GB/T 23549-2021Propiconazole 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 23549-2009 "Propiconazole EC", compared with GB/T 23549-2009, except for structural adjustment and editorial In addition to the changes, the main changes are as follows:

--- The mass fraction of propiconazole was revised from 25.0% to 25.0% and 50.0% (see 4.2, 3.2 of the:2009 edition).

--- The pH range is revised from 4.0 to 9.0 to 4.0 to 8.0 (see 4.2, 3.2 of the:2009 edition).

--- Increase persistent foaming control items (see 4.2, 3.2 of the:2009 edition).

---Increase the pH value measurement item in the thermal storage stability test (see 5.10).

1 Scope

This document specifies the technical requirements, test methods, acceptance and quality assurance period of propiconazole EC, as well as marking, labeling, packaging and storage and transportation.

This document is applicable to the quality control of propiconazole 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 propiconazole.

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