification, add 2.5mL of sodium iodide standard solution: dilute to 7.6% hydrochloric acid, shake with water: assemble the apparatus as shown in GB/TG10.1, and incubate at 25~75℃ for 1h~1.5h. Compare the color of the test result to determine the content of EB lead
5.1 Summary
Use an electric thermometer to measure the absorbance at 233.8mm. 5.5.2 Reagents and reagents
5.8.2.1 Liquid: 11.
5.8.2.2 Standard liquid: 1mL containing 1gPb. Take 0.10% lead (mass fraction is more than 99%), heat the liquid until 0.000mL can be dissolved, and add 0.00L of the liquid to the scale after cooling. 5.8.2.3 Lead is difficult to dissolve: 1.ml. Contains 0.cc1 mu. Pipette IU. Standard dead micropipette into 1UUmL volume bottle: UL whistle acid drop, clean water will reach the scale: 5.8.3 Collection group, equipment and general laboratory research equipment and 5.8.3.1 Micro-intake concentration aspiration device with double button 5L50 (L can lack of blood flow or monthly dynamic sampler. 5.8.3.2 Pyrogen absorption device: with electric 1 heat type, can be reverse connection compensation, 5.8.3.3 Heating furnace protection: integrated or high gold. 5.8.3.4 Lead market emergency warning lamp. 5.8.4 Step by step questions GB 15892—2C03
5.8.4.1 Weigh approximately 1) a certain amount of solid or .3 according to the test box. 1K2 is placed in a 25umL beaker with 30ml of water. 10L of acid, cover with a lid for about 1min, cool to room temperature and transfer to a 1000ml container, dilute to the mark: this is the test concentration: for Pb and CA, 6.8.4.2 Pipette 0nml of the test solution into 4 L containers, add 0.00ml, 50ml, 1.L, 1.50mL of the standard concentration in turn, grind to the mark with water, shake and add a trace amount of Put the prepared sample into the heating furnace, dry it, incinerate it, and atomize it. Then measure its photometry at 283.3°: take the lead ionization after adding the standard solution as the mass standard. Take the absorbance of the response as the ordinate, draw a curve, and extend the curve in the opposite direction to intersect it with the standard. The intersection point is the amount of lead in the tested sample. 5.8.5 The expression of the integral
is the ratio of the frequency of the mass distribution to the frequency of the disease () connected with (6) calculation: x10
: ×1050
In the unit: Tm
The mass point in the sample ag:
—the mass of the sample,,
E.5.6 Allowable difference
The arithmetic mean of the parallel measurement results shall be taken as the determined result. The absolute difference of the single measurement results shall not exceed (.62). 5.9 Determination of cadmium content
5.9.1 Electrothermal absorption light amplification method shall be used. The absorbance shall be determined at 225.3nm on the plate and the content of cadmium shall be calculated. 5.9.2 Reagents and materials
5.9.2.1 Nitric acid solution; 1-1
5.9.2.2 Labeling: 1ml. Contains 0.1t. ..)
0.100 Metal pin (the concentration of metal pin is above 33.9%) is concentrated to 2.0002g and placed in a 1m01 cup. Add 20mL of nicotine to dissolve slightly. Heat to drive off nitrogen hydride. After cooling, transfer to a 1Co volumetric flask and add water until it becomes dense. 5.9.2.3 Standard coke concentrate: 1mL containing u.occ-mgCd. Transfer 10.0)ml standard solution into a 100ml volumetric bottle, add 20mL of nicotine to dissolve, dilute with clean water to the scale mark: then collect 10.00L flow rate and roll in a 30mL container or bottle, add 2mT nitric acid, dilute with sieved water until it changes, and broadcast. This rate is determined by the use of fertilizer
5.9,3 Instruments and equipment
General laboratory instruments and
5.9.3.1 Micro-fluid counter flow device: equipped with a button-type 5μL--500=L micro-volume flow meter or a dynamic narrow, 5.9.3.2 Electric heating source absorption analyzer, with concave heating type, called forward compensation 5.9.3.3 Heating furnace, not made of high temperature resistant gold. 5.9.3.4 Hollow negative alarm lamp.
