DS/EN ISO 11402/AC-2006

Phenolic, amino and condensation resins - Determination of free-formaldehyde content

DS/EN ISO 11402/AC-2006 发布历史

This standard specifies three methods for determining the free-formaldehyde content in thefollowing:a) 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.b) 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

DS/EN ISO 11402/AC-2006由丹麦标准化协会 DK-DS 发布于 2006-07-27，并于 2006-07-27 实施。

DS/EN ISO 11402/AC-2006在国际标准分类中归属于: 83.080.10 热固性塑料。

DS/EN ISO 11402/AC-2006的历代版本如下：

• 2006年07月27日 DS/EN ISO 11402/AC-2006

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标准号

DS/EN ISO 11402/AC-2006

发布日期

2006年07月27日

实施日期

2006年07月27日

废止日期

无

国际标准分类号

83.080.10

发布单位

DK-DS

适用范围

This standard specifies three methods for determining the free-formaldehyde content in thefollowing:a) 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.b) 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