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GB/T 5009.36-2003Method for analysis of hygienic standard of grains (English PDF)

粮食卫生标准的分析方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

August 11, 2003

Implementation date

January 1, 2004

Scope

GB/T 5009.36-2003 is the English-translated version of 粮食卫生标准的分析方法.

GB/T 5009.36-2003 is the Chinese standard "Method for analysis of hygienic standard of grains". Its scope clause reads: This standard specifies method for analysis of various hygienic indexes of unprocessed grain and processed grain.

This standard is applicable to the analysis of the hygienic indexes of malathion, phorate, fenitrothion, fenthion, DDVP, dimethoate, parathion, phosphide, cyanide, chloropicrin, carbon disulfide, arsenic, mercury, HCH, DDT, aflatoxin B1, cadmium, fluorine, stramonium seed, ergot, ethylene dibromide, heptachlor, aldrin, dieldrin, etc. in unprocessed grain and processed grain. Its clauses include organoleptic inspection; physical and chemical inspection.

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Document preview — GB/T 5009.36-2003

National Standard of the People's Republic of China

ICS
67.040
Classification
C 53
Replacing
GB/T 5009.36-1996

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • Foreword i
  • 1 Scope
  • 2 Normative References
  • 3 Organoleptic Inspection
  • 4 Physical and Chemical Inspection

1 Scope

This standard specifies method for analysis of various hygienic indexes of unprocessed grain and processed grain.

This standard is applicable to the analysis of the hygienic indexes of malathion, phorate, fenitrothion, fenthion, DDVP, dimethoate, parathion, phosphide, cyanide, chloropicrin, carbon disulfide, arsenic, mercury, HCH, DDT, aflatoxin B1, cadmium, fluorine, stramonium seed, ergot, ethylene dibromide, heptachlor, aldrin, dieldrin, etc. in unprocessed grain and processed grain.

2 Normative References

The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.

GB/T 5009.11 Determination of Total Arsenic and Abio-arsenic in Food

GB/T 5009.15 Determination of Cadmium in Foods

GB/T 5009.17 Determination of Total Mercury and Organic-mercury in Foods

GB/T 5009.18 Determination of Fluorine in Foods

GB/T 5009.19 Determination of HCH and DDT Residues in Foods

GB/T 5009.20 Determination of Organophosphorous Pesticide Residues in Foods

GB/T 5009.22 Determination of Aflatoxin B1 in Foods

3 Organoleptic Inspection

The grains shall possess color, luster and smell as that of the normal ones, without mould and deterioration.

4 Physical and Chemical Inspection

4.1 Malathion

4.1.1 Gas chromatography

Operate according to GB/T 5009.20.

4.1.2 Cu-complex compound colorimetry
4.1.2.1 Theory

Extract the malathion with organic solvent, hydrolyze it with sodium hydroxide during which process dimethyl phosphorodithioate is generated to react with copper salt to generate yellow complex. Carry out quantative determination by comparing with standard series.

In this method, the detection limit is 1.25 mg/kg if the sampling amount is 20g.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

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Editions of GB/T 5009.36

EditionTitleRevisionStatus
GB/T 5009.36-2003Method for analysis of hygienic standard of grainscurrent editionCurrent
GB/T 5009.36-1996Method for analysis of hygienic standard of grainsprevious editionSuperseded

This page sells the current edition, GB/T 5009.36-2003. Earlier editions are listed for reference only.

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