5.9.4 Analysis steps
Respectively transfer 5.0L test C, stomach ten 53ral. volume, and add C.00L.0.5m, 1.0L1.55mT pot marked liquid. Dilute with water to the scale. The prepared sample juice is heated in the inlet, dried, fully atomized, and its absorbance is measured at 228 nm. The absorbance of the solution is taken as the coordinate + the curve is drawn, and the curve is extended to intersect with the drawing mark, and the intersection point is taken as the measurement result. 5.9.5 The content of sawdust expressed as the quantitative efficiency number of the analytical result shall be calculated according to the formula [?1]: X
wherein: the mass of the test sample, m—the mass of the test sample·R
5.9.6 Permissible difference
G15892—2003
The results of parallel determinations are taken as the determination station for calculation. The absolute difference of the results of parallel determinations shall not exceed 0.5.10 Determination of mercury content
5.10.1 Spectrophotometer method
5.70.1.1 gram method
Oxidize the potassium hydroxide in the test film into ": ... 1. 2. 5
5. 10., 1.2.6
5. 10. 1. 2.7
5. 1c. 1. 2. 8
Confirm.
Acetic acid masking 1-2,
Nitrogen water screen solution: 1-2:
Oxygen water solution
Chlorine washing solution: Take 1mL of nitrogen water and dilute it to 100mL. EDTA concentration>mL potassium manganate
5. 1G. 1.2. 9
Yiliang stock solution: 2CC:L
Take hydrochloric acid and add it to water for 30s, and dilute it to 10CmE. Pour the solution into 20Cml. Divide the solution into a full bucket, add dithiocarbamide concentrated solution. 11. After shaking, let it stand, discard the tetrahydrocannabinol layer, and continue this operation until the color of the solution becomes a solid green.
5.10.1.2.10 Liquid: 200/L. Weigh 20g of the fruit juice and add it to water, and dilute it to 10CmE. Pour the solution into 30ml. Divide it into a full bucket, add dithiocarbamide concentrated solution 1Gm. After shaking, let it stand, discard the tetrahydrocannabinol layer: This operation: continue until the color of the solution becomes a solid green.
5.10.1.2.10 Liquid: 200/L. Weigh 20g of the fruit juice and add it to water, and dilute it to 10CmE. Pour the solution into 30ml. Divide it into a full bucket, add dithiocarbamide concentrated solution 1Gm. After shaking, let it stand, discard the tetrahydrocannabinol layer: |tt||5.10.1.2.11 Disodium ethylenediaminetetraacetate isocyanate: 38g/L Weigh 3.8 mL of disodium tetraacetate (dihydrate) in water, add 10 mL of carbon tetrachloride, let stand, and discard the carbon tetrachloride layer. Repeat this process until the color of the solution changes to green.
5.10.1.2.12 Prepare tetrachloride. Add about 5% sulfur to the fluorine-containing medium, mix well, and discard the mixture until the color is above 400%. Wash with water after combustion: add carbon tetrachloride with calcium oxide and shake gently, and heat for 77℃ for 30 minutes.
5. 10.1.2.13
3 Dithiocarbamide solution: 0.1g/L. Mix well (microcarbazine) and grind into fine powder, take 100% refined oxidized solution, stir for a while. Let stand for 211. The above steps make the dithiocarbamide completely dissolved, 5.10.1.2.14 Dithiocarbamide refining stage solution: 5.05g/L Take 10.00% of the prepared solution of tetrachloride in fuel oil at 20℃ and store in a bottle. Add prepared carbon tetrachloride until the solution is full: 5.10.1.2.15 Make the solution full: 3.05g. Transfer the molten solution of tetrachloride to a 5(L) container and purify carbon tetrachloride until the solution reaches 3.05g. 5.10.1.2.16 Red ethanol lower armpit: 1R/T. Your C.. pants 20:97 stop release into 100L
GH15892—2003
5.10.1.2.17 Standard preparation solution: 1ml of group solution contains 0.1mgIg5.10.1.2.18 Standard preparation solution: 1mL of group solution contains 0.001mgIg. Take the standard preparation solution = 0.CCmL and put it into 100mL bottle and dilute to the scale. Add 10.mL of this liquid element into a 193mL container, dilute to the mark, and drop it into the bottle. 5.10.1.3 Instruments and equipment
5.10.1.3.1 Separating funnel: 50ml..1o0ml..1oocml5. 10. 1.3.2 Cooling device, 1 300% l. Recovery rate, your cold chain pipe is more than 35m1, 5.10.1.3.3 Glass = 2mm~4mm
5.10.1. 3.4 Spectrophotometer.
