ISO 7252-1984 – Determination of total mercury content in paints and varnishs-flame atomic absorption spectrometry
A Preface
ISO (International Organization for Standardization) is a global alliance of national standards bodies (ISO member bodies). The development of international standards is usually carried out through ISO technical committees. Each member institution interested in a subject on which a technical committee has been established has the right to be represented in the committee. Government and non-governmental international organizations that liaize with standardization organizations are also involved in this work.
Draft international standards adopted by technical committees are circulated to member bodies for approval before they are accepted as international standards by the ISO Council. They are approved according to ISO procedures that require at least 75% approval by voting member institutions.
The international standard ISO7252 was developed by Technical committee ISO/TC 35, Paints and varnishments.
ISO 7252-1984 – Determination of total mercury content in paints and varnishs-flame atomic absorption spectrometry
Scope and field of application
This standard describes a flameless atomic absorption spectrometry method for the determination of total mercury in paints and related products.
The method is applicable to products with a total mercury content in the range of approximately 0.01% to 0.5% (m/m).
Note – This method is also applicable to products with a total mercury content of more than 0.5% (m/m), provided that the number of reagents and test parts is changed appropriately.
2 Reference Materials
ISO 385/1, laboratory glassware — Burettes — Part 1: General requirements. 1)
ISO 648, Laboratory glassware — Single label pipettes.
ISO 1042, Laboratory glassware — Single-labeled volumetric flasks.
ISO 1512, Paints and varnishes – Sampling.
ISO 1513, Paints and varnishes – Examination and preparation of test samples.
ISO 3696, Laboratory water use – Specification.2)
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