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NEN EN 13539 : DRAFT 1999
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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LEATHER - CHEMICAL TESTS - DETERMINATION OF FORMALDEHYDE CONTENTS IN LEATHER
15-10-2003
12-01-2013
Describes two methods for the determination of free and released formaldehyde in leathers. One method is relatively simple with regard to the laboratory equipment (photometric method), while the other needs more sophisticated equipment (HPLC method). The second method is selective and not sensitive to coloured extracts.
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