The method consists in mineralizing of a test portion with sulphuric and nitrit acids, precipitating of the phosphorus as quinoline phosphomolybdate, drying and weighing of the precipitate. An alternative method of mineralizing is described in clause 10.
WITHDRAWN
ISO 2294:1974
95.99
Withdrawal of Standard
Jul 29, 2021
PUBLISHED
ISO 23776:2021
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