Some standard content:
Chemical Industry Standard of the People's Republic of China
HG/T2218.1—91
Miehailing Aerosol Type A
Published on November 18, 1991
Ministry of Chemical Industry of the People's Republic of China
Implemented on July 1, 1992
W Chemical Industry Standard of the People's Republic of China
Miehailing Aerosol Type A
Subject Content and Scope of Application
HG/T2218.1—91
This standard specifies the technical requirements, test methods, inspection rules, and requirements for marking, packaging, transportation and storage of Miehailing Aerosol Type A.
This standard applies to Miehailing Aerosol Type A made from raw materials such as cypermethrin, piperonyl ether, trichlorobenzene, suitable solvents and propellants.
1.1 Active ingredient 1: Mosquito-killing agent
Chemical name: (S)-3-allyl-α-methyl-4-oxocyclopent-α-enyl (1R, 3R)-2,α-dimethyl-3-(α-methyl-1-propenyl) cyclopropanecarboxylate
Structural formula:
Molecular formula: CisH27O8
Relative molecular mass: 303.42 (according to the international relative atomic mass in 1985) 1.2 Active ingredient 2: Piperonyl butoxide
Chemical name: Oxidized piperonyl butoxide
Structural formula:
Molecular formula C1gH30O6
CH2CH=CH2
CH20C2H0CH .OCHg
Relative molecular mass: 338.45 (according to the international relative atomic mass in 1985) 1.3 Active ingredient 3. Trichlorobenzyl
Chemical name: 1,1,1-trichloro-2-(34-dichlorophenyl)ethyl acetate Structural formula:
Molecular formula: C10HCl.02
OCOCHs
Relative molecular mass: 336.5 (according to the international relative atomic mass in 1985) Approved by the Ministry of Chemical Industry of the People's Republic of China on November 18, 1991 and implemented on July 1, 1992
W.bzsoso.coI2 Technical requirements
2.1 Appearance: Colorless or light yellow transparent homogeneous liquid. HG/T 2218.1-91
Miehailing aerosol type A should also meet the following index requirements. 2.2
Methodino-3-thiocarb content, /L (20℃)
Piperonyl ether content, g/L (20℃)
Trichlorobenzyl content, /L (20℃)
Acidity (as HC1), g/L (20℃)
Atomization rate, % (m/m)www.bzxz.net
Net capacity, mL (net weight g)
Product pressure (55℃), MPa
Note: 1) See 4.2.
3 Test method
3.1 Determination of the content of diflubenzuron, piperonyl ether and trichlorfon ester 3.1.1 Pretreatment of the sample
600±6 (420±10)
Take a can of sample and spray the liquid according to the instructions on the can. Collect about 50mL of the sample in a 200mL beaker and pour the collected sample into a dropper bottle for testing.
3.1.2 Reagents and solutions
a. Piperazine standard: known content;
b. Piperazine standard: known content;
c. Trichlorobenzyl standard: known content;d. Tributyl citrate: chromatographic grade;
e. Stationary liquid: DC-200, OV-210;
f. Support: ChromosorbW/AW-DMCS (150~180um);g. Piperazine standard solution: weigh 0.14g (accurate to 0.2mg) of piperonyl standard, place it in a 10mL volumetric flask, and dilute it to the mark with aviation kerosene or reagent benzene.
h. Piperazine standard solution: weigh 0.10g (accurate to 0.2mg) of Piperazine standard, place it in a 25mL volumetric flask, and dilute it to the mark with aviation kerosene or reagent benzene.
i. Trichlorobenzyl standard solution: weigh 0.46g (accurate to 0.2mg) of trichlorobenzyl standard, place it in a 10mL volumetric flask, and dilute it to the mark with aviation kerosene or reagent benzene. j. Tributyl citrate internal standard solution: weigh 4.6g (accurate to 0.2mg) of tributyl citrate, place it in a 250mL volumetric flask, and dilute it to the mark with aviation kerosene or reagent benzene.
k Aviation kerosene or reagent benzene.
