Some standard content:
TCA 67. 040
National Standard of the People's Republic of China
GB/T5009.7—2003
Determination of redacing sugar in food
foods2003-08-11issued
Ministry of Health of the People's Republic of China
Standardization Administration of the People's Republic of China
Implementation on 2004-01-01
GI/T5009.7—2003
This standard replaces GB/T5009.75 Determination of flow rate in foods3. Compared with GB/T5009.31985, this standard has the following minor changes: The Chinese name of the standard has been modified and the Chinese name has been changed to "Determination of flow rate cone in foods: compiled in accordance with GB21.2—2001 standard".
This standard is issued by the Ministry of Health of the People's Republic of China. Objective: This standard is issued by the Ministry of Health's Product Hygiene Inspection Institute for the first time in 1985. This is the first revision. Part 1: Chemical analysis method. Scope: Determination of reducing sugar in food. This standard specifies the determination method of reducing sugar in food. This standard is applicable to the determination of reducing sugar in food. Method 1: Direct titration method. GB/T 5009.7—2003. After the sample is descaled, the tartaric acid solution is calibrated with the calibrated reducing sugar standard solution under heating conditions, using blue as the indicator. The reducing sugar is calculated based on the sample consumption. 3 Reagents
3.2 Add 1% ethanol to the mixture: weigh 1% ethanol (5% ethanol) and 1% methyl methacrylate, sieve to 10% ethanol.
3.3 Add 1% ethanol to the mixture: add 1% ethanol to make 1% ethanol, add 2% ethanol to make 1% ethanol, add 1% ethanol to make 1% ethanol, and store in a rubber bottle. 3.4 Add 2% ethanol to make 2% ethanol. Add glacial acid to dissolve the ethanol and Release rate 10Cml.3.5 Ferrous chloride concentration: weigh 10.6g ferrous potassium chloride, add water to dissolve and dilute to 5:100ml. 3.E standard solution: add 0000g of freshly crushed pure water, add 5mF hydrochloric acid to dilute to 1cwml. This is equivalent to 1.6g of water. 3.7 Fructose standard solution: follow 3.5 to prepare a standard solution equivalent to 1. 1 mx of sampling. 3.8 Lactose detection strategy: 3.S operation. Prepare each variable standard according to the slope of 1.5m of milk (including requirements): 3. Conversion standard falls accurately, m hydrolysis plate has me add benefit (1+1 in (water potential heat 1n place at room temperature to 1)m each pot liter standard liquid sweep equal to 1. Conversion help.
4 Instrument
4.1 Comparative burette replace 25m.
4.2 Adjustable electric furnace: with asbestos board,
5 Analysis steps
5.1 Sample treatment
Milk, dairy products when cold food fee: take 2. 5u 5. 00 Zhouche test suction 2,0 ml.--n,oml. liquid to the test column), a 230m. rate and medium, 50 rel. technique, slow people Fml. zinc aldehyde drop more and 5 industrial sub-fast image rivet drop concentration, add water to scale, swim near precipitation: static thunder 3Jin, filter with dry filter, year to read the first wave of each H, 5.1.2 Alcoholic beverage: absorb 100,0ml. read sample, subject to three evaporated blood, oxygen oxidation clamp! 11x melting hoop and steal neutral. In water No. 140 years to a quarter of the bed volume after people 250m. volume bottle, water to lake degree. 5.1.3 Food containing a large amount of powder: weigh 10.62e--20.00g sample ten 253taL run plate version household, Can 200mi, this, at 45t
GB/T 5009.7—2003
Heat in a water bath for 1h, and keep it cool. After cooling, add water to the scale, collect, and let it stand for precipitation. Drop 200ml of the sample into another 259ml volumetric bottle, and operate as follows. Add 5L acetic acid solution... 5.1.4 Beverages containing carbon dioxide such as wood: absorb 130.0ml of the sample into the hot water, remove the carbon dioxide in a water bath, and then transfer it to a 250ml volumetric pan, and rinse it with water, wash and fill the bottle, then add water to the scale, and watch it evenly. Use 5.2 to standardize the mechanical tartaric acid preparation.
