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ISO 7554-3:2026 Surgical instruments — Terms, measuring methods and test methods — Part 3: Test methods

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ISO 41002:2026 Facility management — Development of the facility management organization

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ISO 39004:2026 Road traffic safety — Good practice for service providers using digital platform

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ISO 3856:1984

ISO 3856:1984 Paints and varnishes – Determination of “soluble” metal content – Part 4: Determination of cadmium content – Flame atomic absorption spectrometric method and polarographic method

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SKU: 39b493493cdc Category:

Description

The principle of the AAS method consists in inspiration of the test solution into an acetylen/air flame. Measurement of the absorption of the selected spectral line emitted by a cadmium hollow-cathode or cadmium discharge lamp, in the region of 228,8 nm. The principle of the polarographic method consists in electrolysis of the test solution in a polarographic cell measurement of the corresponding heigth of the potential step. The method are applicable to coating materials having “soluble” cadmium contents in the range of about 0,05 % (m/m) to 5 % (m/m). The AAS method should be used as the referee method in cases of dispute. This second edition cancels and replaces ISO 3856/4-1980.

Edition

2

Published Date

1984-10-01

Status

PUBLISHED

Pages

6

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

The principle of the AAS method consists in inspiration of the test solution into an acetylen/air flame. Measurement of the absorption of the selected spectral line emitted by a cadmium hollow-cathode or cadmium discharge lamp, in the region of 228,8 nm. The principle of the polarographic method consists in electrolysis of the test solution in a polarographic cell measurement of the corresponding heigth of the potential step. The method are applicable to coating materials having "soluble" cadmium contents in the range of about 0,05 % (m/m) to 5 % (m/m). The AAS method should be used as the referee method in cases of dispute. This second edition cancels and replaces ISO 3856/4-1980.

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