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NS
NS EN ISO 9397 : 1ED 1997

NS EN ISO 9397 : 1ED 1997

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

PLASTICS - PHENOLIC RESINS - DETERMINATION OF FREE-FORMALDEHYDE CONTENT- HYDROXYLAMINE HYDROCHLORIDE METHOD

Superseded date

27-06-2005

Published date

12-01-2013

Publisher

Norwegian Standards (Norges Standardiseringsforbund)

Defines a method for the chemical determination of free formaldehyde in phenolic resins by potentiometric titration, in aqueous or organic solution. Applies to resins having free-formaldehyde contents not in excess of 15% (m/m). Not for use when hexamethylenetetramine is present. ALSO NUMBERED AS BS 2782 PART 4 METHOD 451N 1997

DocumentType
Standard
PublisherName
Norwegian Standards (Norges Standardiseringsforbund)
Status
Superseded

Standards Relationship
BS EN ISO 9397:1997 Identical
ISO 9397:1995 Identical
DIN EN ISO 9397:1997-05 Identical
I.S. EN ISO 9397:1997 Identical
EN ISO 9397 : 1997 Identical

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