EN ISO 9020:1998 Binders for Paints and Varnishes - Determination of Free-Formaldehyde Content of Amino Resins - Sodium Sulfite Titrimetric Method ISO 9020: 1994, Including Technical Corrigendum 1: 1996 was changed to EN ISO 11402:2005 Phenolic, amino and condensation resins - Determination of free-formaldehyde content (ISO 11402:2004).
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