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中華人民共和國國家標準(中國大陸GB標準)英文版 |
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GB標準是中華人民共和國國家標準，也叫GB國標，是中國大陸強制執行的國家標準，所有中國大陸境內銷售的商品及提供服務都必須符合GB國家標準的要求，包括進口商品及服務； 本網站提供GB國家標準的查詢檢索，英文版翻譯，GB標準產品檢測檢驗及合規性分析服務； |
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GB/T 24228-2009 ??????? ?????? ??（中英文版） Chromium ores and concentrates - Methods of chemical analysis - General instruction |
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GB/T 24227-2009 ??????? ?????? ?????????（中英文版） Chromium ores and concentrates - Determination of silicon content - Spectrophotometric method and gravimetric method |
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GB/T 24226-2009 ??????? ?????? ?????????（中英文版） Chromium ores and concentrates - Determination of calcium contents - Flame atomic absorption spectrometric method |
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GB/T 24225-2009 ??? ??????? ?????（中英文版） Chromium ores - Determination of total iron content - Titrimetric method after reduction |
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GB/T 24224-2009 ??? ?????? ??-????????-?????????-??????（中英文版） Chromium ores - Determination of sulfur content - Combustion-neutralization titration method, combustion-potassium iodate titration method and combustion-infrared absorption method |
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GB/T 24223-2009 ??? ?????? ???????????（中英文版） Chromium ores - Determination of phosphorus content - Reduced molybdophosphate photometric method |
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GB/T 24222-2009 ??? ????????（中英文版） Chromium ores - Determination of moisture of lots |
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GB/T 24221-2009 ??? ???????? EDTA???（中英文版） Chromium ores - Determination of calcium and magnesium contents - EDTA titrimetric method |
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GB/T 24220-2009 ??? ??????????? ???（中英文版） Chromium ores - Determination of hygroscopic moisture content in analytical samples - Gravimetric method |
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GB/T 24239-2009 ?????????? ???????（中英文版） Direct reduced iron and hot briquetted iron - Sampling and sample preparation |
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GB/T 24238-2009 ??????????????（中英文版） Hot rolled wire rod for prestressed steel |
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GB/T 24237-2009 ??????????? ????????（中英文版） Iron ore pellets for shaft direct-reduction feedstocks - Determination of the clustering index |
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GB/T 24236-2009 ????????? ??????????????????（中英文版） Iron ores for shaft direct-reduction feedstocks - Determination of the reducibility index, final degree of reduction and degree of metallization |
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GB/T 24235-2009 ?????????? ??????????????? ???????（中英文版） Iron ores for shaft direct-reduction feedstocks - Determination of the low temperature reduction-disintegration index and degree of metallization |
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GB/T 24234-2009 ?? ???????? ???????????(???)（中英文版） Cast iron - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (Routine method) |
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GB/T 24233-2009 ??????? ???????????????????（中英文版） Manganese and chromium ores - Experimental methods for evaluation of quality variation and methods for checking the precision of sampling |
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GB/T 24232-2009 ??????? ??????????????（中英文版） Manganese and chromium ores - Experimental methods for checking the bias of sampling and sample preparation |
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GB/T 24231-2009 ??? ???????????????????????? ????X???????（中英文版） Chrome ores - Determination of magnesium, aluminum, silicon, calcium, titanium, vanadium, chrome, manganese, iron and nickel content - Wavelength dispersive X-ray fluorescence spectrometric method |
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GB/T 24230-2009 ??????? ?????? ???（中英文版） Chromium ores and concentrates - Determination of chromium content - Titrimetric method |
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GB/T 14981-2009 ??????????????????（中英文版） Dimension,shape,mass and tolerance for hot-rolled round wire rod |
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