5.10.1.4 Steps
(1) Weigh the reduced volume sample of about 35K, the volume sample of about 8,3,11, accurately, put it into the bottle of the stream cooling device, add 30ml of aqueous solution, 30ml of nitric acid and 1ml of permanganate, gently remove the hook, put in the glass beads, install the stream condenser, heat it and energize it for 1 h.
(2) If the color of permanganate disappears during the boiling process, stop heating and wait until the temperature drops to potassium permanganate. Continue boiling and repeat this operation until the color of potassium permanganate remains unchanged for more than 1 cm2. (3) After boiling for 1 minute, cool to about 1 CC, remove the granules and drip ethanol until the color of permanganate disappears. Add a few drops of phenol red in ethanol and cool to a low temperature until the color turns red. Add 15 mL of ethanol and 5 mL of urea. Transfer to a 50 mL micro jar and add disulfide and carbon tetrachloride. Add 20 mL of the solution. Place the tablet. Transfer the carbon tetrachloride layer into the 30mL/min book
(5) Add two 20mL slow-flow carbon tetrachloride to the layer, and then add 20mL of carbon tetrachloride to the layer. After 2m., merge the carbon tetrachloride layer with the 4-carbon layer that has just been separated, and add 6-water layer. [6] 20mL of carbon tetrachloride water, use 3Cs to wash the 4-carbon tetrachloride layer, and then wait for the 4-carbon tetrachloride layer to transfer to another 100mL/min., discard the water layer, and add acid to the 4-carbon tetrachloride layer. After 100mL/min, discard the water layer. (? Add salt to the 4-carbon layer and wash it with 5mL of concentrated blood.) Discard the carbon tetrachloride layer, and the water layer will be washed with water before the depth,||t (9) Dilute the sample with water, add 1.5 ml of amino acid solution, 1 ml of acetic acid, 1-1 ml of FA and 2 ml of oxygen. (1) Add a small drop of ammonia solution to the test paper with 1% chlorinated H. Adjust the concentration to 4.8-5.5 (if the concentration exceeds 5.5, the whole method is invalid). Add fluorinated solution and shake vigorously for 2 minutes. After standing, add 1 ml of chlorinated solution and divide into funnel. (11) Add carbon tetroxide layer to the sediment and pipette out the water layer or drip it out. If the test result is positive, it is positive. (12) Add carbon tetroxide to 1 cm and measure the absorption at 49m. (13) Draw the standard curve: Pipette 1.00mL-15.0crl of the liquid into a 100ml separatory bucket. Dilute 15mL of hot water to about 60ml, add 0.ml of acetic acid and 2ml of water (1X1A). Then perform the same dyeing according to (1C)-1) with water content as the model coordinate and absorbance as the coordinate, prepare a standard curve and do a blank test at the same time. 5.10.1.5 Expression of analytical results: Change the content of the final product to the fraction expressed as the pressure (calculated according to (3): 1GAfter shaking, let it stand, discard the tetrahydrofuran layer, and continue this operation until the color of the solution becomes a solid green.
