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ISO 6978:1992

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

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withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Natural gas Determination of mercury
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Withdrawn date

02-27-2019

Language(s)

English, French

Published date

08-20-1992

Two methods are specified: method A for higher mercury content (> 0,5 g/m^3) based on sampling at atmospheric pressure, absorption in potassium permangante solution, reduction of mercury ions, analysis by flameless atomic absorption spectrometry; method B for lower mercury content (10^- 3 g/m^3 to 1 g/m^3) based on sampling at atmospheric or higher pressure, adsorption on silver/gold, desorption, analysis by flameless atomic absorption spectrometry.

DocumentType
Standard
Pages
11
PublisherName
International Organization for Standardization
Status
Withdrawn
SupersededBy

Standards Relationship
BS 7678:1993 Identical

ASTM D 6350 : 2014 Standard Test Method for Mercury Sampling and Analysis in Natural Gas by Atomic Fluorescence Spectroscopy (Withdrawn 2023)

ISO 4793:1980 Laboratory sintered (fritted) filters — Porosity grading, classification and designation
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
ISO 641:1975 Laboratory glassware — Interchangeable spherical ground joints

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US$73.00
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