标题: 哑铃厚度测量 [打印本页] 作者: ksxtye 时间: 2012-2-2 12:49 标题: 哑铃厚度测量 ＵＬ１５８１中有规定的：在标志线处，标志线内６ＭＭ及１９ＭＭ处共测试４点取最小值－－440.24 The thickness of the specimen is to be taken as the smallest of four measurements to 0.001 inchor 0.01 mm, two of which are to be made at 1/2-inch or 13-mm intervals between the bench marks on oneedge beginning 1/4 inch or 6 mm from either mark, with the other two measurements being made atcorresponding points on the opposite edge.