719290

ISO 6374:1981

Cryolite, natural and artificial, and aluminium fluoride for industrial use -- Determination of phosphorus content -- Atomic absorption spectrometric method after extraction

standard by International Organization for Standardization , 10/01/1981

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Full Description

Specifies a method based on the fusion of a test portion with sodium carbonate and boric acid and dissolution in perchloric acid solution, followed by formation of the ammonium molybdophosphate complex and extraction of the complex with isobutyl acetate. The solution is absorbed into an acetylene/dinitrogen monoxide flame and the molybdenum, and hence the phosphorus, is determined by measuring the absorbance of the 379,8 nm line emitted by a molybdenum hollow-cathode lamp.

 

Product Details

Published:
10/01/1981
Number of Pages:
4
File Size:
1 file , 360 KB
Same As:
BS 4993-10:1983
Note:
This product is unavailable in Ukraine, Russia, Belarus