Absorb 5.0ml of 0.1 reducing acid copper hydroxide and place it in a 150m3 tube. Add 10ml of water. Add 2ml of bead filling, add about 9ml of bacteria or other reducing solution from the titration organ, heat to boiling within 2min, continue to add other crankshaft or other reducing solution at a rate of 1 drop per 2 seconds. From the time the tube is collected and the tube is removed, record the total volume of the reducing solution consumed, and perform the operation in parallel, take the average value and calculate each! 5.3. Stir the pre-filtered copper tartaric acid solution and 5.0ml of tartaric acid solution (5mL each, 5mL of ethyl acetate) and add 10ml of water. Heat at 7...m with a speed that first accelerates and then solidifies. Add the sample from the titration solution and maintain a subcurrent boiling state. When the color of the solution changes to blue, take 1 second as the boiling speed. The sample should not float steadily and accumulate. When the reducing sugar concentration in the sample is too high, the corresponding determination is performed again. Each time, the volume of the sample solution consumed is controlled to be close to the volume of the reducing sugar standard solution consumed when adjusting the concentration with the indicated tartaric acid gel, about 10ml. When the concentration is still too low, the sample solution is directly added, omitting 1ml of water, and the reducing sugar standard is titrated with the reducing sugar standard. The difference between the low product of the elimination cup and the reducing sugar standard during the calibration is recorded. The reducing sugar standard is added with the whole amount of the reducing sugar deficiency in the sample solution, and 5.40ml or 5.1ml of ethanol is added to the test solution and placed in a 1ml flask, and 10l of water is added to the glass ball. When the sample volume is less than the full volume, add the sample into the full flask, stop heating until boiling, continue to add the sample at a rate of 1 drop per 2 seconds. Record the volume consumed by the sample. Repeat the operation three times in the same way to obtain the average volume consumed.
6 Auxiliary calculation
The content of reducing agent in the sample (calculated as reducing agent) is calculated according to formula (1) A
X = in ×V/2%0 x 1 00 ×10m
In:
The content of reducing agent in a test sample (calculated as reducing agent, the unit is gram per gram (/): A-tartrate solution (A, half of the equivalent" reducing agent of the sample, the unit is gram m)-sample mass, the unit is gram)
The average consumption rate of sample liquid at the time is the whole liter (ml). The dosage is expressed to a decimal point.
The second method is potassium titration method
7 Principle
After the sample is deproteinized, the silver salt is reduced to potassium hydroxide, and iron flakes and copper hydroxide are emulsified and then titrated with a light solution to determine the amount of manganese produced by oxidation. The amount of copper oxide is calculated and then the total amount of copper oxide is calculated.
B Reagent
GB/T 5009.7—2003
8.1 Acid solution in tartaric acid: weigh 34.3 g copper sulfate (CuS0.5H0), add appropriate amount of water, add U.mI. sodium iodide. Then add water to dilute to 1 ml, and burn with refined stone. 2 Alkaline tartaric acid ethyl ether: take 73 g tartaric acid and 50 g sodium hydroxide, dissolve in appropriate amount of water, and melt to 500 ml. Filter with refined stone, and store in rubber glass. 3 Prepare cotton first with (5/2 cold water for 2-3 minutes, then dissolve in 400 ml of sodium hydroxide for 2-3 minutes, pour off the wrinkles, and use hot water for acid-free period After soaking, soak with water. Then wash with water until it is not soluble, then shake with water. Make it into a slurry, soak and store in a glass, then fill it with water:
, 4 standard potassium manganate solution (0.1 lumul/L), 8.5 effective sodium hydroxide (40g/1.): weigh 100 ml sodium hydroxide, add 20 ml hydrolyzate tablets, add 100 ml sulfuric acid, cool and add 000 ml aqueous solution:
8.7 effective acid (3ml/1.1. Measure 80ml of hydrochloric acid and 120ml of water. 9. 125ml of ancient long vortex or heart complaint melting world. 9.2 Vacuum case with water, 10.1 Sample processing 10.1.1 Period, dairy products and protein-containing cold food, weigh 2.5. Multi-body sample (absorb 25.00ml-53.00ml liquid sample> 250ml volume, add 50ml water, probe and then 10ml copper tartrate electrophoresis (add water until mixed, use 3% dry paper to neutralize the liquid.