5.10.1.2.10 Liquid: 200/L. Weigh 20g of the fruit juice and dissolve it in water, and add 10ml of the solution. Pour it into a vortex funnel, add 1gm of concentrated sodium disulfide solution. After stirring, let it stand and discard the carbon tetrachloride layer: This operation: Continue until the color of the solution becomes a solid green:
5.10.1.2.11 Disodium ethylenediaminetetraacetate (3.8g/L dihydrate salt) in water, add 13ml of dihydrate solution. Transfer it into a 0ml funnel, add 10gm of concentrated carbon tetrachloride solution. After stirring, let it stand and discard the carbon tetrachloride layer. Repeat this process until the color of the solution changes to green.
5.10.1.2.12 Prepare tetrachloroethylene: add about 5% sulfur to the fluorine medium, mix until the mixture is light yellow. Wash after burning: add carbon tetrachloride with calcium oxide and stir gently, and heat at 77℃ for 30 minutes.
5. 10. 1. 2. 13
3 Prepare carbon tetrachloride solution: 0.1g/L. Combined efficiency Chen (a microcarbazine) is put into fine powder, take 100, 10% refined oxidized solution, stir for a while. Let stand for 211. The above dithiothreitol is completely sieved, 5.10.1.2.14 Dithiothreitol refining stage solution: 5.05g/T Take the waste liquid of tetrachloride from the second batch of Hangzhou Institute and add 10.00% dry carbon dioxide in a 20L bottle until the content is full: 5.10.1.2.15 Dithiothreitol is dissolved to 3.05g. Transfer the molten liquid of dithiothreitol to 1ml. Put it in a 5L container, and purify carbon dioxide to measure. 5.10.1.2.16 Red ethanol reduction armpit: 1R/T. You C.. pants 20: 97 stop and release into 100L
GH15892—2003
5.10.1.2.17 Standard preparation solution: 1ml of sample solution contains 0.1mgIg5.10.1.2.18 Standard preparation solution: 1mL of sample solution contains 0.001mgIg of sample solution Take the standard preparation solution = 0.CCmL and put it into 100mL vial and dilute to the mark. Add 10.mL of this auxiliary solution into 193mL container and dilute to the mark. 5.10.1.3 Instruments and equipment
5.10.1.3.1 Separating funnel: 50ml..1o0ml..1oocml5. 10.1.3.2 Cooling device, 1 300% l. Cooling rate port your cold chain pipe close 35m1 above, 5.10.1.3.3 Glass = 2mm~4mm
5.10.1.3.4 Spectrophotometry.
5.10.1.4 Spectrophotometry steps
(1) Weigh the reduced volume sample about 35K, the national volume test column about 8,3, accurately, 11, put it into the bottle of the stream cooling device, 30ml of water medicine 30ml of nitric acid and 1 liter of permanganate, lightly remove the hook and put in the glass beads. Install the stream cooling tube, heat it, and 1 h.
(2) If the color of permanganate disappears during the boiling process, stop heating and wait until the temperature drops to potassium permanganate. Continue boiling and repeat this operation until the color of potassium permanganate remains unchanged for more than 1 cm min. (3) After boiling for 1 min, cool to about 1 CC, remove the pellets and drip H2O2 into the solution until the color of permanganate disappears. Add a few drops of ethanol containing phenol red and cool to a low temperature until the color turns red. Add 15 mL of ethanol and 5 mL of urea. Transfer to a 50 mL micro jar and add 20 mL of disulfide and carbon tetrachloride. Add 20 mL of the solution. Place the tablet. Transfer the carbon tetrachloride layer into the 30mL/min book
(5) Add two 20mL slow-flow carbon tetrachloride to the layer, and then add 20mL of carbon tetrachloride to the layer. After 2m., merge the carbon tetrachloride layer with the 4-carbon layer that has just been separated, and add 6-water layer. [6] 20mL of carbon tetrachloride water, use 3Cs to wash the 4-carbon tetrachloride layer, and then wait for the 4-carbon tetrachloride layer to transfer to another 100mL/min., discard the water layer, and add acid to the 4-carbon tetrachloride layer. After 100mL/min, discard the water layer. (? Add salt to the 4-carbon layer and wash it with 5mL of concentrated blood.) Discard the carbon tetrachloride