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ISO 6503:1984

Paints and varnishes — Determination of total lead — Flame atomic absorption spectrometric method

Oct 1, 1984

General information

90.93     Apr 2, 2024

ISO

ISO/TC 256

International Standard

87.040  

French   English  

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Scope

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.

Life cycle

NOW

PUBLISHED
ISO 6503:1984
90.93 Standard confirmed
Apr 2, 2024

National adoptions

SRPS ISO 6503:2010  
ISS

Paints and varnishes — Determination of total lead — Flame atomic absorption spectrometric method

90.93   Standard confirmed

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