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ISO 11402:2004

Current
Current

The latest, up-to-date edition.

Phenolic, amino and condensation resins — Determination of free-formaldehyde content
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

03-03-2004

ISO 11402:2004 specifies three methods for determining the free-formaldehyde content in the following:

  1. Phenolic resins, by potentiometric titration in aqueous or organic solution (hydroxylamine hydrochloride procedure). The method is applicable to resins with free-formaldehyde contents up to and including 15 % by mass. For free-formaldehyde contents between 15 % by mass and 30 % by mass, it may be necessary to adjust the concentrations of the standard volumetric solutions used accordingly.
  2. Amino resins and furan resins (sulfite procedure). The method is applicable to resins resulting from the polycondensation of urea and melamine with formaldehyde and to furan resins resulting from the polycondensation of furfuryl alcohol with formaldehyde without further modification.
  3. Condensation resins (KCN procedure), including urea resins, furan resins, melamine resins and phenolic resins, as well as combinations and modifications of these resins.

The purpose of this International Standard is to establish recognized and useful determination procedures (for instance in order to check whether official regulations on the handling of hazardous workplace materials are observed).

The free-formaldehyde content determined in formaldehyde condensation resins using this International Standard represents the actual content at the time of the determination. The value bears no quantitative relationship to the free-formaldehyde content during or after processing.

DevelopmentNote
Supersedes ISO/DIS 11402, ISO 9020 and ISO 9397 (04/2004)
DocumentType
Standard
Pages
12
PublisherName
International Organization for Standardization
Status
Current
Supersedes

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BS EN ISO 10082:2000 Plastics. Phenolic resins. Classification and test methods
ISO 18611-2:2014 Ships and marine technology Marine NOx reduction agent AUS 40 Part 2: Test methods
ISO 9397:1995 Plastics Phenolic resins Determination of free-formaldehyde content Hydroxylamine hydrochloride method
BS EN ISO 9397:1997 Plastics. Phenolic resins. Determination of free-formaldehyde content. Hydroxylamine hydrochloride method
EN ISO 9397 : 1997 PLASTICS - PHENOLIC RESINS - DETERMINATION OF FREE-FORMALDEHYDE CONTENT - HYDROXYLAMINE HYDROCHLORIDE METHOD

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