[辽宁省地方标准] DB21/812-1994 辽宁西部地区油松

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[计量检定规程] JJG 812-1993 干涉滤光片 可复制文字版

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[建筑材料行业标准] JC/T 812-2009 泡沫石棉

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[内蒙古地方标准] DB15/T 812-2014 内蒙古地方菜 炒馈垒

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[国外标准] BS EN 812-1998 工业防护帽

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[国外标准] BS EN 812-1997﹢A1-2001 Industrial bump caps

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[国外标准] BS 812-2-1995 Testing aggregates. Methods for determination of density

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[国外标准] BS 812-123-1999 Testing aggregates. Method for determination of alkali-silica reactivity. Concrete p

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[国外标准] BS 812-121：1989 Testing aggregates. Method for determination of soundness

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[国外标准] BS 812-120-1989 Testing aggregates. Method for testing and classifying drying shrinkage of aggregate

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[国外标准] BS 812-118：1988 Testing aggregates. Methods for determination of sulphate content

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[国外标准] BS 812-117-1988 Testing aggregates. Method for determination of water-soluble chloride salts

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[国外标准] BS 812-114-1989 Testing aggregates. Method for determination of the polished-stone value

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[国外标准] BS 812-113-1990 Testing aggregates. Method for determination of aggregate abrasion value (AAV)

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[国外标准] BS 812-112-1990 Testing aggregates. Method for determination of aggregate impact value (AIV)

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[国外标准] BS 812-111-1990 Testing aggregates. Methods for determination of ten per cent fines value

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[国外标准] BS 812-110-1990 Testing aggregates. Methods for determination of aggregate crushing value

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[国外标准] BS 812-109-1990 Testing aggregates. Methods for determination of moisture content

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[国外标准] BS 812-106-1985 Testing aggregates. Method for determination of shell content in coarse aggregate

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[国外标准] BS 812-105.2-1990 Testing aggregates. Methods for determination of particle shape. Elongation index

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[国外标准] BS 812-105.1-1989 Testing aggregates. Methods for determination of particle shape. Flakiness index

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[国外标准] BS 812-104-1994 Testing aggregates. Method for qualitative and quantitative petrographic examination

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[国外标准] BS 812-103.2-1989 Testing aggregates. Method for determination of particle size distribution. Sedime

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[国外标准] BS 812-103-1985 Testing aggregates. Method for determination of particle size distribution. Sieve te

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[国外标准] BS 812-103-1-1985 Testing aggregates Part 103. Method for determination of particle size distributio

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