[HG/T 3543-1988] 天然气转化催化剂化学成分分析方法[已作废]
发布时间:1988-04-11
实施时间:1988-12-01
原标准号ZB G75005-88
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[GB/T 6286-1986] 分子筛堆积密度测定方法[现行]
发布时间:1986-04-18
实施时间:1987-04-01
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[GB/T 6287-1986] 分子筛静态水吸附测定方法[现行]
发布时间:1986-04-18
实施时间:1987-04-01
本标准适用于粒壮和粉状分子筛静态水吸附的测定。
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[GB/T 6288-1986] 粒状分子筛粒度测定方法[现行]
发布时间:1986-04-18
实施时间:1987-04-01
本标准适用于球形、条形分子筛外形粒度的测定。
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发布时间:1980-07-01
实施时间:1980-07-01
本标准适用于以煤矸石为原料经盐酸处理而制得的结晶氯化铝。该产品主要用作熔模铸造型壳硬化剂,,呈白色或..
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