JOE HUI
第1楼2019/03/04
ISO8124-5有讲到,10%体积比的硝酸浸泡器皿消解罐等,至少浸泡2个小时
引用原文:5.2 Apparatus
All glassware shall be soaked in 10 % (v/v) nitric acid (5.1.2) for at least 2 h and then rinsed in deionised
water before use.
5.1.1 Nitric acid, concentrated, 1,40 g/ml, 65 % (v/v), “analytical” grade.分析纯级别的硝酸,质量分数65%
5.1.2 Nitric acid, 10 % (v/v): Add 100 ml concentrated nitric acid (5.1.1) to 500 ml water (5.1.4). Dilute
to 1 000 ml with water (5.1.4).10%体积比的硝酸浸泡液
5.1.4 Water, of at least grade 3 purity, in accordance with ISO 3696.水要满足ISO3696(等同GB6682的三级水要求)
jxkzkksskksks
第3楼2019/03/04
好的,谢谢
jxkzkksskksks
第7楼2019/03/05
机器上的炬管等也是采用10%硝酸浸泡吧?