QC/T 943-2013 in English

1 Scope

This standard specifies test methods of lead and cadmium content in automobiles materials.

"X-ray fluorescence spectrometry" is applicable to screening and fast determining the lead and cadmium content in automobiles materials.

"Optical emission spectrometric method for determination of lead and cadmium in steel and iron, copper and copper alloy, and aluminum and aluminum alloy materials" is applicable to quantitative determination of lead and cadmium content in steel and iron, copper and copper alloy, and aluminum and aluminum alloy rod or bulk materials in automobiles materials.

"Atomic absorption spectrometry, inductively coupled plasma atomic emission spectrometry or inductively coupled plasma mass spectrometry for determination of lead and cadmium content in automobiles materials" is applicable to quantitative determination of lead and cadmium content in automobiles materials.

2 Normative References

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 602 Chemical Reagent–Preparations of Standard Solutions for Impurity
GB/T 4336-2002 Standard Test Method for Spark Discharge Atomic Emission Spectrometric Analysis of Carbon and Low-Alloy Steel (Routine Method)
GB/T 7999-2007 Optical Emission Spectrometric Analysis Method of Aluminum and Aluminum Alloys
GB/T 8170 Rules of Rounding off for Numerical Values & Expression and Judgment of Limiting Values
GB/T 20066 Steel and Iron - Sampling and Preparation of Samples for the Determination of Chemical Composition
GB/T 30512-2014 Requirements for Prohibited Substances on Automobiles
GB/T 21277-2007 Rapid Screening of Lead Mercury Chromium Cadmium and Bromine of Regulated Substances in Electrical and Electronic Equipment—X-ray Fluorescence Spectrometry
YS/T 482-2005 Methods for Analysis of Copper and Copper Alloys - the Atomic Emission Spectrometry
IEC 62321:2008 Ed.1.0 Electrotechnical Products - Determination of Levels of Six Regulated Substances (Lead, Mercury, Cadmium, Hexavalent Chromium, Polybrominated Biphenyls, Polybrominated Diphenyl Ethers)

3 X-ray Fluorescence Spectrometry

3.1 Principle

Put the prepared sample into the sample room of X-ray fluorescence spectrometry; carry out X-ray fluorescence spectrometric analysis on the lead and cadmium content in the sample according to the analysis mode selected, and judge whether the lead and cadmium content conform to the screening limit, and whether accurate determination is necessary.

3.2 Reagents and materials

3.2.1 Boric acid: analytically pure, baked for 1h at 105℃, and stored in the dryer.

3.2.2 Standard material containing lead and cadmium elements.

3.3 Apparatus

3.3.1 X-ray fluorescence spectrometer.

3.3.2 Cutter.

3.3.3 Grinding equipment: pulverizer or grinder.

3.3.4 Tablet press: with a working pressure not less than 20MPa.

Foreword i
Introduction ii
1 Scope
2 Normative References
3 X-ray Fluorescence Spectrometry
4 Optical Emission Spectrometric Method for Determination of Lead and Cadmium in Steel and Iron, Copper and Copper Alloy, and Aluminum and Aluminum Alloy Materials
5 Atomic Absorption Spectrometry, Inductively Coupled Plasma Atomic Emission Spectrometry or Inductively Coupled Plasma Mass Spectrometry for Determination of Lead and Cadmium
6 Test Report
Annex A (informative) Instrument Working Condition