HG/T 2467.6-1996 Specification for the preparation of pesticide aqueous solution product standards
Some standard content:
HG/T 2467.6—1996
HG/T2467--93 "Specifications for the Preparation of Pesticide Product Standards" industry standard is based on the original national and industry standards for pesticides, absorbs the common points and advantages of international pesticide standards and foreign advanced standards, and is formulated in accordance with the writing requirements of GB1.1-87 "Guidelines for Standardization Work". In 1993, according to Part 3 of the IEC/ISO Guidelines "Rules for the Drafting and Expression of International Standards", GB1.1-87 was revised, and it was required to implement GB/T1.1-1993 from 1995. Therefore, HG/T2467-93, which was compiled in accordance with GB1.1-87, should also be revised in a timely manner to meet the needs of compiling newly formulated and revised national standards, industry standards, local standards and enterprise standards for pesticide products. The main points of this standard revision are as follows:
1. 1. Added a preface, and determined the main contents that the preface should include; 2. Changed the title of Chapter 1 "Subject Content and Scope of Application" to "Scope"; 3. Added a prescribed introduction before citing the standard; 4. Cancelled the product classification chapter;
5. Changed the title of Chapter 3 "Technical Requirements" to "Requirements"; 6. Cancelled the chapter on inspection rules, and changed the sampling method of the chapter to "sampling", and put it at the beginning of the chapter on test methods as one of the items. Considering that most pesticide product standards are mandatory, the elements of product inspection and acceptance rules are still retained and placed at the end of the chapter on test methods as one of the items; 7. The title of the original Chapter 7 "Marking, Packaging, Transportation and Storage" was changed to "Marking, Labeling, Packaging, Storage and Transportation" as the revised Chapter 5; 8. Modifications and supplements were also made to some parts of the original standard. For example, it was clarified that the rounded value comparison method is used for the treatment of limit values. This standard replaces HG/T2467-93 from the date of implementation. This standard is proposed by the Technical Supervision Department of the Ministry of Chemical Industry of the People's Republic of China. This standard is under the jurisdiction of Shenyang Chemical Industry Research Institute, Ministry of Chemical Industry. This standard was drafted by Shenyang Chemical Industry Research Institute, Ministry of Chemical Industry. This standard was drafted by Qingdao Pesticide Factory. The main drafters of this standard are: Hou Yukai, Wang Xuecheng, Zhao Xinxin, Yang Jian, Lou Shaowei. 273
HG/T2467.6-1996
1. Special part information
Contents to be included in the foreword of product standards
Indicate the degree and version of the adoption of international standards or advanced foreign standards, and explain the adoption of international guidelines or other similar standards and documents.
Indicate the main technical differences and brief reasons with the adopted object; explain the changes in important technical contents from the previous version; explain the relationship with other standard documents or other documents, and the requirements for the implementation transition period; explain that this standard leads to the abolition or replacement of all or part of other standard documents; - Indicate which appendices are standard appendices and which are indicative appendices. 2. Basic part information
This standard was proposed by .
This standard is under the jurisdiction of.
Drafting unit of this standard: When necessary, the responsible drafting unit and participating drafting units may be specified. Main drafters of this standard: Generally no more than 5 people. 274
Chemical Industry Standard of the People's Republic of China
Specification for the preparation of pesticide aqueous product standards
HG/T 2467. 6—1996
This standard specifies the specification for the preparation of pesticide aqueous product standards, and is applicable to the preparation of corresponding national standards, industry standards, local standards and enterprise standards for pesticide products.
Other names, structural formulas and basic physicochemical parameters of the active ingredients of this product are as follows: ISO common name:
Trade name:
CIPAC digital code:
Chemical name:
Structural formula:
Empirical formula:
Relative molecular mass (measured according to 19×× international relative atomic mass): Biological activity: (insecticide, acaricide, fungicide, herbicide) Melting point ℃
Boiling point ℃
Vapor pressure (20℃.Pa
Solubility (g/L, 20℃):
Stability: (stability to acid, alkali, light, heat, etc., half-life) 1 Scope
This standard specifies the requirements, test methods, and marking, labeling, packaging, storage and transportation of (common name) aqueous solution. This standard applies to (common name) aqueous solution processed from the standard-compliant (common name) original drug and necessary additives. 2 Referenced standards
The clauses contained in the following standards constitute the clauses of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards are subject to revision, and all parties using this standard should explore the possibility of using the latest versions of the following standards. The order of referenced standards is domestic first and then foreign; standards of all levels should be arranged step by step, first national standards and then industry standards; standards of the same level should be arranged in the order of the reference number, and standards of different industries should be arranged in the alphabetical order of the reference code. GB/T1601-93 Determination of pH value of pesticides GB/T1604-1995 Acceptance rules for commercial pesticides GB/T1605-79 (89) Sampling methods for commercial pesticides GB3796-83 General rules for pesticide packaging
HG/T2467.1-1996 Specifications for writing labels for pesticide technical products 3 Requirements
3.1 Appearance: It should be a stable homogeneous liquid without visible suspended matter and sediment. Approved by the Ministry of Chemical Industry of the People's Republic of China on April 8, 1996 and implemented on September 1, 1996
HG/T 2467.6-1996
3.2 (Common name) aqueous solution should meet the requirements of Table 1. Table. … (Common name) aqueous solution control items Index items
………Common name) content, %
……(harmful impurity name) content, %
Water insoluble matter content, %
pH range
Dilution stability
Low temperature stability
Hot storage stability
(or specified range)
The listed items are not exhaustive, nor are they required to be fully included in any aqueous solution standard. They can be increased or decreased according to the actual situation of different pesticide products.
