Some standard content:
ICS.71.080.40
Chemical Industry Standard of the People's Republic of China
IIG/T3271—2000
HG/T36742000
Industrial Chloroacetic Acid
Industrial Chloromethane
Published on 2000-06-05
Implemented on 2001-03-01
State Administration of Petroleum and Chemical Industry
1871.080.20
Beitai No.: 74912000
[IG/T 3674—2000
This standard is equivalent to the alkane in Japanese Industrial Standard JSK1516--1984. The main technical differences of this standard JTSK1516-1984 are as follows: This standard refers to the combination of dibutyl ether and ethylene glycol in the determination of the fixed liquid of pure hydrogen peroxide for industrial use. This standard is issued by the Technical Supervision Bureau of the Ministry of Chemical Industry of the People's Republic of China and the former Ministry of Chemical Industry. This standard is proposed by the National Chemical Standardization Technical Committee. The drafting unit of this standard is Nantong Jiangshan Pesticide Chemical Co., Ltd.: The drafting units of this standard are Sichuan Baigongman Chemical Co., Ltd. and Shandong Pesticide Industry Co., Ltd. The main drafters of this standard are Gan Huimin, Lai Xie'an, Guo Yun, and Ran Cong. The Shandong Enterprise Zone Chemical Standardization Technical Committee is responsible for the selection of this standard. 1 National Chemical Industry Standard of the People's Republic of China Industrial Fluoromethane Methyl chloride for indastrial use IIG/T 3674—20
This standard specifies the requirements, test methods, specifications and standards for the above-mentioned tert-butyl ethers. Packaging, transportation, storage, etc. This standard applies to tert-butyl ethers produced by thermal oxidation of alkane, medium hydrogenation or chemical recovery. The product is mainly used as a raw material in the production of organic silicon compounds, cellulose aldehydes and other organic compounds, and can also be used as an organic compound additive. Molecular formula: CH, C!
Relative molecular weight: 5, 15 (19 2 Reference Standards
The following standards contain clauses. The clauses that are quoted in the standard must be the clauses of this standard. When this standard is issued, the products shown are valid. All standards will be accepted. The parties using this standard should discuss the possibility of reusing the following standards with new versions, GH2991990
Dangerous goods packaging mark
Weekend mark for packaging end
GK/T6C
CB/T GB/T 603—1988
GB/T 1250—1989
Chemical reagents for separation analysis (content analysis) Preparation of chemical reagents using standard methods for determination of batch limits and determination methods G5/T SS73—1986
General rules for sampling of chemical products
GB/T 5580—1988
Glycerol chemical products for general purchase
GB/T 5582—1982
GB/T 9722—1988
Gas chromatography in analytical laboratories using hydrothermal and thermal methods (neq[S03696:1337)
Gas filling regulations
GB 14131553
3 Requirements
3.1 Appearance: colorless transparent liquid, no suspended matter. 3.2
The product fluorine content shall meet the requirements of Table 1.
Table 1 Requirements
Acidity (R)
Mature liquid
National Petroleum and Chemical Industry Bureau 2000-C6-5 Approved Grade: u, uD:
First-class productbZxz.net
n, na5
Qualified product
2001-13-01 Implementation
4 Test method
HGT3674—2000
The test materials and reagents used in this standard are separation reagent and grade 3 water specified in G3/6582. The required standards for cooling test, preparation and products, if no other requirements are specified, shall be prepared in accordance with GB/T601.B/6C.
4.1 Appearance
Take a sample with a cooling rate of about 1 μm and a slow boiling point of 13 mm in the inner diameter of the test tube. Use a dry cloth to remove the dust or moisture on the surface of the test tube. The sample should be transparent and free of floating marks when viewed from the side. 4.2 Determination of temperature
4.2.1 Procedure 1
Use dibutyl pyridine (DBP) and FFG-2000 (FFG-2000) as a fixed liquid to separate the components in the high chloroform, detect with a thermal conductivity detector, and calculate the content of methane by surface normalization method. 4.2.2 Reagents and materials