layer, and the water layer will be washed with water before the depth,||t (9) Dilute the sample with water, add 1.5 ml of amino acid solution, 1 ml of acetic acid, 1-1 ml of FA and 2 ml of oxygen. (1) Add a small drop of ammonia solution to the test paper with 1% chlorinated H. Adjust the concentration to 4.8-5.5 (if the concentration exceeds 5.5, the whole method is invalid). Add fluorinated solution and shake vigorously for 2 minutes. After standing, add 1 ml of chlorinated solution and divide into funnel. (11) Add carbon tetroxide layer to the sediment and pipette out the water layer or drip it out. If the test result is positive, it is positive. (12) Add carbon tetroxide to 1 cm and measure the absorption at 49m. (13) Draw the standard curve: Pipette 1.00mL-15.0crl of the liquid into a 100ml separatory bucket. Dilute 15mL of hot water to about 60ml, add 0.ml of acetic acid and 2ml of water (1X1A). Then perform the same dyeing according to (1C)-1) with water content as the model coordinate and absorbance as the coordinate, prepare a standard curve and do a blank test at the same time. 5.10.1.5 Expression of analytical results: Change the content of the final product to the fraction expressed as the pressure (calculated according to (3): 1GAfter shaking, let it stand, discard the tetrahydrofuran layer, and continue this operation until the color of the solution becomes a solid green.
5.10.1.2.10 Liquid: 200/L. Weigh 20g of the fruit juice and dissolve it in water, and add 10ml of the solution. Pour it into a vortex funnel, add 1gm of concentrated sodium disulfide solution. After stirring, let it stand and discard the carbon tetrachloride layer: This operation: Continue until the color of the solution becomes a solid green:
5.10.1.2.11 Disodium ethylenediaminetetraacetate (3.8g/L dihydrate salt) in water, add 13ml of dihydrate solution. Transfer it into a 0ml funnel, add 10gm of concentrated carbon tetrachloride solution. After stirring, let it stand and discard the carbon tetrachloride layer. Repeat this process until the color of the solution changes to green.
5.10.1.2.12 Prepare tetrachloroethylene: add about 5% sulfur to the fluorine medium, mix until the mixture is light yellow. Wash after burning: add carbon tetrachloride with calcium oxide and stir gently, and heat at 77℃ for 30 minutes.
5. 10. 1. 2. 13
3 Prepare carbon tetrachloride solution: 0.1g/L. Combined efficiency Chen (a microcarbazine) is put into fine powder, take 100, 10% refined oxidized solution, stir for a while. Let stand for 211. The above dithiothreitol is completely sieved, 5.10.1.2.14 Dithiothreitol refining stage solution: 5.05g/T Take the waste liquid of tetrachloride from the second batch of Hangzhou Institute and add 10.00% dry carbon dioxide in a 20L bottle until the content is full: 5.10.1.2.15 Dithiothreitol is dissolved to 3.05g. Transfer the molten liquid of dithiothreitol to 1ml. Put it in a 5L container, and purify carbon dioxide to measure. 5.10.1.2.16 Red ethanol reduction armpit: 1R/T. You C.. pants 20: 97 stop and release into 100L
GH15892—2003
5.10.1.2.17 Standard preparation solution: 1ml of sample solution contains 0.1mgIg5.10.1.2.18 Standard preparation solution: 1mL of sample solution contains 0.001mgIg of sample solution Take the standard preparation solution = 0.CCmL and put it into 100mL vial and dilute to the mark. Add 10.mL of this auxiliary solution into 193mL container and dilute to the mark. 5.10.1.3 Instruments and equipment
5.10.1.3.1 Separating funnel: 50ml..1o0ml..1oocml5. 10.1.3.2 Cooling device, 1 300% l. Cooling rate port your cold chain pipe close 35m1 above, 5.10.1.3.3 Glass = 2mm~4mm
5.10.1.3.4 Spectrophotometry.
5.10.1.4 Spectrophotometry steps
(1) Weigh the reduced volume sample about 35K, the national volume test column about 8,3, accurately, 11, put it into the bottle of the stream cooling device, 30ml of water medicine 30ml of nitric acid and 1 liter of permanganate, lightly remove the hook and put in the glass beads. Install the stream cooling tube, heat it, and 1 h.
