ISO 6503:1984
Current
Paints and varnishes — Determination of total lead — Flame atomic absorption spectrometric method
Hardcopy , PDF
English, French
10-01-1984
The method is principle to coating materials having lead contents in the range of about 0,01 % (m/m) to 2 % (m/m), may also be applicable to products with a total lead content of more than 2 % (m/m) when the requirements of precision does not exceed the specified values. two methods are given. The principle of the dry ashing method consists in evaporation of a test portion to dryness and ashing at 475 C and extraction of any lead in the residue with hydrochloric acid; that of the wet oxidation method consists in wet oxidation of a test portion with a mixture of sulfuric acid and hydrogen peroxide or with sulfuric acid and nitric acid and extraction of any lead in the residue with EDTA and ammonia solution.
| Committee |
ISO/TC 256
|
| DevelopmentNote |
Also numbered as BS 3900-B4(1986) (07/2005)
|
| DocumentType |
Standard
|
| Pages |
6
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Standards | Relationship |
| DIN ISO 6503:1985-08 | Identical |
| SAC GB/T 13452.1 : 1992 | Identical |
| JIS K 5601-3-1:1999 | Identical |
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