Determination of precious metal in metal support catalytic converter for motorcycles
1 Scope
This standard specifies the preparation of test solution of precious metal elements such as platinum (Pt), palladium (Pd) and rhodium (Rh) in metal support catalytic converter for motorcycles (including mopeds) and the determination by inductively coupled plasma-atomic/optical emission spectrometry (ICP-OES/AES), inductively coupled plasma mass spectrometry (ICP-MS) and (atomic absorption spectrometry) AAS.
It is applicable to the determination of precious metal in metal support catalytic converter for motorcycles.
2 Normative references
The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 6682 Water for analytical laboratory use - Specification and test methods
GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values
JJG 694 Verification regulation of atomic absorption spectrophotometer
JJG 768 Verification regulation of emission spectrometer
3 Terms and definitions
For the purpose of this standard, the following terms and definitions apply.
3.1
catalytic converter
device mainly composed of enclosure, metal support and catalyst, and using catalysts to reduce the contents of hydrocarbons, carbon monoxide and nitrogen oxides in exhaust gas
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Reagents and materials
5 Apparatuses
6 Test solution preparation
7 Analyses and test
8 Result calculation