10.1.2 Alcohol-binding material; absorb 11.0ml sample, place in blood, neutralize with 4% sodium hydroxide solution until neutralized, heat on a water bath to one-fourth of the original volume, and then transfer to a 25JmL bottle. Add 5(ml water, mud]. The following is 10 ,, 1 ml of tartaric acid is added. "It is operated according to the law. 10.1.3 Foods containing starch: 10.00g-20,00g of sample, 250ml. Quantity, add 200ml of water: Heat in a 45 water bath for 1 hour. After cooling, add water to the limit and let it stand. Pipette 200ml of the supernatant in another 20L bottle, and press \, 1.1 add 0ml of alkaline tartar. It is operated according to the law. 1.4 Soda and other beverages containing carbon dioxide: Pipette 0.rL of the sample and place it in the middle of the bottle. After removing the carbon dioxide, the sample is more than m narrow 10.2 Take 50.00 ml of the sample liquid of the treated piece and put it into a 400 ml beaker. Add 25 ml of the aldehyde solution and 25 ml of ethyl carboxylic acid. Cover the surface with butane and heat. Control the surface to be full within 4 minutes. Boil for 2 minutes accurately. Heat for 10 minutes. Mix the mixture with cotton wool or [Si Wu melt and filter. Press and heat the beaker and precipitate until it is not alkaline. Put the mixture back into the original 400 ml beaker. Add 25 ml of acid solution and Add 25 mL of water and stir until the arsenic oxide is completely dissolved. Take the commercial potassium hydroxide standard solution [(1/5KVnC.-C.130mol/1.)_] as the full point. When the color turns slightly red, absorb 50 mL of water and add the same tartaric acid solution, 2 solution, ferric sulfate solution and water as the sample. According to the same method as CH/T5009.7-2003, calculate the content of reducing sugar calorie when dry arsenic oxide is 0.3. Calculate according to formula (2), X(V- V::xr1.54
In the test column, the original mass is equivalent to the mass of the test sample, the unit is gram MR, the volume of the sample potassium permanganate standard solution is measured in milliliters (ml). The volume of the reagent potassium permanganate standard solution is measured in milliliters (ml). The actual concentration of the potassium permanganate standard solution is measured in milliliters (/[.)7-, 54-
1L potassium rust standard solution [1/5KM) = 1.w/equivalent mass of oxidized acid, unit diameter is milligram (mg
According to formula 10, calculate the mass of the chemical industry, refer to Table 1, and then calculate the sample content, and use formula (3) for calculation: X
In the formula,
e×V/25t:x1(Gp×10)
-the content of the original substance in the sample, unit is gram per hundred gram (g/1Wg): m:
Check the difference to get the final original mass, unit is milligram (mg): The sample volume is in grams or liters (g or ml) The volume of the sample solution is in milliliters (mL): The total volume of the sample after treatment is in milliliters (mL). The result is to retain the significant figures.
Mercury 1 equivalent to the mass of cuprous oxide, fructose, lactose, invert sugar mass table
Conversion zone
Temporary sample
Unit is grams
Conversion zone
Chemical system
.08. :
.33. 5
33, ℃
Table 1 (continued)
Chemical format
steel
.22. :
15:, n
New trend
.s. I:
GA/T 5009.72003
Increase in grams (water content?
112: 0
Conversion
6i4, n
GB/T 5003.7—2003
Chlorination
184, 5
Two good
(including this)
115, 9
127, 6
-35, 3
176, !
