ASTM F1165-20 用于测量透明部件中多个图像的角位移的标准测试方法.pdf文档页数:4文档大小:1.64MB文档格式:pdf This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on
GB/T5009.11-2003 食品中总砷及无机砷的测定.pdf文档页数:14文档大小:574.64KB文档格式:pdf ICS67.040 C53 GB 中华人民共和国国家标准 GB/T5009.11—2003 代替GB/T5009.11-1996 食品中总砷及无机砷的测定 Determination of total arsenic and abio-arsenic in foods 2003-