EN ISO 9020:1998 色漆和清漆用粘合剂.胺类树脂的游离甲醛含量的测定.亚硫酸钠滴定法ISO 9020-1994,包括技术修改件1-1996
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