BSI BS 4279:1968

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Methods of test for urea

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BSI BS 4279:1968

Methods of test for urea

PUBLISH DATE 1968
BSI BS 4279:1968

METHODS OF TEST FOR UREA

Determination of total nitrogen, water, sulphated ash, iron, chloride, sulphate, and biuret;

Measurement of pH value, determination of buffer value,

Variation of pH in the presence of formaldehyde solution, and colour of urea-formaldehyde solution.

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