(2) If the color of permanganate disappears during the boiling process, stop heating and wait until the temperature drops to potassium permanganate. Continue boiling and repeat this operation until the color of potassium permanganate remains unchanged for more than 1 cm min. (3) After boiling for 1 min, cool to about 1 CC, remove the pellets and drip H2O2 into the solution until the color of permanganate disappears. Add a few drops of ethanol containing phenol red and cool to a low temperature until the color turns red. Add 15 mL of ethanol and 5 mL of urea. Transfer to a 50 mL micro jar and add 20 mL of disulfide and carbon tetrachloride. Add 20 mL of the solution. Place the tablet. Transfer the carbon tetrachloride layer into the 30mL/min book
(5) Add two 20mL slow-flow carbon tetrachloride to the layer, and then add 20mL of carbon tetrachloride to the layer. After 2m., merge the carbon tetrachloride layer with the 4-carbon layer that has just been separated, and add 6-water layer. [6] 20mL of carbon tetrachloride water, use 3Cs to wash the 4-carbon tetrachloride layer, and then wait for the 4-carbon tetrachloride layer to transfer to another 100mL/min., discard the water layer, and add acid to the 4-carbon tetrachloride layer. After 100mL/min, discard the water layer. (? Add salt to the 4-carbon layer and wash it with 5mL of concentrated blood.) Discard the carbon tetrachloride layer, and the water layer will be washed with water before the depth,||t (9) Dilute the sample with water, add 1.5 ml of amino acid solution, 1 ml of acetic acid, 1-1 ml of FA and 2 ml of oxygen. (1) Add a small drop of ammonia solution to the test paper with 1% chlorinated H. Adjust the concentration to 4.8-5.5 (if the concentration exceeds 5.5, the whole method is invalid). Add fluorinated solution and shake vigorously for 2 minutes. After standing, add 1 ml of chlorinated solution and divide into funnel. (11) Add carbon tetroxide layer to the sediment and pipette out the water layer or drip it out. If the test result is positive, it is positive. (12) Add carbon tetroxide to 1 cm and measure the absorption at 49m. (13) Draw the standard curve: Pipette 1.00mL-15.0crl of the liquid into a 100ml separatory bucket. Dilute 15mL of hot water to about 60ml, add 0.ml of acetic acid and 2ml of water (1X1A). Then perform the same dyeing according to (1C)-1) with water content as the model coordinate and absorbance as the coordinate, prepare a standard curve and do a blank test at the same time. 5.10.1.5 Expression of analytical results: Change the content of the final product to the fraction expressed as the pressure (calculated according to (3): 1GInstall a flow condenser, heat and ignite for 1 h.
