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>ISO Standards>ISO 2218:1972-Crude sodium borates for industrial use-Determination of loss in mass after heating at 900 degrees C-Buythis standard
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immediate downloadReleased: 1972
ISO 2218:1972-Crude sodium borates for industrial use-Determination of loss in mass after heating at 900 degrees C-Buythis standard

ISO 2218:1972

Crude sodium borates for industrial use

CURRENCY
42 EUR
Standard´s number:ISO 2218:1972
Pages:1
Edition:1
Released:1972
Language:English
DESCRIPTION

ISO 2218:1972


In the case of anhydous salts, the weighing of the test portion is carried out directly into platinum crucible. Transfering of the crucible in a muffle furnace, maintained at (900 +- 50) °C. In case of hydrated sals, the weighing is also carried out directly; the test porion is previously heated in the flame of a Bunsen burner. Covering and placing of the crucible so that the Bunsen flame plys on its lid. Subsequent transfer of the covered crucible to the muffle furnace. Calculation of the loss in mass by difference after heating.
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