4.2.2.1 Carrier gas: gas 0.9.3.
4.2.2.2 The body, 62u, the concentration 0.20~0.2%mm4.2.2.3 Liquid: Apple. Formaldehyde and polyethylene glycol 20004.2.2.4 Agent: Internal
4.2.3 Only equipment. Equipment
.2.3.1 Gas system spectrometer: from potential induction detector, its sensitivity and stability should meet the requirements of GB/T9722, 4.2.3.2 Sample delivery device I body into the test · or other liquid with the stomach with the stomach, the sample loading needs to be schematic diagram as shown in the figure: Release rate
1 Buy a year instrument, 2 sets of disease through the standard path 13-capillary back: 4-full cost gas: 5 color win note Figure 1 optional flow diagram business
The diameter of the stainless steel pin group yarn core in the metal filter is 2--, so as to remove the possible organic matter in the sample to make the actual protection into Column 2: When sending samples, use a stainless steel capillary or a brush of appropriate length to prevent sample vaporization and cause loss of sample quality. Repeated operation: When feeding, open the column and rinse the sample for a few seconds. Then close the outlet of the instrument. If the pressure inside the instrument is not high, fill it with gas. 4.2.33 Sampling belt, 250--022ml. Stainless steel, fire polished, structure size as shown in Figure 2. 1K15161984 Sichuan Channel West brand gas refining 5g and residual bacteria soil 3 are used as the filling materials. 12 HG/T3674 [—2—Safety: Section 4 Sampler (unit, mm) 4.2.3.4 The structure of the sampling group is shown in Figure 3. 1 row of ministers 2 children and buy strong population thorough connection 2 Figure 3 Xiang instrument belt
4.2.3.5 Chromatographic hanger: 3m long, inner diameter 3~2mm not calcium filled hanger. 4.2.3.6 Spectral data processing machine or dangerous spectrum work plan. 4.2.4 Chromatographic analysis conditions
HG/T3674-2000
4.2.4.1 Still phase, weigh 1.0 poly 7. diol 29 in 25Cml. calcined, with propylene as rate, add pressure on water to make it completely dissolved, then take 19.0g of dibutyl 2-hydroxy dicarboxylate, and then add 1006211 standard body through the example of people to completely lubricate + way oil even! . After the solution evaporates, the sample is dried under an infrared lamp. 4.2.4.2 Filling of the chromatographic column: Cover the H port of the chromatographic column with a small amount of glass wool, then draw air from the outlet, and then install the column into the chromatographic column by gently moving it, and then pull it with a stainless steel hook with an inner diameter of 5 mm. Aging of the chromatographic column: Disconnect the outlet of the chromatographic column from the detector through a gas, and age it for more than 3 hours at 9 to 100 °C. 4-2.4.3
The recommended values of chromatographic analysis conditions are shown in the table?
Table 2 Recommended conditions for X-ray diffraction analysis
Typical temperature, C
Detection temperature, C
Test temperature, C
Gas, mL/min
4.2.5 Analysis steps
4. 2. 5. 7 Sampling
Fluid]
Connect the point-in-air sampler with a dry sampling tube to the sample container. Open the valve of the sample container and open the drain valve of the sampler tube to discharge the sample. After fully replacing the air in the sampler, close the drain valve of the sampler tube and then open the inlet of the sampler to allow the sample to enter the sample in the liquid phase. After sampling, disconnect the sample tube from the sample container and use the drain valve of the sampler tube to adjust the sample volume so that it does not exceed 30% of the volume in the sampler. 4.7.5.2 Determination
Start the instrument and make necessary adjustments to achieve the analytical conditions recommended in Table 3, or select appropriate color components by quick elimination to draw a suitable analysis environment. After the instrument is set, prepare for sampling. Hang the sampler filled with liquid sample on the chromatograph, turn the sampler outlet valve downward, and connect it to the chromatograph. Connect the interface. The connection process can be as small as possible to avoid the influence of air: open the sampler notch, and adjust the injection volume: inject several times continuously. After removing the air in the system, measure the sample, and use the surface normalization method to calculate the sample. The typical chromatogram is shown in Figure 4. The relative retention time is shown in Table 3. Table 4. 13-chloro-2-nitropropene: 4-chloro-2-nitropropene: 5-chloro-2-nitropropene: 5-chloro-2-nitropropene: 14 ... In the above, component name, tt||methane, tt||1.1 year, tt||methane, tt||relative error, H/T36742000, the relative error of methane expressed by mass H is calculated according to the formula (1>: x
or: A
methane, cn
peak area of a component!, tin
4.2.7 allowable error, take the average value of two parallel determination results as the determination result: the difference between the results of the second half of the determination should not exceed 0. Above: 4. 3 Determination of solubility
4.3.1 Summary of the method
The sample is vaporized and introduced into water to absorb the soluble substances contained in the sample. The sample is titrated by filtration using a natural oxidative chain standard with a boron nitrate as an indicator to calculate the acid salt content.