Table 1 (general)
Invert sugar
Yellow chemical industry
*25, 4
2=5, s
2hi=,5
Pre-flower sticky
:nt, 5
111, 3
1:4, 6
125, 5
.2a. G
.33. 2
【承）
-F9, G
Unit firepower
Transformer
.23. 3
: 24, 4
Yinghua City! ||tt | 4 | | tt | 6
179, R
H/T 5009.7—2003
median is Punk
(auto water)
HF:, 4
2E:5,2
: 7E6, 3
Gn/T 5009.72003
Hongbei Yafu
4GR, 7
$25, 3
1 precision
138, E
183, -
198, 3
203, 9
2G3, 2
234, 2
2s0, 8
sr3, 8
Transformation
192, 4
134, 5
216, E
216, 7
Transformation
448, x
CHR, c
477, 4
Glucose
228, 5
233, :
225, :
The absolute difference between the results of the two independent determinations obtained under the five-fold repetition killing condition shall not exceed 10 rounds of technical level and traditional standard. ER
Transformation
234, 21.3 Foods containing starch: weigh 10.00g-20.00g of sample, add 250ml of water, heat in 45°C water bath for 1 hour. Add water until cool, and let stand. Pipette 200ml of the supernatant in another 20L perforated bottle, add 10ml of alkaline tartaric acid, and then add 1.10ml of the sample. 1.4 Soft drinks and other beverages containing carbon dioxide: Pipette 0.1L of the sample and place it in the middle of the bottle. After removing the carbon dioxide, put it into a volumetric bottle, wash it with water, and then put it into a container. Add water to 500ml, and then disinfect it for later use. 10.2 Take 50ml of the sample liquid of the treated tablets, put it into a 400ml beaker, add 25ml of the tablet solution and 25ml of ethyl carboxylic acid, cover it with a lid, heat it, control it to be full within 4min, boil it for 2min accurately, heat it for 10min, filter it with suction, and press it. And hot water iron beaker and sink, until it is not alkaline, put the car or melt block back into the original 4CL Xiao bad, add 25mL of acid solution and 25TmL of water, stir with the help of the mourning to make the arsenic oxide completely dissolved. Take the commercial potassium superoxide standard solution [(1/5KVnC.-C.130mol/1.)_ full and turn slightly red as the whole point. When 50mL of water is absorbed, add the same plate of tartaric acid grain ketone solution, 2 solution, ferric sulfate solution and water as the sample, and do the same as al
CH/T5009.7-2003
one force to do the white people:
f0.3 The result is calculated as follows:
The amount of reducing sugar calorie is calculated according to formula (2), X(V- V::xr1.54
In the test column, the original mass is equivalent to the mass of the test sample, the unit is gram MR, the volume of the sample potassium permanganate standard solution is measured in milliliters (ml). The volume of the reagent potassium permanganate standard solution is measured in milliliters (ml). The actual concentration of the potassium permanganate standard solution is measured in milliliters (/[.)7-, 54-
1L when potassium rust standard solution [1/5KM) - 1.w/equivalent mass of oxidized sub-adjustment, unit diameter is milligram (mg
According to formula 10, calculate the mass of the benefit industry, check Table 1, and then calculate the sample content, and calculate according to formula (3): X
In the formula,
e×V/25t:x1(Gp×10)
-the content of the original species in the sample, the unit is gram per hundred gram (g/1Wg): m:
Check the difference to get the final original mass, unit is Milligram (mg): The amount of sample in grams or milliliters (g or ml) is the amount of sample solution. Milliliters (mL): The amount of sample after treatment is in milliliters (mL). The result is to retain significant figures.
Mercury 1 is equivalent to the mass of cuprous oxide. The mass of glucose, fructose, lactose, and invert sugar is expressed as copper in the form of inverted sugar. The unit is grams.
Conversion zone
Chemical industry
.08. :
.33. 5
33,℃
Table 1 (continued)
The chemical temperature
of chemical steel
.22. :
15:, n
New trend
.s. I:
GA/T 5009.72003
The temperature is calculated
(including water?
112: 0
Conversion
6i4, n
GB/T 5003.7—2003
Chloride temperature
184, 5
Two good
(including this)
115, 9
127, 6
-35, 3
176, !
Table 1 (general)
invert sugar
yellow chemical industry
*25, 4
2=5, s
2hi=,5
front flower sticky
:nt, 5
111, 3
1:4, 6
125, 5
.2a. G
.33. 2
【承）
-F9, G
unit fire amount grams
converter
.23. 3
: 24, 4
Yinghua City! ||tt | 4 | | tt | 6
179, R
H/T 5009.7—2003
median is Punk
(auto water)
HF:, 4
2E:5,2
: 7E6, 3
Gn/T 5009.72003
Hongbei Yafu
4GR, 7
$25, 3
1 precision
138, E
183, -
198, 3
203, 9
2G3, 2
234, 2
2s0, 8
sr3, 8
Transformation
192, 4
134, 5
216, E
216, 7
Transformation
448, x
CHR, c
477, 4
Glucose
228, 5
233, :
225, :
The absolute difference between the results of the two independent determinations obtained under the five-fold repetition killing condition shall not exceed 10 rounds of technical level and traditional standard. ER
