GB/T 18171-2017Chlorothalonil aqueous suspension concentrates (English PDF)

Foreword

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

This standard replaces GB/T 18171-2000 "chlorothalonil SC", compared with GB/T 18171-2000, the main technical changes as follows.

--- Increased by 54% specification;

--- 40% specification hexachlorobenzene index from not higher than 0.2g/kg to no higher than 0.02g/kg;

--- Added deca-biphenyl control index;

--- wet sieve test (through 45µm test sieve) from not less than 99% to wet sieve test (through 75µm test sieve) not less than 99.5%;

--- dumping dumping residue from not more than 5.0% to not more than 6.0%;

--- After the "hot storage appearance, chlorothalonil mass fraction, suspension rate, sieve still meet the standard requirements" to "after storage chlorothalonil mass fraction is not Lower than 97% before storage, the suspension rate still meets the standard requirements. "

1 Scope

This standard specifies the chlorothalonil suspending agent requirements, test methods and signs, labels, packaging, storage and delivery and guarantee period.

This standard applies to chlorothalonil by the original drug, suitable additives and fillers processed chlorothalonil SC.

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

GB/T 14825 pesticide suspension rate determination method

GB/T 16150 Pesticide powder, wettable powder fineness determination

Determination of heat storage stability of GB/T 19136 pesticides

GB/T 19137 Determination of low temperature stability of pesticides

Pesticide persistent foaming - Determination of GB/T 28137

GB/T 31737 pesticide dumping method

3 Requirements