4.3.2 Apparatus and equipment
4.3.2.1 Receiving bottle: The structure size is as shown in Figure 6, or a device with a saturation of about 100% or more, with internal 3
[~Interchangeable ground joint; 2-glass sintered core 15~2 Figure 6 Absorption (unit; mm)
4.3.2.2 Conical flask -1ccmL:
4.3.2.3 Large flat; the maximum weighing is not less than 105 cCcg sensitivity 0.1R4.3.3 Reagents and droplets
4.3.3.1 Indicator solution: 10 tablets/T., 4.3.3.2 Standard titration solution of sodium hydroxide: e(NaOH)-c.21mol/L.4.3.3.3 Neutral water: Collect 400mL of water and add 1mL of phenol green indicator solution for 4 seconds, and titrate with 0.01mL/T. standard sodium hydroxide solution until the droplet shows only white color. 4.3.4 Analysis steps
HG/T3674-2D00
Add 1mL of neutral water to each collection bottle, and connect each collection bottle with a catheter. The sampler outlet is connected to an absorption bottle, and the test sample passes through the absorption bottle. After passing about 1 (accurate to 1) test rod, close the outlet valve, combine the collected solution and put it into the test bottle. Titrate with 0.1mL sodium hydroxide standard solution until the solution turns blue. Record the volume of sodium hydroxide standard solution consumed. 4.3.5 Analysis of the given rate
The volume of the standard sodium hydroxide solution consumed in the titration is calculated by the mass fraction of the acid in the solution (II) (2): Vexc.035=x100=
Where: V
The volume of the standard sodium hydroxide solution consumed in the titration is L: The actual volume of the sodium hydroxide solution titrated with the standard sodium hydroxide solution, nl/l; The mass of the sample is g:
The mass of the salt equivalent to 1.1% sodium hydroxide standard solution Nat) =: 0mn]1.
4.3.6
The arithmetic mean of the two parallel determination results is taken as the determination result. The difference between the two parallel determination results is not less than 0.2%. 4.4 Determination of moisture
4.4.1 Method summary
The moisture in the sample is determined by the iodine in the electrolytic wave: the consumption of the sample can be determined by the same number of cells used in the electrolytic solution, and the measured water quality can be read on the digital display. 4.4.2 Instruments
4.4.2.1 Sample source: as shown in Figure 2,
4.4.2.2 Sampling instrument: as shown in Figure 3. t.4.2-3 Shooting needle: area 15c~230mm, diameter c.5mml. 4.4.2.4 Determination of water content in electric quantity, as shown in Figure 7, other measures to meet the requirements of analysis and safety, 17
HG/T3674-2000
1-classroom 2-rigid,:-electric new electric input 14T explosion white 15 type and injection base 6 sample injection population 7-double-beat test brush potential: 3-Shang Teng 50-select sub-diagram? Electric moisture meter
4.4.2.5 The maximum weighing amount is less than 5000g and the end amount is 0.1g4.4.3 Reagent expansion dyeing
Electromote moisture meter reagent (commercial reagent), 4.4.4 Step frequency
4.4.4.1 Adjustment of water content in electric quantity
Yao people test the electric moisture meter, adjust the electric moisture meter to make the clearing pool reach a water-free state. 4. 4. 4.2 Determination
Connect the injection needle with a 1-2>m stainless steel (or suitable material) temporary small person to the sample outlet valve of the existing sample: Make the injection needle into the electric stopper to determine the sample injection bed, and adjust the sample volume (accurately according to the water content of the sample) to 10B or more. Then titrate to the end point and read the water content at this time. 4.4.5 Expression of analysis results
Based on the percentage of water, calculate according to (5): 190
In the formula:
water quality + blood +
quality of the sample +. || tt||4.4.6 Allowable error
Take the arithmetic mean of the results of two parallel determinations as the determination station sample. The difference between the two parallel determinations shall not be greater than 0.002%. 4.5 Determination of evaporation
4.5.1 Allow the sample to evaporate naturally and weigh the mass of the residue. 18
4.5.2 Instruments and equipment
HG/T3674-2000
4.5.2.1 Evaporator: Main hard glass evaporation tube, weighing tube and water grid assembly, installed as shown in Figure 8. About 500% of the standard
1-Cabinet feeling step is clear 4.5.2.2 Constant temperature drying oven: the temperature is (102)℃. 4.5.3 Analysis step: Dry the weighing tube in a constant temperature drying oven at (25±2)℃ for about 30 minutes, transfer it to a drying curtain and cool it down, weigh its mass (accurate to 0.0002g) and connect it to the evaporator. Weigh about 510g (accurate to 18) of the cooled film sample into the evaporation tube: transfer the whole tube to the water bath to evaporate: adjust the water temperature until the sample can be evaporated for about 2h. After the evaporation is completed, wash it with about 10mL of methanol twice. Measure the inner wall, adjust the water bath temperature to about 0, and add "chloroform". Remove the hot gas from the weighing tube and place it in a (105-2) combustion box for about 10 minutes. After cooling in a desiccator, weigh its mass (accurate to o.nn2g).
