HG/T 2743.6-1996 Specification for the preparation of product standards for compound soluble concentrates of pesticides
Some standard content:
HG/T 2743.6--1996
The compound preparations scientifically mixed with different pesticides can greatly improve the efficacy, reduce toxicity and delay the emergence of resistance. Therefore, the development and application of compound preparations of pesticides are important ways to use pesticides rationally and effectively prevent and eliminate diseases, insects and weeds. At present, there are hundreds of compound preparations of pesticides in my country, but many varieties lack scientific experimental basis. The preparation of compound preparation standards is mostly chaotic and of varying levels. In order to standardize the preparation format of pesticide compound preparations and improve the standard level, this standard is formulated on the basis of GB/T1.1--1993 "Guidelines for Standardization Work Unit 1: Rules for Drafting and Presentation of Standards Part 1: Basic Provisions for Standard Preparation" and the industry standard ZBG23001-86 of the Ministry of Chemical Industry "Principles and Procedures for Naming Common Names of Pesticides", and on the basis of HG/T2467 "Format for Preparation of Pesticide Product Standards". Appendix A of this standard is the appendix of the standard. 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. The main drafters of this standard are: Hou Yukai, Wang Xuecheng, Lou Shaowei, Yang Jian, Zhao Xinxin.
HG/T 2743. 6—1996
Contents to be included in the preface of pesticide compound preparation product standards 1. Special part information
- The number and degree of adoption of international standards or foreign advanced standards, the differences and reasons with the adopted standards; the purpose and basis of standard drafting: the test comparison results of toxicity, toxicity and efficacy of compound preparations and each active ingredient of the compound preparation should be provided, and the degree of improvement of efficacy and reduction of toxicity of compound preparations should be explained; for revised standards, the revision points should be explained, the requirements for the transition period of standard implementation: the explanation of the abolition or replacement of all or part of other standard documents by this standard; indicating which appendices are standard appendices and which are indicative appendices. 2. Basic part information
This standard is 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. 320
Chemical Industry Standard of the People's Republic of China
Standard for the preparation of pesticide compound soluble concentrate product standards HG/T 2743.6—1996
This standard specifies the standard for the preparation of pesticide compound soluble concentrate product standards, and is applicable to the preparation of corresponding national standards, industry standards, local standards and enterprise standards for pesticide compound soluble concentrate products. Other names, structural formulas and basic physicochemical parameters of each active ingredient in this product are as follows: a)… (Generic name of active ingredient 1)
ISO generic name:
Trade name:
CIPAC digital code:
Chemical name:
Structural formula:
Empirical formula:
Relative molecular mass (calculated 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) b)… (Generic name of active ingredient 2)
Contents are the same as a.
c)… (Generic name of active ingredient 3)
Contents are the same as a.
1 Scope
This standard specifies the requirements, test methods, and marking, labeling, packaging, storage and transportation of (name of compound preparation) soluble concentrates. This standard applies to (name of compound preparation) soluble concentrates made by dissolving the technical drugs of ... (common name of active ingredient) ... (common name of active ingredient 2), (common name of active ingredient 3) and necessary adjuvants that meet the standards in a suitable organic solvent.
2 Cited 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 versions of the following standards. The order of arrangement of referenced standards is domestic first and then foreign; standards of all levels should be arranged step by step, with national standards first and then industry standards; standards of the same level are arranged in the order of standard numbers; standards of different industries are arranged in the alphabetical order of standard codes. GB/T1600—79(89) Determination of moisture content in pesticides GB/T1601--93 Determination of pH value in pesticides GB/T1604-1995 Acceptance rules for commercial pesticides 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 2743. 6--1996
GB/T1605-79(89) Sampling methods for commercial pesticides GB3796-83 General rules for pesticide packaging
HG/T2467-93 Format for writing pesticide product standards HG/T2743.1--1996 Specification for writing pesticide compound emulsifiable concentrate product standards ZBG23001--86 Principles and procedures for naming common names of pesticides 3 Requirements
3.1 Appearance: It should be a stable homogeneous liquid with no visible suspended matter or sediment. 3.2 (Name of compound preparation) Soluble concentrate shall meet the requirements of Table 1. Table 1 (Name of compound preparation) Soluble concentrate control items Index item
……(Generic name of active ingredient 1) content, %(Generic name of active ingredient 2) content, %
(Generic name of active ingredient 3) content, %
…(Name of harmful impurities) content, %
Water content, %
PH value range
Miscibility with water
Low temperature stability
Hot storage stability
(or specified range)
(or specified range)
(or specified range)
The listed items are not exhaustive, nor are they required to be included in all the standards for soluble concentrates of any pesticide compound. They can be increased or decreased according to the specific conditions of different pesticide compound products.
2 Low temperature stability and heat storage stability test, at least once every month. 4 Test method
4.1 Sampling
Carry out in accordance with the GB/T1605\sampling of emulsions and liquids. Use the random number table method to determine the sampled packages; the final sampling volume should generally be no less than 250 mL.
