GB/T 9551-2017Chlorothalonil technical material (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 9551-1999 "chlorothalonil original drug", compared with GB/T 9551-1999, the main technical changes are as follows.

--- Appearance from "white to gray or light yellow powder, non-colored blocks" to "white powder";

--- Cancel grading, the provisions of chlorothalonil mass fraction of not less than 97.0%;

--- Hexachlorobenzene control indicators revised to not higher than 0.04g/kg;

--- Increased deca-biphenyl control index.

1 Scope

This standard specifies the chlorothalonil requirements, test methods and signs, labels, packaging, storage and acceptance period.

This standard applies to chlorothalonil and its impurities in the production of chlorothalonil consisting of the original drug.

NOTE Other names, structural formulas and basic physico-chemical parameters of chlorothalonil, hexachlorobenzene and deca-biphenyl are given in Appendix A.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 1601 Determination of pesticide pH value

GB/T 1604 commodity pesticide acceptance rules

Commercial pesticides sampling method

GB 3796 Pesticide packaging General

Laboratory use specifications and test methods for analysis GB/T 6682-2008

Representation and determination of rules for repair of numerical values and limit values GB/T 8170-2008

3 Requirements

4 Test methods

Safety Tips. The use of this standard staff should have practical experience in laboratory work. This standard does not point out all the safety issues.