3.1.3 Instruments
a. Chromatograph: with hydrogen flame ionization detector: b. Chromatographic column: 10% DC-200, 4% oV-210 coated on 150~180μm ChromosorbW/AW-DMCS support, dry and load into a stainless steel column with a length of 1m and an inner diameter of 4mm; c. Recorder or microprocessor;
d. Micro syringe: 1uL.
W.bzsoso：cOn3.1.4 Operation steps
HG/T2218.1—91
3.1.4.1 Chromatographic operation conditions (taking 102G chromatograph as an example)a. Temperature: column temperature 230℃, detection chamber 250℃, vaporization chamber 250℃b. Gas flow rate: carrier gas (Nz) 20mL/min, hydrogen 40mL/min, air 400mL/min;c. Sensitivity: 1000×1/16;
d. Recorder range: 5mV;
e. Paper speed: 5mm/min;
f. Sample injection volume: 0.5~0.6uL;
g. Retention time: 2.8min for trichlorfon, 5.08min for piperonyl butoxide, 7.0min for tributyl citrate, and 12.5min for fenvalerate (see figure). 3.1.4.2 Preparation of standard sample solution
Accurately pipette 2mL each of piperonyl butoxide standard solution, fenvalerate standard solution, trichlorfon standard solution, and tributyl citrate internal standard solution into a 10mL volumetric flask, and dilute to scale with aviation kerosene or reagent benzene. 3.1.4.3 Preparation of sample solution
Accurately pipette 2mL of tributyl citrate internal standard solution into a 10mL volumetric flask, and dilute to scale with the sample treated in 3.1.1.
3.1.4.4 Determination
Under the selected conditions, after the instrument is stable, first repeatedly inject 0.5uL of the standard solution and determine the response ratio each time (peak height of piperonyl or dichlorvos/peak height or peak area of tributyl citrate, until the relative deviation of the ratio of two consecutive responses is within 0.5%; then inject the sample solution twice and determine the average response ratios R1, R2, R3 of trichlorfon, dichlorvos, piperonyl and tributyl citrate respectively. R3; Then inject the standard solution, and determine the average response ratios Ra, Rb, and Re of trichlorfon, cypermethrin, piperonyl butoxide, and tributyl citrate in the standard solution before and after the injection of the sample solution. 3.1.4.5 Calculation
The trichlorfon content X (g/L), cypermethrin content X2 (g/L), and piperonyl butoxide content Xs (g/L) are calculated according to formula (1), formula (2), and formula (3), respectively:
Where: R
Xi= RI·m1:PX 1000
X2=R.·m·PX1000
Rgmg.PX1000
-The average value of the peak height or peak area ratio of trichlorfon and tributyl citrate in the sample solution;-The average value of the peak height or peak area ratio of cypermethrin and tributyl citrate in the sample solution;R3-The average value of the peak height or peak area ratio of piperonyl butoxide and tributyl citrate in the sample solution;Ra-The average value of the peak height or peak area ratio of trichlorfon and tributyl citrate in the standard solution;R-The average value of the peak height or peak area ratio of piperonyl butoxide and tributyl citrate in the standard solution;R.-The average value of the peak height or peak area ratio of piperonyl butoxide and tributyl citrate in the standard solution;mi
-The mass of trichlorfon in the standard solution, g;pipermethrin in the standard solution, g The mass of mosquito-repellent, g; the mass of piperonyl ether in the standard solution,; P—the purity of the standard, %;
8——the volume of the sample added, mL.
*（3）
WL.
HG/T2218.1—91
Gas chromatogram
1—Trichlorobenzyl; 2—Diamoxyl; 3—Tributyl citrate; 4—Piperonyl ether In this method, the parallel deviation of dichlorobenzyl and piperonyl ether should not be greater than 0.05g/L, and the parallel deviation of trichlorobenzyl should not be greater than 0.3g/3.2 Acidity determination
3.2.1 Reagents and solutions
a. Sodium hydroxide (GB629): c(NaOH)=0.02mol/L standard solution; b. 95% ethanol (GB679);
c.Phenolic indicator.