Transformation
234, 21.3 Foods containing starch: weigh 10.00g-20.00g of sample, add 250ml of water, heat in 45°C water bath for 1 hour. Add water until cool, and let stand. Pipette 200ml of the supernatant in another 20L perforated bottle, add 10ml of alkaline tartaric acid, and then add 1.10ml of the sample. 1.4 Soft drinks and other beverages containing carbon dioxide: Pipette 0.1L of the sample and place it in the middle of the bottle. After removing the carbon dioxide, put it into a volumetric bottle, wash it with water, and then put it into a container. Add water to 500ml, and then disinfect it for later use. 10.2 Take 50ml of the sample liquid of the treated tablets, put it into a 400ml beaker, add 25ml of the tablet solution and 25ml of ethyl carboxylic acid, cover it with a lid, heat it, control it to be full within 4min, boil it for 2min accurately, heat it for 10min, filter it with suction, and press it. And hot water iron beaker and sink, until it is not alkaline, put the car or melt block back into the original 4CL Xiao bad, add 25mL of acid solution and 25TmL of water, stir with the help of the mourning to make the arsenic oxide completely dissolved. Take the commercial potassium superoxide standard solution [(1/5KVnC.-C.130mol/1.)_ full and turn slightly red as the whole point. When 50mL of water is absorbed, add the same plate of tartaric acid grain ketone solution, 2 solution, ferric sulfate solution and water as the sample, and do the same as al
CH/T5009.7-2003
one force to do the white people:
f0.3 The result is calculated as follows:
The amount of reducing sugar calorie is calculated according to formula (2), X(V- V::xr1.54
In the test column, the original mass is equivalent to the mass of the test sample, the unit is gram MR, the volume of the sample potassium permanganate standard solution is measured in milliliters (ml). The volume of the reagent potassium permanganate standard solution is measured in milliliters (ml). The actual concentration of the potassium permanganate standard solution is measured in milliliters (/[.)7-, 54-
1L when potassium rust standard solution [1/5KM) - 1.w/equivalent mass of oxidized sub-adjustment, unit diameter is milligram (mg
According to formula 10, calculate the mass of the benefit industry, check Table 1, and then calculate the sample content, and calculate according to formula (3): X
In the formula,
e×V/25t:x1(Gp×10)
-the content of the original species in the sample, the unit is gram per hundred gram (g/1Wg): m:
Check the difference to get the final original mass, unit is Milligram (mg): The amount of sample in grams or milliliters (g or ml) is the amount of sample solution. Milliliters (mL): The amount of sample after treatment is in milliliters (mL). The result is to retain significant figures.
Mercury 1 is equivalent to the mass of cuprous oxide. The mass of glucose, fructose, lactose, and invert sugar is expressed as copper in the form of inverted sugar. The unit is grams.
Conversion zone
Chemical industry
.08. :
.33. 5
33,℃
Table 1 (continued)
The chemical temperature
of chemical steel
.22. :
15:, n
New trend
.s. I:
GA/T 5009.72003
The temperature is calculated
(including water?
112: 0
Conversion
6i4, n
GB/T 5003.7—2003
Chloride temperature
184, 5
Two good
(including this)
115, 9
127, 6
-35, 3
176, !
Table 1 (general)
invert sugar
yellow chemical industry
*25, 4
2=5, s
2hi=,5
front flower sticky
:nt, 5
111, 3
1:4, 6
125, 5
.2a. G
.33. 2
【承）
-F9, G
unit fire amount grams
converter
.23. 3
: 24, 4
Yinghua City! ||tt | 4 | | tt | 6
179, R
H/T 5009.7—2003
median is Punk
(auto water)
HF:, 4
2E:5,2
: 7E6, 3
Gn/T 5009.72003
Hongbei Yafu
4GR, 7
$25, 3
1 precision
138, E
183, -
198, 3
203, 9
2G3, 2
234, 2
2s0, 8
sr3, 8
Transformation
192, 4
134, 5
216, E
216, 7
Transformation
448, x
CHR, c
477, 4
Glucose
228, 5
233, :
225, :
The absolute difference between the results of the two independent determinations obtained under the five-fold repetition killing condition shall not exceed 10 rounds of technical level and traditional standard. ER
Transformation
234, 254-
1L potassium rust standard solution [1/5KM) = 1.w/equivalent mass of oxidized acid, unit diameter is milligram (mg
According to formula 10, calculate the mass of the chemical industry, refer to Table 1, and then calculate the sample content, and use formula (3) for calculation: X
In the formula,
e×V/25t:x1(Gp×10)
-the content of the original substance in the sample, unit is gram per hundred gram (g/1Wg): m:
Check the difference to get the final original mass, unit is milligram (mg): The sample volume is in grams or liters (g or ml) The volume of the sample solution is in milliliters (mL): The total volume of the sample after treatment is in milliliters (mL). The result is to retain the significant figures.
