HG/T 2467.4-1996 Specification for the preparation of pesticide powder product standards
Some standard content:
HG/T 2467. 4--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 the revision of this standard are as follows:
1. Add a preface and determine the main contents that the preface should include; 2. Change the title of Chapter 1 from "Subject Content and Scope of Application" to "Scope"; 3. Add a prescribed introduction before citing the standard; 4. Cancel the chapter on product classification;
5. Change the title of Chapter 3 from "Technical Requirements" to "Requirements"; 6. Cancel the chapter on inspection rules, change the sampling method in 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 Chapter 5 of the revised version; 8. Some parts of the original standard have also been modified and supplemented. For example, it is 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 the Shenyang Chemical Industry Research Institute of the Ministry of Chemical Industry. This standard was drafted by the Shenyang Chemical Industry Research Institute of the Ministry of Chemical Industry. The main drafters of this standard: Hou Yukai, Wang Xuecheng, Zhao Xinxin , Yang Jian, Lou Shaowei. 260
HG/T2467.4—1996
1. Information on the special part
Contents that should be included in the foreword of the product standard
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 with the adopted object and brief reasons; explain the changes in important technical contents from the previous version; explain the relationship with other standard documents or other documents; the requirements for the implementation of the transition period Request; Explanation 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 information
This standard is proposed by.
This standard is managed by.
Drafting unit of this standard: When necessary, the responsible drafting unit and participating drafting units can be specified. Main drafters of a standard: Generally no more than 5 people. 261
Chemical Industry Standard of the People's Republic of China
Standard for the preparation of pesticide powder product standards
HG/T 2467. 4-1996
This standard specifies the specification for the preparation of pesticide powder 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:
Phase Molecular weight (measured by 19×X× international relative atomic mass): Biological activity: (insecticide, acaricide, fungicide, herbicide, etc.) 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) powder. This standard applies to ·· (common name) powder processed from (name) original drug, filler and necessary auxiliary agents that meet the standard. 2 Referenced standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and all parties using this standard should explore the possibility of using the latest version of the following standards. The order of citing 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 standard numbers; standards of different industries should be arranged in alphabetical order of standard codes. GB/T1600-79 (89) Determination of moisture content in pesticides 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
GB/T4946-85 Terminology for gas chromatography
GB/T16150--1995 Pesticide powders 3.1 Appearance: It should be a powder that flows freely from the sphere and should not have lumps. 3.2·(Common name) Powders should meet the requirements in Table 1. *** (avoid using the name) Powder control item index table 1
** (common name) content.%
" (harmful impurity name) content, %
Content: %
pH value range
Fineness (through 75um test sieve), %
Hot storage stability
(or specified range)
The listed items are not exhaustive, nor are they required to be included in any powder standard. They can be increased or decreased according to the actual situation of different pesticide products.
Hot storage stability test, at least once a month times. Test method
4.1 Sampling
Carry out in accordance with the "Sampling of Powders and Wettable Powders" method in GB/T1605. Use the random number table method to determine the sampling packages; the final sampling volume should generally be no less than 250%
4.2 Identification test
Prepare with reference to 4.2 in HG/T2467.1 (before the identification test, the active ingredient should be extracted first). 4.3
(Determination of the content of generic name
4.3.1 Method summary (taking the high performance liquid chromatography internal standard method as an example) The sample is dissolved in..., With · as internal standard and mobile phase, a stainless steel column filled with ·…… and a …· detector are used to separate and determine · (generic name) in the sample by high performance liquid chromatography. 4.3.2 Reagents and solutions
Reagents (specific name)
(generic name) Standard sample: known content, 2%; Internal standard ...., should not contain impurities that may interfere with the analysis; Internal standard solution: (specify the specific preparation and storage methods) 4.3.3 Instruments
High performance liquid chromatograph with * wavelength external detector, chromatography data processor,
Chromatographic column mmX.mm (id) stainless steel column, filled with filler, μm injector: 5061.