3.2.2 Operation steps
Accurately pipette 10 mL of the sample treated in 3.1.1, place it in a 250 mL conical flask, add 30 mL of neutralized ethanol and 5 to 7 drops of phenolic indicator, and titrate with sodium hydroxide standard solution until it turns slightly red. 3.2.3 Calculate
Acidity x, (g/L) Calculate according to formula (4):
Where: o
X,=.VX0. 0365×1000
Concentration of sodium hydroxide standard solution, mol/L; - Volume of sodium hydroxide standard solution consumed in titration of sample, mL; (4)
-Mass of hydrochloric acid in grams equivalent to 1.00 mL of sodium hydroxide standard solution [c(NaOH)=1.000mol/L); 0.0365-
10.0——Volume of sample pipetted, mL. 3.3 Determination of atomization rate
After weighing the iron can containing the type A Miehailing Aerosol, follow the instructions on the can, spray the liquid, weigh the iron can and the residual liquid, then open a hole to pour out the residual liquid, and then weigh the empty can. The atomization rate X (%) is calculated according to formula (5):
Where: mi
-the mass of the can before spraying, g;
the mass of the can after spraying, g;
the mass of the empty can, g.
3.4 Determination of net weight
ml-m2×100
W. The operation method is the same as 3.3.
The net weight X. (g) is calculated according to formula (6):
Where: m1ms is the same as 3.3.
3.5 Determination of product pressure
3.5.1 Instrument
Pressure gauge 0~1.6MPa.
3.5.2 Determination steps
HG/T2218.1-91
Xg=m1-ms
Take two cans of samples, shake them several times, place them in a fume hood, remove the outer cover, gently twist off the safety cover and pull out the nozzle, align the inlet of the pressure gauge with the valve core of the miehling, press hard, and read the pressure indicated by the two cans. The product pressure X is calculated according to formula (7):
Xz=P+(55-t)×0.011
Where: p——the average value of the indicated pressure, MPa; 55——the temperature specified in the standard, ℃; t——the temperature when the pressure is measured, ℃;
0.011——pressure correction coefficient, MPa/℃. 4 Inspection rules
(7)
4.1 Type A Miehailing Aerosol shall be inspected by the quality supervision and inspection department of the manufacturer. The manufacturer shall ensure that all indicators of the products shipped meet the standard requirements. Each batch of Type A Miehailing Aerosol shall be accompanied by a quality certificate. 4.2 Atomization rate is a type inspection item and is inspected once a week. 4.3 The quantity of each batch of Type A Miehailing Aerosol shall not exceed the maximum capacity of the preparation gold. 4.4 Samples shall be taken from 0.2% of the packaging of each batch of products. For small batches, no less than three boxes shall be used; one can shall be randomly selected from each packaging box, and approximately equal samples shall be taken from each can, with a total amount of no less than 0.25L, for testing the active ingredients and acidity; other items shall be tested by taking samples from the original packaging. 4.5 The user has the right to inspect whether the received products meet the requirements of this standard in accordance with the provisions of this standard. 4.6 In the test results, if some indicators do not meet the standards, samples should be taken from twice the amount of packaging for re-verification. If only one indicator does not meet the requirements, the whole batch of products will be unqualified. 4.7 When the supply and demand parties have disputes over product quality and cannot resolve them through negotiation, the statutory inspection agency shall conduct arbitration analysis according to the inspection methods specified in this standard.
5 Marking, packaging, transportation and purchase and storage
5.1 Miehailing Aerosol Type A is packaged in tinplate cans with a deformation pressure greater than or equal to 1.2MPa and a burst pressure greater than or equal to 1.4MPa. It is equipped with a plastic cover and the net capacity of each can is 600mL. Every 24 cans of products are tightly arranged in a cardboard box, and the net weight of each box does not exceed 15kg; other forms of packaging can also be used according to user requirements. 5.2 Each box of packaging should be printed with the manufacturer's name, address, product name, specifications, production date, standard number, drugs, fire prevention and other signs, and each box is accompanied by a quality certificate.
