摘要
本文选用了四种不同形式的钢材做为标准物质的原料．进行试验探讨，结果证明，普通碳钢标准物质长期存放，硫、磷值下降的现象是普通存在的．
In this paper,four different forms of steel used as raw material of standard substance have been studied. The experimental results illustrate that the phenomenon decrease in quantity of sulphur and phospherus exist generally when carbon steels standardsubstance store for a long time.
出处
《山东科学》
CAS
1994年第3期37-41,46,共6页
Shandong Science
关键词
标准物质
长期存放
钢
硫值
磷值
carbon steel standard substance
store for a long time
decrease inquantity of sulphur and phosphorus
