[MT 306.2-1992] 蒸汽机车用铜川矿务局煤技术条件[已废止]
发布时间:1992-05-07
实施时间:1992-12-01
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[MT 306.4-1992] 常压固定床煤气发生炉用铜川矿务局煤技术条件[已废止]
发布时间:1992-05-07
实施时间:1992-12-01
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发布时间:1991-03-23
实施时间:1991-08-01
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[GB 8899-1988] 煤的显微组分组和矿物的测定方法[已作废]
发布时间:1988-11-01
实施时间:1988-11-01
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[GB 2565-1987] 煤的可磨性指数试验方法(哈德格罗夫法)[已作废]
发布时间:1988-07-01
实施时间:1988-07-01
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[GB 483-1987] 煤质分析试验方法一般规定[已作废]
发布时间:1988-07-01
实施时间:1988-07-01
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发布时间:1988-02-01
实施时间:1991-08-01
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[GB/T 1575-1987] 褐煤的苯萃取物产率测定方法[已作废]
发布时间:1988-02-01
实施时间:1988-02-01
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发布时间:1988-02-01
实施时间:1988-02-01
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[GB/T 7560-1987] 煤中矿物质的测定方法[已作废]
发布时间:1988-02-01
实施时间:1988-02-01
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发布时间:1988-02-01
实施时间:1988-02-01
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[GB 7562-1987] 发电煤粉锅炉用煤质量标准[已作废]
发布时间:1988-02-01
实施时间:1988-02-01
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发布时间:1987-12-01
实施时间:1987-12-01
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[GB/T 1341-1987] 煤的葛金低温干馏试验方法[已作废]
发布时间:1987-10-01
实施时间:1987-10-01
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[GB/T 479-1987] 烟煤胶质层指数测定方法[已作废]
发布时间:1987-10-01
实施时间:1987-10-01
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发布时间:1987-09-17
实施时间:2008-06-01
本标准规定了煤中镓的碱熔融—萃取分离—罗丹明B分光光度法和酸熔融—萃取分离—罗丹明B分光光度法的方法..
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发布时间:1987-09-07
实施时间:1988-07-01
本标准适用于褐煤、烟煤和无烟煤中稼的测定。
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发布时间:1987-09-01
实施时间:1987-09-01
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[GB 6948-1986] 煤的镜质组反射率测定方法[已作废]
发布时间:1987-09-01
实施时间:1987-09-01
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发布时间:1987-08-07
实施时间:1988-07-01
本标准适用于褐煤、烟煤、无烟煤中锗的测定。
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