5.3 Each can is printed with the product name, manufacturer name, factory address, net capacity, prevention and treatment targets, usage, precautions, registration certificate number, production license number, active ingredients, production date, and signs such as drugs and fire prevention. 5.4 Storage and transportation shall be carried out in accordance with the "Dangerous Goods Transportation Rules" of the Ministry of Transport; this product shall not be stored or transported together with food, and transportation and loading and unloading shall be handled with care, violent impact is strictly prohibited, and it shall not be inverted. 5.5 The product should be stored in a cool, ventilated and dry place, avoid being close to high temperatures, and exposure is strictly prohibited. 5.6 The shelf life of the product is two years under the above storage and transportation conditions. 5
o
Additional instructions:
HG/T2218.1—91
This standard is proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is technically managed by the Shenyang Chemical Industry Research Institute of the Ministry of Chemical Industry. This standard is drafted by the Shenyang Chemical Industry Research Institute and Zhongshan Fine Chemical Industry Co., Ltd. The main drafters of this standard are Ye Guoheng, Wu Zhijian, Yang Shaozong, Zhang Weiguang and Gao Shaoxia.1. Type A of Miehailing Aerosol is packaged in tinplate cans, the deformation pressure of which is greater than or equal to 1.2MPa, the bursting pressure is greater than or equal to 1.4MPa, and it is equipped with a plastic cover. The net capacity of each can is 600mL. Every 24 cans of products are tightly arranged in a cardboard box, and the net weight of each box does not exceed 15kg; other forms of packaging can also be used according to user requirements. 5.2 Each box of packaging should be printed with the manufacturer's name, factory address, product name, specifications, production date, standard number, drugs, fire prevention and other signs, and each box is accompanied by a quality certificate.
5.3 The surface of each can is printed with the product name, manufacturer's name, factory address, net capacity, prevention and control target, usage, precautions, registration certificate number, production license number, active ingredients, production date and drugs, fire prevention and other signs. 5.4 Storage and transportation shall be carried out in accordance with the "Dangerous Goods Transportation Rules" of the Ministry of Transport; this product shall not be stored or transported with food, and transportation and loading and unloading should be handled with care, violent impact is strictly prohibited, and it cannot be inverted. 5.5 The product should be stored in a cool, ventilated and dry place, avoid high temperature and strictly prohibit exposure to sunlight. 5.6 The shelf life of the product is two years under the above storage and transportation conditions. 5
o
Additional instructions:
HG/T2218.1—91
This standard is proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is technically managed by the Shenyang Chemical Research Institute of the Ministry of Chemical Industry. This standard was drafted by the Shenyang Chemical Research Institute and Zhongshan Fine Chemical Industry Co., Ltd. The main drafters of this standard are Ye Guoheng, Wu Zhijian, Yang Shaozong, Zhang Weiguang and Gao Shaoxia.1. Type A of Miehailing Aerosol is packaged in tinplate cans, the deformation pressure of which is greater than or equal to 1.2MPa, the bursting pressure is greater than or equal to 1.4MPa, and it is equipped with a plastic cover. The net capacity of each can is 600mL. Every 24 cans of products are tightly arranged in a cardboard box, and the net weight of each box does not exceed 15kg; other forms of packaging can also be used according to user requirements. 5.2 Each box of packaging should be printed with the manufacturer's name, factory address, product name, specifications, production date, standard number, drugs, fire prevention and other signs, and each box is accompanied by a quality certificate.
5.3 The surface of each can is printed with the product name, manufacturer's name, factory address, net capacity, prevention and control target, usage, precautions, registration certificate number, production license number, active ingredients, production date and drugs, fire prevention and other signs. 5.4 Storage and transportation shall be carried out in accordance with the "Dangerous Goods Transportation Rules" of the Ministry of Transport; this product shall not be stored or transported with food, and transportation and loading and unloading should be handled with care, violent impact is strictly prohibited, and it cannot be inverted. 5.5 The product should be stored in a cool, ventilated and dry place, avoid high temperature and strictly prohibit exposure to sunlight. 5.6 The shelf life of the product is two years under the above storage and transportation conditions. 5
o
Additional instructions:
HG/T2218.1—91
This standard is proposed by the Science and Technology Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is technically managed by the Shenyang Chemical Research Institute of the Ministry of Chemical Industry. This standard was drafted by the Shenyang Chemical Research Institute and Zhongshan Fine Chemical Industry Co., Ltd. The main drafters of this standard are Ye Guoheng, Wu Zhijian, Yang Shaozong, Zhang Weiguang and Gao Shaoxia.
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