GB/T 22178-2021Oxadiazon emulsifiable concentrates (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1. Structure and Drafting Rules of Standardization Documents" drafted.

This document replaces GB/T 22178-2008 "Oxadiazon EC", compared with GB/T 22178-2008, except for structural adjustment and editorial In addition to the changes, the main changes are as follows:

--- Revised the mass fraction index of oxadiazon from 25.5 1.5-1.5% to 26.0 1.3-1.3% (see 4.2, 3.2 of the:2008 edition);

--- Increased the indicators and test methods of persistent foaming control items (see 4.2 and 5.9).

--- Deleted the packed column gas chromatography analysis method introduced in the appendix (see Appendix A of the:2008 edition).

1 Scope

This document specifies the technical requirements, test methods, inspection rules, acceptance and quality assurance period of oxadiazon EC, as well as signs, labels, packaging packaging and storage.

This document is applicable to the quality control of oxadiazon EC products, and can also be used as a guide for trade, conformity assessment and management activities between supply and demand. in accordance with.

Note: See Appendix A for other names, structural formulas and basic physicochemical parameters of oxadiazon.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB/T 1600-2021 Method for Determination of Moisture of Pesticide

GB/T 1601 Determination method of pH value of pesticides

GB/T 1603 Method for Determination of Stability of Pesticide Emulsion

GB/T 1604 Rules for the acceptance of commercial pesticides

GB/T 1605-2001 Sampling method for commercial pesticides

GB 4838 Pesticide EC Packaging

GB/T 8170-2008 Numerical Rounding Rules and Representation and Judgment of Limit Values

GB/T 19136-2021 Determination method for thermal storage stability of pesticides

GB/T 19137-2003 Determination method for low temperature stability of pesticides

GB/T 28137 Determination method for persistent foaming of pesticides

GB/T 32776-2016 Determination method of pesticide density

3 Terms and Definitions

There are no terms and definitions that need to be defined in this document.

4 Technical requirements