4.2 Identification test
Write in accordance with 4.2 of HG/T2743.1. 4.3 The determination of the content of (generic name of active ingredient 1) shall be written in accordance with the same determination method format in HG/T2467 and this standard. 4.4 The determination of the content of (generic name of active ingredient 2) shall be written in accordance with the same determination method format in HG/T2467 and this standard. 4.5…The determination of the content of (generic name of active ingredient 3) shall be written in accordance with the same determination method format in HG/T2467 and this standard. 4.6…The determination of the content of (name of harmful impurities) shall be written according to the specific determination method adopted.
4.7 Determination of moisture
Perform according to GB/T1600. Www.bzxZ.net
4.8 Determination of pH value
Carry out according to GB/T1601.
4.9 Miscibility with water
4.9.1 Reagents and instruments
Standard hard water: 342mg/L
Quantity: 100mL
4.9.2 Test steps
HG/T 2743. 6--- 1996
Use a pipette to draw 5mL of the sample, put it into a 100mL measuring cylinder, dilute it to the mark with standard hard water, and stir evenly. Place the dilution in a (30±1)℃ water bath and let it stand for h. The dilution is uniform and has no precipitate, which is qualified. 4.10 Low-excitation stability test
4.10.1 Method summary
Keep the sample at 0℃ for 1h, and observe whether there is any precipitate. Continue to store at 0℃ for 7d, centrifuge to settle the solid precipitate, and record its volume. 4.10.2 Instrument
Refrigerator: maintain (0±1)℃.
Centrifuge tube: 100mL, with the scale on the bottom of the tube accurate to 0.05mLCentrifuge: Matching with centrifuge tube.
4.10.3 Test steps
Take 100±1.0ml of sample and add it to a centrifuge tube. Cool it to (0±1)℃ in a refrigerator. Keep the centrifuge tube and its contents at (0±1)℃ for 1h. Stir once every 15min for 15s each time. Check and record whether there is any precipitate. Put the centrifuge tube back into the refrigerator and continue to release the volume at (0±1)℃ for 7d. After 7d, take out the centrifuge tube, let it stand for 3h at room temperature (not exceeding 20C), and separate it by high centrifugation for 15min (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 does not exceed 0.3mL is qualified.
4.11 Thermal storage stability test
4.11.1 Apparatus
Thermostatic box (or constant overflow water bath): (54±2)℃; Ampoule (or glass bottle with stopper that can still be sealed at 54℃): 50mL Medical syringe: 50mL.
4.11.2 Test steps
Use a syringe to inject about 30mL of sample into a clean ampoule (avoid the sample from contacting the bottleneck), place the ampoule in an ice salt bath to cool, and seal it with a high-temperature flame (avoid solvent volatilization). Seal at least 3 bottles and weigh them separately. Place the sealed ones in a metal container, and then place the metal container in a (54±2)℃ thermostatic box (or constant overflow water bath) for 14 days. Take out the ampoule, wipe it clean and weigh it separately. For the sample with no change in mass, inspect the specified items within 24 hours (when writing the specific product label, the criteria for judging whether the thermal stability test is qualified should be specified).
4.12 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 should be adopted. 5 Marking, labeling, packaging, and transportation
5.1 (Name of compound preparation) The marking, labeling and packaging of soluble concentrates shall comply with the relevant provisions of GB3796, and shall have the production license (production permit) number and trademark.
5.2 Prepare it in accordance with the specific packaging regulations of each production and processing plant. 323
HG/T 2743.6—1996
5.3 According to user requirements or ordering agreement, other forms of packaging can be used, 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, strictly prevent moisture and sunlight, do not mix with food, seeds, 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 have toxicity instructions, poisoning symptoms, detoxification methods and first aid measures.
5.7 Warranty period: Under the specified storage and transportation conditions, the warranty period of the soluble concentrate of ...·(name of compound preparation) is at least 2 years from the date of production. During the warranty period,.
HG/T2743.6—1996
Appendix A
(Appendix to the standard)
Principles for naming common names of pesticide compound preparations According to the basic principle of ZBG23001-86 "Principles and procedures for naming common names of pesticides" Article 1.2 "The common name of pesticide preparations (single or mixed) should include three parts, namely, the mass percentage of the active ingredient, the common name of the active ingredient and the dosage form. The common name of the mixed preparation can be composed of the prefixes or pronouns of the common names of the active ingredients", the common name of the pesticide compound preparations The naming is divided into three parts: one is the total content of each active ingredient in the compound preparation [mass percentage or g/L (20℃)], the second is the common name of the compound preparation, which is composed of the prefixes (or the first few characters) of the common names of each active ingredient. A dot is inserted between the prefixes (or the first few characters) to reflect how many components of the compound preparation it is; the order of each active ingredient should generally be determined by its content, with the higher one in front and the lower one in the back, or it can be ranked according to its contribution to the efficacy, with the one that contributes the most to the efficacy in the front; the third is the dosage form of the compound preparation, such as powder, emulsifiable concentrate, wettable powder, water-floating agent, etc. For example, 3% methyl 6-methoxy-1-thiamethoxam powder, 40% dimethoate emulsifiable concentrate, 20% cypermethrin emulsifiable concentrate, 50% polysulfur suspension, etc. If a synergist is added to the compound preparation, the synergist is not counted as an active ingredient, and the proportion it occupies does not enter the total content of the active ingredients, 325
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.