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immediate downloadReleased: 1976-03-31
BS 4317-11:1976
Methods of test for cereals and pulses Determination of glycosidic hydrocyanic acid in pulses
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| Standard number: | BS 4317-11:1976 |
| Pages: | 10 |
| Released: | 1976-03-31 |
| ISBN: | 0 580 09112 0 |
| Status: | Standard |
DESCRIPTION
BS 4317-11:1976
This standard BS 4317-11:1976 Methods of test for cereals and pulses is classified in these ICS categories:
- 67.060 Cereals, pulses and derived products
This International Standard specifies a method for the determination of glycosidic hydrocyanic acid in pulses.
The method is generally applicable but may require modification if sulphides or certain other sulphur compounds are present. Conversely, if no such compounds are present, a mercurimetric titration procedure may be used, details of which are given in the Annex.
Method involving enzymic or acid hydrolysis of glycosides, steam distillation of hydrocyanic acid liberated and then determination of the acid quantity by direct titration using silver nitrate or by back titration using ammomium thiocyanate.