This standard was last reviewed and confirmed in 2021. Therefore this version remains current.
Hydrolysis of the product by boiling hydrochloric acid, and coagulation of the insoluble products by cooling. Separation by filtration, drying and isolation the wanted matter by solvent extraction. The method applies to contents less than 1,5 % (m/m).
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|std 1 40|
|std 2 40||Paper|
A standard is reviewed every 5 years
Stage: 90.93 (Confirmed)
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