(2) If the color of permanganate disappears during the boiling process, stop heating and wait until the temperature drops to 100 °C. Continue boiling and repeat this operation until the color of potassium permanganate remains unchanged for more than 1 cm. (3) After boiling for 1 min, cool to about 1 CC, remove the pellets and drip phenol red into the solution until the color disappears. Add a few drops of ethanol and phenol red. Add water to cool until the color turns red. Add 15 mL of phenol red and 5 mL of urea. Transfer to a 50 mL micro jar and add disulfide and carbon tetrachloride. Add 20 mL of the solution. Place the tablet. Transfer the carbon tetrachloride layer into the 30mL/min book
(5) Add two 20mL slow-flow carbon tetrachloride to the layer, and then add 20mL of carbon tetrachloride to the layer. After 2m., merge the carbon tetrachloride layer with the 4-carbon layer that has just been separated, and add 6-water layer. [6] 20mL of carbon tetrachloride water, use 3Cs to wash the 4-carbon tetrachloride layer, and then wait for the 4-carbon tetrachloride layer to transfer to another 100mL/min., discard the water layer, and add acid to the 4-carbon tetrachloride layer. After 100mL/min, discard the water layer. (? Add salt to the 4-carbon layer and wash it with 5mL of concentrated blood.) Discard the carbon tetrachloride layer, and the water layer will be washed with water before the depth,||t (9) Dilute the sample with water, add 1.5 ml of amino acid solution, 1 ml of acetic acid, 1-1 ml of FA and 2 ml of oxygen. (1) Add a small drop of ammonia solution to the test paper with 1% chlorinated H. Adjust the concentration to 4.8-5.5 (if the concentration exceeds 5.5, the whole method is invalid). Add fluorinated solution and shake vigorously for 2 minutes. After standing, add 1 ml of chlorinated solution and divide into funnel. (11) Add carbon tetroxide layer to the sediment and pipette out the water layer or drip it out. If the test result is positive, it is positive. (12) Add carbon tetroxide to 1 cm and measure the absorption at 49m. (13) Draw the standard curve: Pipette 1.00mL-15.0crl of the liquid into a 100ml separatory bucket. Dilute 15mL of hot water to about 60ml, add 0.ml of acetic acid and 2ml of water (1X1A). Then perform the same dyeing according to (1C)-1) with water content as the model coordinate and absorbance as the coordinate, prepare a standard curve and do a blank test at the same time. 5.10.1.5 Expression of analytical results: Change the content of the final product to the fraction expressed as the pressure (calculated according to (3): 1GInstall a flow condenser, heat and ignite for 1 h.
(2) If the color of permanganate disappears during the boiling process, stop heating and wait until the temperature drops to 100 °C. Continue boiling and repeat this operation until the color of potassium permanganate remains unchanged for more than 1 cm. (3) After boiling for 1 min, cool to about 1 CC, remove the pellets and drip phenol red into the solution until the color disappears. Add a few drops of ethanol and phenol red. Add water to cool until the color turns red. Add 15 mL of phenol red and 5 mL of urea. Transfer to a 50 mL micro jar and add disulfide and carbon tetrachloride. Add 20 mL of the solution. Place the tablet. Transfer the carbon tetrachloride layer into the 30mL/min book
(5) Add two 20mL slow-flow carbon tetrachloride to the layer, and then add 20mL of carbon tetrachloride to the layer. After 2m., merge the carbon tetrachloride layer with the 4-carbon layer that has just been separated, and add 6-water layer. [6] 20mL of carbon tetrachloride water, use 3Cs to wash the 4-carbon tetrachloride layer, and then wait for the 4-carbon tetrachloride layer to transfer to another 100mL/min., discard the water layer, and add acid to the 4-carbon tetrachloride layer. After 100mL/min, discard the water layer. (? Add salt to the 4-carbon layer and wash it with 5mL of concentrated blood.) Discard the carbon tetrachloride layer, and the water layer will be washed with water before the depth,||t (9) Dilute the sample with water, add 1.5 ml of amino acid solution, 1 ml of acetic acid, 1-1 ml of FA and 2 ml of oxygen. (1) Add a small drop of ammonia solution to the test paper with 1% chlorinated H. Adjust the concentration to 4.8-5.5 (if the concentration exceeds 5.5, the whole method is invalid). Add fluorinated solution and shake vigorously for 2 minutes. After standing, add 1 ml of chlorinated solution and divide into funnel. (11) Add carbon tetroxide layer to the sediment and pipette out the water layer or drip it out. If the test result is positive, it is positive. (12) Add carbon tetroxide to 1 cm and measure the absorption at 49m. (13) Draw the standard curve: Pipette 1.00mL-15.0crl of the liquid into a 100ml separatory bucket. Dilute 15mL of hot water to about 60ml, add 0.ml of acetic acid and 2ml of water (1X1A). Then perform the same dyeing according to (1C)-1) with water content as the model coordinate and absorbance as the coordinate, prepare a standard curve and do a blank test at the same time. 5.10.1.5 Expression of analytical results: Change the content of the final product to the fraction expressed as the pressure (calculated according to (3): 1G
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