GB/T 12960-2019 Translated English of Chinese Standard. (GBT 12960-2019, GB/T12960-2019, GBT12960-2019): Quantitative Determination of Constituents of Cementhttps://www.chinesestandard.net, 2020. 11. 13. - 23페이지 This Standard specifies the methods of quantitative determination of constituents of Portland cement, ordinary Portland cement, slag Portland cement, pozzolanic Portland cement, fly-ash Portland cement and composite Portland cement. This Standard is applicable to cement containing one or more materials among granulated blast-furnace slag, pozzolanic mixed material, fly ash, limestone, sandstone, kiln dust, gypsum and Portland cement clinker. |
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absorption weighing method accordance with Formula accordance with GB/T alkali asbestos 4.15 anhydrous magnesium perchlorate beaker blast-furnace slag constituent burning weighing method calculated in 7.3.6 calculated in accordance carbon dioxide cement after selective cement calculated clinker constituent constant mass constituent in cement content in cement content of carbon desiccator see 5.11 determination of carbon determination of constituents dissolution with EDTA dissolution with nitric EDTA solution ethanol expressed in g fraction of insoluble fraction of limestone g of specimen glass sand core granulated blast-furnace slag gypsum constituent hydrogen sulfide infrared analysis method insoluble slag content L---mass fraction limestone constituent magnesium perchlorate 4.16 mass fraction material or fly-ash nitric acid solution pH standard buffer phosphoric acid photoelectric titration method pozzolanic mixed material reaction flask room temperature sand core funnel slag in cement slag Portland cement sodium hydroxide standard buffer solution stirring bar sulfuric acid triethanolamine U-shaped tubes 11 water to wash weigh-take X-ray diffraction