sample.3.4 High-performance liquid chromatography operating conditions
mobile phase······.
flow rate: .mL/min;
column temperature.℃;
detection wavelength: nm;
injection volume·uL;
detector sensitivity (AUFS)
retention time (with typical high-performance liquid chromatogram): .(common name).min;
internal standard min;
HG/T 2467. 4--1996
The above operating parameters are typical. The given operating parameters can be appropriately adjusted according to the characteristics of the instrument in order to obtain the best results. 4.3.5 Determination steps
a) Preparation of standard solution
Written in accordance with the specific preparation method.
b) Preparation of sample solution
Written in accordance with the specific preparation method.
c) Determination
Under the above operating conditions, after the baseline of the instrument is stable, continuously inject several needles of standard solution, calculate the relative response value of each needle, and when the relative response value of two adjacent needles changes by less than %, perform the determination in the order of standard solution, sample solution, sample solution, and standard solution. 4.3.6 Calculationbzxz.net
Average the ratio of the peak area (peak height) of (common name) to the internal standard in the two sample solutions and the two standard solutions before and after the sample. The mass percentage content X of (common name) is calculated according to formula (1): Xi = r2:m .P
ri·m2
Where: ri
In the standard solution, the average value of the ratio of the peak area (peak height) of (common name) to the internal standard; In the sample solution, the average value of the ratio of the peak area (peak height) of (common name) to the internal standard; The mass of the (common name) standard, g;
m2—the mass of the sample, g;
P—the mass percentage content of (common name) in the standard. It is also possible to calculate the correction factor first and then calculate the content of the active ingredient in the sample according to the provisions of GB/T4946. 4.3.7 Allowable difference
The difference between two parallel determination results shall not be greater than %;... (name of harmful impurities) content determination
Write according to the specific determination method.
4.5 Determination of moisture
Carry out according to the azeotropic distillation method in GB/T1600. 4.6 Determination of pH value
Carry out according to GB/T1601.
4.7 Determination of fineness
Carry out according to the dry sieving method in GB/T16150 (if it is damp, it can be dried). 4.8 Hot storage stability test
4.8.1 Method summary
Through the pressurized hot storage test, the product is aged rapidly and the changes in the performance of the product stored at room temperature are predicted. 4.8.2 Apparatus
Beaker: 250mL. Inner diameter 6.0~~6.5cm; 264
·(1)
HG/T 2467.4—1996
Disc: The diameter should match the beaker and produce an average pressure of 2.45kPa. 4.8.3 Test steps
Put 20g of sample into the beaker without any pressure, so that it is spread into a smooth and uniform layer of equal thickness. Press the disc on the sample, place the beaker in an oven, and store at...℃ for d. Take out the beaker, take out the disc, put it in a desiccator, and let the sample cool to room temperature. Within 24h, complete the determination of items such as the content of active ingredients (when writing specific product standards, the judgment principle for the qualified heat storage stability test should be specified). 4.9 Inspection and acceptance of products
Should comply with the relevant provisions of GB/T1604. For the processing of limit values, the rounded value comparison method is adopted. 5 Marking, labeling, packaging, storage and transportation
5.1 The marking, labeling and packaging of (common name) powders shall comply with the relevant provisions of GB3796 and shall have the production license (production permit) number and trademark.
5.2 It shall be compiled based on the specific packaging regulations of each production and processing plant. 5.3 Other forms of packaging may be used according to user requirements or ordering agreements, but they shall comply with the relevant requirements of GB3796. 5.4 Packages shall be stored in ventilated and dry warehouses. 5.5 During storage and transportation, strictly 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 eye-catching toxicity mark, the instruction manual or packaging container should also have toxicity instructions, precautions for use, symptoms of poisoning, detoxification methods and first aid measures. 5.7 Warranty period: Under the specified storage and transportation conditions, the warranty period of (generic name) powder is at least 2 years from the date of production. During the warranty period,
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