2 Low temperature stability and hot storage stability tests should be conducted at least once every …month. Test method
4.1 Sampling
Carry out in accordance with the "sampling of emulsions and liquid states" method in GB/T1605. The sampled packages are determined by the random number table method; the final sampling volume should generally be not less than 250mL.
4.2 Identification test
Prepare with reference to 4.2 in HG/T2467.1. Determination of the content of (common name)
Prepare in the same format as the determination method in this standard. 4.4 Determination of the content of (name of harmful impurities) is prepared according to the specific determination method adopted.
4.5 Determination of water-insoluble matter content
4.5.1 Summary of method
Dissolve the sample in water, filter out all insoluble matter, dry and weigh. 4.5.2 Apparatus
Weighing bottle;
Sintered glass crucible: 3\;
Oven: (105±2)℃;
Buchner suction filter bottle: 100mL.
4.5.3 Determination steps
Dry the sintered glass crucible to constant weight (accurate to 0.0002g) at 105℃, accurately weigh 20g of sample (accurate to 0.01g), rinse it into a measuring cylinder with 200mL of water, cover it with a stopper, and shake it vigorously to dissolve all soluble substances. Filter the solution through the sintered glass crucible, and wash the residue in the crucible with distilled water, washing it 3 times with 25mL each time. Dry the sintered glass and the residue in a 105℃ oven to constant weight (accurate to 0.0002g). 4.5.4 Calculation
The mass percentage of water-insoluble matter X2 shall be calculated according to formula (2): 276
Wherein: mi
HG/T 2467.6-1996
m-mo × 100
The mass of sintered glass and residue after constant weight, 8; The mass of sintered glass after constant weight, g;
The mass of the sample, g.
4.5.5 Allowable difference:
The difference between two parallel determination results shall not be greater than·%. 4.6 Determination of pH value
Perform according to GB/T1601.
4.7 Dilution stability test
4.7.1 Reagents and instruments
Standard hard water: 342mg/L;
Vacuum: 100 mL;
Constant temperature water bath: (30±1)℃ or (20±1)℃. 4.7.2 Test steps
(2)
Pipette 5mL of the sample and place it in a 100mL volumetric tube. Dilute to the mark with standard hard water and mix well. Place the volumetric tube in a (30±1)℃ constant temperature water bath and let it stand for ·h. If the dilution is uniform and there is no precipitate, it is qualified. 4.8 Low temperature stability test
4.8.1 Method Summary
The sample is kept at 0℃ for 1 hour, and the presence of precipitates is observed. The sample is stored at 0℃ for 7 days, and the solid precipitates are precipitated by centrifugation, and the volume is recorded. 4.8.2 Instruments
Refrigerator: maintained at (0±1)℃,
Centrifuge tube: 100mL, with the scale at the bottom of the tube accurate to 0.05mL; Centrifuge: Matching the centrifuge tube.
4.8.3 Test Steps
Take 100±1.0mL of the sample and add it to the centrifuge tube, cool it to (0±1)℃ in the refrigerator, and keep the centrifuge tube and its contents at (0±1)℃ for 1 hour, stirring once every 15 minutes for 15 seconds each time, and check and record the presence of precipitates. Put the centrifuge tube back into the refrigerator and continue to place it at (0±1)℃ for 7 days. After 7 days, take out the centrifuge tube, let it stand for 3 hours at room temperature (not exceeding 20℃), and centrifuge for 15 minutes (the relative centrifugal force at the top of the tube is 500~~600G, G is the acceleration of gravity). Record the volume of the precipitate at the bottom of the tube (accurate to 0.05mL). The precipitate is qualified if it does not exceed 0.3mL.
4.9 Thermal storage stability test
4.9.1 Apparatus
Constant temperature box (or constant temperature water bath): (54±2)℃; bottle (or glass bottle with stopper that can still be sealed at 54℃): 50mL, medical syringe: 50mL. Www.bzxZ.net
4.9.2 Test steps
Use a syringe to inject about 30mL of sample into a clean bottle (avoid the sample contacting the bottleneck), place the bottle in an ice salt bath to cool, and seal it with a high temperature flame (to avoid solvent volatilization). Seal at least 3 bottles and weigh them separately. Place the sealed ampoule in a metal container, and then place the metal container in a (54 ± 2) ℃ constant temperature box (or constant temperature water bath) for 14 days. Take out the ampoule, wipe the outside clean and weigh it separately. For the samples with no change in mass, test the specified items within 24 hours (when writing specific product standards, the judgment principle for the qualified heat storage stability test should be specified).
) The inspection and acceptance of products
shall comply with the relevant provisions of GB/T1604. For the processing of limit values, the rounded value comparison method shall be adopted. 277
5 Marking, labeling, packaging, ironing and transportation
HG/T 2467. 6--1996
….. (generic name) The marking, labeling and packaging of the aqueous solution shall comply with the relevant provisions of GB3796, and shall have the production license (promotion certificate) number and trademark.
5.2 Prepare it based on the specific packaging conditions of each production and processing plant. 5.3 Other forms of packaging may be used according to user requirements or order agreements, but they must comply with the relevant requirements of GB3796. 5.4 Packages should be stored in ventilated and dry warehouses. 5.5 During storage and transportation, prevent moisture and sunlight, do not mix with food, seeds, and feed, avoid contact with skin and eyes, and prevent inhalation through the mouth and nose. 5.6 Safety: In addition to the corresponding toxicity signs, the instructions for use or packaging containers should also include toxicity instructions, poisoning symptoms, detoxification methods and emergency compress measures.
5.7 Warranty period: Under the specified storage and transportation conditions, the warranty period of ... (generic name) emulsion is at least 2 years from the date of production. During the warranty period,
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