GB/T 21198.4-2007
Determination of precious metals in precious metals jewellery alloys.Method using ICP spectrometry.Part 4: 999‰ precious metals jewellery alloys.Determination of precious metals.Difference method (English Version)

Standard No.
GB/T 21198.4-2007
Language
Chinese, Available in English version
Release Date
2007
Published By
General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Status
 2020-05
Replace By
GB/T 38145-2019
Latest
GB/T 38145-2019
Scope
This part of GB/T 21198 specifies the method to determine the lead content in platinum alloy jewelry, the palladium content in palladium alloy jewelry, and the gold content in gold alloy jewelry by measuring the content of impurity elements in 999‰ precious metal alloy jewelry. This part applies to precious metal alloy jewelry with a content of 999‰.

GB/T 21198.4-2007 history

  • 2019 GB/T 38145-2019 High content precious metals jewellery alloys—Determination of gold，platinum and palladium—Difference method using inductively coupled plasma optical emission spectroscopy
  • 2007 GB/T 21198.4-2007 Determination of precious metals in precious metals jewellery alloys.Method using ICP spectrometry.Part 4: 999‰ precious metals jewellery alloys.Determination of precious metals.Difference method

GB/T 21198.4-2007 Determination of precious metals in precious metals jewellery alloys.Method using ICP spectrometry.Part 4: 999‰ precious metals jewellery alloys.Determination of precious metals.Difference method was changed to GB/T 38145-2019 High content precious metals jewellery alloys—Determination of gold，platinum and palladium—Difference method using inductively coupled plasma optical emission spectroscopy.

Determination of precious metals in precious metals jewellery alloys.Method using ICP spectrometry.Part 4: 999‰ precious metals jewellery alloys.Determination of precious metals.Difference method

GB/T 21198.4-2007 -All Parts

GB/T 21198.1-2007 Determination of precious metals in precious metals jewellery alloys- Method using ICP spectrometry- Part 1: Platinum jewellery alloys- Determination of platinum-Method using a solution with yttrium as internal standard element GB/T 21198.2-2007 Determination of precious metals in precious metals j ewellery alloys.Method using ICP spectrometry.Part 2：Platinum jewellery alloys--Determination of platinum.Method using the intensity ratios of all minor constituents with reference to platinum GB/T 21198.3-2007 Determination of precious metals in precious metals jewellery alloys.Method using ICP spectrometry.Part 3: Palladium jewellery alloys.Determination of palladium.Method using a solution with yttrium as internal standard element GB/T 21198.4-2007 Determination of precious metals in precious metals jewellery alloys.Method using ICP spectrometry.Part 4: 999‰ precious metals jewellery alloys.Determination of precious metals.Difference method GB/T 21198.5-2007 Determination of precious metals in precious metals jewellery alloys.Method using ICP spectrometry.Part 5: 999‰silver jewellery alloys.Determination of silver.Difference method GB/T 21198.6-2007 Determination of precious metals in precious metals jewellery alloys-Method using ICP spectrometry-Part 6:Difference method


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