4.5.4 Expression of analytical results
The standard content of the gas expressed as the measured white fraction × is calculated using formula (4): X=
Where: Two.
Weigh the mass of the whole piece:
The mass of the sample weighed instead of g:
The mass of the test chamber.
4.5.5 Allowable difference
HG/T 3674—2000
The arithmetic mean of the results of two parallel determinations shall be reported as the test result: the difference between the results of two parallel determinations shall not be greater than 0.05%. 5 Inspection rules
5.1 The items specified in the standard are type inspection items, of which the concentration and moisture content are factory inspection items. Under normal circumstances, a type inspection shall be carried out at least once every three months.
5-2 The products shall also be inspected by the quality inspection department of the manufacturer. The manufacturer shall ensure that all products leaving the factory meet the requirements of this standard and shall be accompanied by a quality certificate in a certain format, which shall include the manufacturer name, address, product name, grade, net content, batch number minus date of production and the number of this standard.
5.3 The user has the right to conduct quality inspection on the products received in accordance with the provisions of this standard. 5.4 Products of equal quality are grouped as one batch, and each batch of products shall not exceed the maximum quantity, 5.5 The number of sampling units and the sampling quantity shall be determined in accordance with 5.5 of GB/T6678-198, and the results shall be judged in accordance with the rounding value ratio method of GB/T12G0. If one of the indicators of the test results does not meet the requirements of this standard, a new batch of products shall be sampled from the packaging units of double the quantity. If only one indicator of the test results does not meet the requirements of this standard, the batch of products shall be judged as unqualified.
5.7 The maximum number of digits of the analysis results shall be consistent with the technical requirements. 6 Marking, packaging, transportation and storage
1.1 Industrial chlorine products should be packaged in non-explosive and non-contaminated gas cylinders. 6-2 Industrial chlorine products should be packaged in accordance with the provisions of the filling standard for chlorine gas cylinders G11133. 6.3 The packaging container should be clearly printed with labels, including the product name, standard number, manufacturer name, net content, and the "Marketing" mark should be printed according to GB190 regulations, and the "Handle with care" and "Avoid heat" marks should be printed according to GB191 regulations. 6.4 Industrial chlorine products should be placed in a well-ventilated place to avoid exposure to sunlight and sunlight. 6.5 The storage and transportation of industrial chlorine products should comply with the Chinese Standard. Regulations of the People's Republic of China on the storage and transportation of hazardous materials by road, highway and water
E.6 Industrial chlorine products must not be removed or struck during transportation and packaging. Handle with care: to avoid damaging the packaging container and causing the product to leak. 7 Safety
Industrial methane is a toxic gas. Inhalation can cause dizziness and nausea. When mixed with air or in contact with high temperature, the pressure in the container increases, which may cause combustion and explosion. The maximum allowable concentration of methane chlorine in the workplace is BDm/blood. Operators should wear protective equipment to avoid contact with the human body. If skin contact occurs, rinse immediately with plenty of water! If inhaled, leave the scene immediately to a fresh air place and seek medical treatment in time.
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