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SN/T 3941-2014 English PDF

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SN/T 3941-2014: Food contact materials. Metal materials. Determination of lead, cadmium, arsenic and antimony migration. Hydride generation atomic fluorescence spectrometry method
Status: Valid
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SN/T 3941-2014English239 Add to Cart 3 days [Need to translate] Food contact materials. Metal materials. Determination of lead, cadmium, arsenic and antimony migration. Hydride generation atomic fluorescence spectrometry method Valid SN/T 3941-2014

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Basic data

Standard ID SN/T 3941-2014 (SN/T3941-2014)
Description (Translated English) Food contact materials. Metal materials. Determination of lead, cadmium, arsenic and antimony migration. Hydride generation atomic fluorescence spectrometry method
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard X08
Classification of International Standard 67.250
Word Count Estimation 9,971
Date of Issue 4/9/2014
Date of Implementation 11/1/2014
Quoted Standard GB/T 602; GB/T 5009.63; GB/T 5009.72; GB/T 5009.81; GB/T 6682
Regulation (derived from) State inspection certification (2014) 210
Issuing agency(ies) General Administration of Customs
Summary This standard specifies the method of atomic fluorescence spectroscopy of metallic materials in contact with food of lead, cadmium, arsenic, and antimony hydride migration occurs. This standard applies to contact with food stainless steel containers, alum

SN/T 3941-2014: Food contact materials. Metal materials. Determination of lead, cadmium, arsenic and antimony migration. Hydride generation atomic fluorescence spectrometry method


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Food contact materials. Metal materials. Determination of lead, cadmium, arsenic and antimony migration. Hydride generation atomic fluorescence spectrometry method People's Republic of China Entry-Exit Inspection and Quarantine Standards Food Contact Materials Metal Determination of lead, cadmium, arsenic, and antimony migration of Hydride generation atomic fluorescence spectrometry cadmium, arsenicandantimonymigration- Issued on. 2014-04-09 2014-11-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Zhejiang Exit Inspection and Quarantine. The main drafters of this standard. Rudan, Wang Jianling, Wang Jun, Zou science right, Jiang Yongxiang, Zhao Hong Shan, Zhang Xiao radon, Bao Xiaoxia. Food Contact Materials Metal Determination of lead, cadmium, arsenic, and antimony migration of Hydride generation atomic fluorescence spectrometry Warning. Use of this standard shall have a person experiences regular laboratory work. This standard does not point out all possible security issues. Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.

1 Scope

This standard specifies the metallic materials in contact with food of lead, cadmium, arsenic, and antimony hydride migration occurs Atomic Fluorescence Spectrometry method. This standard applies to contact with food of stainless steel food containers, aluminum containers and utensils enamel utensils containers of lead, cadmium, arsenic and antimony migration Determination of the amount.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Preparation of standard solution of GB/T 602 Determination of impurities in chemical reagents Analysis Method GB/T 5009.63 hygienic standard of enamel for food containers GB/T 5009.72 analysis of aluminum food containers standard GB/T 5009.81 stainless analysis of hygienic standard of food containers Laboratory use specifications and test methods GB/T 6682 Analysis

3 Method summary

In acidic medium, the test solution and lead to pre-oxidant ferricyanide, cadmium first and sensitizer Co2 and thiourea, arsenic, and antimony first pre-reduction L- cysteine effect agent, and then with sodium borohydride to form the corresponding volatile components, respectively, by the carrier gas into the quartz electrothermal atomizer The atomization, the corresponding element in a special hollow cathode lamp irradiation, the corresponding ground state atoms are excited to high energy state, the deactivation to the ground state, the hair Characteristic wavelength emitted fluorescence, the fluorescence intensity is proportional to the corresponding elements in the element corresponding quantitative comparison with standard series.

4 Reagents and materials

Unless otherwise specified, reagents were pure class distinctions in the analysis used in the test water should be consistent with a water GB/T 6682 stipulated. 4.1 Glacial acetic acid (ρ = 1.05g/mL). 4.2 4% (mass concentration) acetic acid solution. Weigh 40g (accurate to 0.1g) in glacial acetic acid (4.1) in 1L flask with water to volume, Mix well. 4.3 hydrochloric acid (ρ = 1.19g/mL). 4.4 hydrochloric acid (199). HCl (4.3) 10mL, diluted with water to 1000mL. This solution is used for the determination of arsenic and antimony. 4.5 hydrochloric acid (298). HCl (4.3) 20mL, diluted with water to 1000mL. This solution is used for determination of cadmium.

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