Mercury 1 equivalent to the mass of cuprous oxide, fructose, lactose, invert sugar mass table
Conversion zone
Temporary sample
Unit is grams
Conversion zone
Chemical system
.08. :
.33. 5
33, ℃
Table 1 (continued)
Chemical format
steel
.22. :
15:, n
New trend
.s. I:
GA/T 5009.72003
Increase in grams (water content?
112: 0
Conversion
6i4, n
GB/T 5003.7—2003
Chlorination
184, 5
Two good
(including this)
115, 9
127, 6
-35, 3
176, !
Table 1 (general)
Invert sugar
Yellow chemical industry
*25, 4
2=5, s
2hi=,5
Pre-flower sticky
:nt, 5
111, 3
1:4, 6
125, 5
.2a. G
.33. 2
【承）
-F9, G
Unit firepower
Transformer
.23. 3
: 24, 4
Yinghua City! ||tt | 4 | | tt | 6
179, R
H/T 5009.7—2003
median is Punk
(auto water)
HF:, 4
2E:5,2
: 7E6, 3
Gn/T 5009.72003
Hongbei Yafu
4GR, 7
$25, 3
1 precision
138, E
183, -
198, 3
203, 9
2G3, 2
234, 2
2s0, 8
sr3, 8
Transformation
192, 4
134, 5
216, E
216, 7
Transformation
448, x
CHR, c
477, 4
Glucose
228, 5
233, :
225, :
The absolute difference between the results of the two independent determinations obtained under the five-fold repetition killing condition shall not exceed 10 rounds of technical level and traditional standard. ER
Transformation
234, 254-
1L potassium rust standard solution [1/5KM) = 1.w/equivalent mass of oxidized acid, unit diameter is milligram (mg
According to formula 10, calculate the mass of the chemical industry, refer to Table 1, and then calculate the sample content, and use formula (3) for calculation: X
In the formula,
e×V/25t:x1(Gp×10)
-the content of the original substance in the sample, unit is gram per hundred gram (g/1Wg): m:
Check the difference to get the final original mass, unit is milligram (mg): The sample volume is in grams or liters (g or ml) The volume of the sample solution is in milliliters (mL): The total volume of the sample after treatment is in milliliters (mL). The result is to retain the significant figures.
Mercury 1 equivalent to the mass of cuprous oxide, fructose, lactose, invert sugar mass table
Conversion zone
Temporary sample
Unit is grams
Conversion zone
Chemical system
.08. :
.33. 5
33, ℃
Table 1 (continued)
Chemical format
steel
.22. :
15:, n
New trend
.s. I:
GA/T 5009.72003
Increase in grams (water content?
112: 0
Conversion
6i4, n
GB/T 5003.7—2003
Chlorination
184, 5
Two good
(including this)
115, 9
127, 6
-35, 3
176, !
Table 1 (general)
Invert sugar
Yellow chemical industry
*25, 4
2=5, s
2hi=,5
Pre-flower sticky
:nt, 5
111, 3
1:4, 6
125, 5
.2a. G
.33. 2
【承）
-F9, G
Unit firepower
Transformer
.23. 3
: 24, 4
Yinghua City! ||tt | 4 | | tt | 6
179, R | 5009.72003
Hongbei Yafu
4GR, 7
$25, 3
1 precision
138, E
183, -
198, 3
203, 9
2G3, 2
234, 2
2s0, 8
sr3, 8
Transformation
192, 4
134, 5
216, E
216, 7
Transformation
448, x
CHR, c
477, 4
Glucose
228, 5
233, :
225, :
The absolute difference between the results of the two independent determinations obtained under the five-fold repetition killing condition shall not exceed 10 rounds of technical level and traditional standard. ER
Transformation
234, 2x
CHR, c
477, 4
glucose
228, 5
233, :
225, :bzxz.net
The absolute difference between the results of the two independent determinations obtained under the five-fold repetition killing condition shall not exceed 10 rings above the technical level. ER
transfer
234, 2x
CHR, c
477, 4
glucose
228, 5
233, :
225, :
The absolute difference between the results of the two independent determinations obtained under the five-fold repetition killing condition shall not exceed 10 rings above the technical level. ER
transfer
234, 2
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.