[GB 5447-1985] 烟煤粘结指数测定方法[已作废]
发布时间:1986-07-01
实施时间:1986-07-01
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[GB 5448-1985] 烟煤自由膨胀序数测定方法 电加热法[已作废]
发布时间:1986-07-01
实施时间:1986-07-01
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[GB 5449-1985] 烟煤罗加指数测定方法[已作废]
发布时间:1986-07-01
实施时间:1986-07-01
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发布时间:1986-07-01
实施时间:1986-07-01
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发布时间:1985-07-01
实施时间:1985-07-01
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发布时间:1985-05-01
实施时间:1985-05-01
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发布时间:1985-05-01
实施时间:1985-05-01
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[GB 4634-1984] 煤灰中钾 钠 铁 钙 镁 锰的测定方法(原子吸收分光光度法)[已作废]
发布时间:1985-05-01
实施时间:1985-05-01
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发布时间:1984-10-01
实施时间:1984-10-01
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[GB 218-1983] 煤中碳酸盐二氧化碳含量的测定方法[已作废]
发布时间:1984-01-01
实施时间:1984-01-01
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发布时间:1984-01-01
实施时间:1984-01-01
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[GB 3812-1983] 褐煤蜡试样的采取和缩制方法[已作废]
发布时间:1983-08-03
实施时间:1984-05-01
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[GB/T 3813-1983] 褐煤蜡密度测定方法[已作废]
发布时间:1983-08-03
实施时间:1984-05-01
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[GB/T 3814-1983] 褐煤蜡粘度测定方法[已作废]
发布时间:1983-08-03
实施时间:1984-05-01
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[GB/T 3815-1983] 褐煤蜡加热损失量测定方法[已作废]
发布时间:1983-08-03
实施时间:1984-05-01
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[GB/T 3816-1983] 褐煤蜡中地沥青含量测定方法[已作废]
发布时间:1983-08-03
实施时间:1984-05-01
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[GB 215-1982] 煤中各种形态硫的测定方法[已作废]
发布时间:1982-12-01
实施时间:1982-12-01
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发布时间:1982-12-01
实施时间:1982-12-01
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发布时间:1982-12-01
实施时间:1982-12-01
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发布时间:1981-10-01
实施时间:1981-10-01
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