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STANDARD SAMPLES OF COAL FOR ESTIMATION OF ARSENIC CONTENT
Publication year - 1954
Publication title -
journal of the institute of brewing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.523
H-Index - 51
eISSN - 2050-0416
pISSN - 0046-9750
DOI - 10.1002/j.2050-0416.1954.tb06237.x
Subject(s) - coal , arsenic , citation , sampling (signal processing) , ashing , sample (material) , computer science , statistics , mathematics , chemistry , waste management , library science , engineering , telecommunications , chromatography , organic chemistry , physics , quantum mechanics , detector
The Case and British Standard Methods are both suitable for determination of arsenic in coal if attention is paid to the following points: sampling, avoidance of loss of volatile arsenic during ashing, control of humidity of gases passing through test papers, and purity of reagents. The Marsh method is also suitable in experienced hands. A standard check sample of coal is available to members of the Institute, and this—on the basis of a total of 212 estimations made in 9 laboratories—has been shown to contain 9.0 ±0.1 parts As 8 O 8 per million.