DIN EN ISO 3613:2020 金属和其他无机涂层 锌、镉、铝-锌合金和锌-铝合金上的铬酸盐转化膜 测试方法(ISO/DIS 3613:2020)
Metallic and other inorganic coatings - Chromate conversion coatings on zinc, cadmium, aluminium-zinc alloys and zinc-aluminium alloys - Test methods (ISO/DIS 3613:2020); German and English version prEN ISO 3613:2020