GB/T 19719-2005

GB/T 19719-2005 首饰 镍释放量的测定 光谱法 （英文版）

Jewellery--Determination of the release of nickel--Method of spectrometry

2005-03-23

2005-09-01

13

12.00元

是

300.00元

Word/PDF

Contents
Foreword
1 Scope
2 Normative References
3 Principle
4 Reagents
5 Apparatus
6 Samples
6.1 Sample area
6.2 Sample preparation
6.3 Reference disc
7 Procedure
7.1 Preparation of test solution
7.2 Release procedure
7.3 Determination of nickel
7.4 Number of replicates
7.5 Blank tests
8 Calculations
8.1 Nickel release
8.2 Interpretation of results
9 Test Report
Annex A (Informative) Statistical uncertainty of the test procedure and interpretation of results
Annex B (Informative) Rules for production and preparation of reference material
Annex C (Informative) Identification and determination of sample area; and coating of non-significant areas
Annex D (Normative) Articles made from materials that can release small amounts of nickel
Annex E (Informative) Comparison table between this Standard and EN 1811: 1998
Annex F (Informative) Technical differences and reasons between this Standard and EN 1811: 1998
Bibliography

GB/T 19719 English Code