DIN EN ISO 3451-4:2023-04 塑料 - 灰分的测定 - 第 4 部分:聚酰胺 (ISO/DIS 3451-4:2023)
Plastics - Determination of ash - Part 4: Polyamides (ISO/DIS 3451-4:2023); German and English version prEN ISO 3451-4:2023 / Note: Date of issue 2023-03-03*Intended as replacement for DIN EN ISO 3451-4 (2001-08).