D52 冶金辅助原料矿 标准查询与下载

SN/T 0481.1-1995 出口矾土检验方法.用苦杏仁酸隐蔽钛EDTA络合滴定氧化铝量

Method for inspection of bauxite for export.Determination of aluminium oxide content--EDTA complexometric titration1995-09-06

JIS M 8514:1995 萤石冶金等级.化学分析方法

Metallurgical grade fluorspar -- Methods for chemical analysis

KS E 3806-1993 长石分析方法

이 규격은 요업용 장석의 분석 방법에 대하여 규정한다.

Methods for chemical analysis of feldspar

ISO 9497:1993 荧石 评估质量偏差的实验方法

Specifies experimental methods for the evaluation of quality variation of fluorspar lots from the same source. These methods are to be used in conjunction with the sampling procedures specified in ISO 8868.

Flourspar; experimental methodes for evaluation of quality variation

ISO 9498:1993 荧石 检验取样和制样偏差的实验方法

Sampling and sample preparation of similar types of fluorspar is assumed to be carried out in accordance with the methods specified in ISO 8868. The experimental methods given are based on comparing the results obtained from the method to be checked with the results of a reference method which, for all practical purposes, is considered to produce practically unbiased results.

Fluorspar; experimental methods for checking the bias of sampling and sample preparation

ISO 6676:1993 酸性和陶瓷性荧石 磷总含量的测定 还原磷钼酸盐光谱法

The method specified is based on dissolution of a test portion by fusion with a mixture of sodium carbonate, boric acid and sodium nitrate and subsequent acidification with nitric acid, formation of the molybdophosphate complex and extraction with a mixture of ethyl acetate and butyl acetate, followed by selective reduction of the complex to molybdenum blue by means of tin(II) chloride added to the organic phase, spectrometric measurement of the absorbance of the coloured complex at the wavelength of maximum absorption (about 710 nm). Applies to products having total phosphorus contents, expressed as PO, in the range 0,01 % (m/m) to 1,0 % (m/m).

Acid-grade and ceramic-grade fluorspar; determination of total phosphorus content; reduced-molybdophosphate spectrometric method

ISO 5438:1993 酸性和陶瓷性荧石 硅含量的测定 还原硅钼酸盐光谱法

The method specified is based on decomposition of a test portion by fusion with sodium carbonate and subsequent acidification with hydrochloric acid in the presence of boric acid to complex fluoride, formation of the molybdosilicic acid complex and selective reduction to the blue molybdosilicic acid complex with addition of tartaric acid to prevent interference from phosphate, spectrometric measurement of the absorbance of the coloured complex at the wavelength of maximum absorption (about 795 nm). Applies to products having silica contents, expressed as SiO, in the range 0,05 % (m/m) to 4,0 % (m/m).

Acid-grade and ceramic-grade fluorspar; determination of silica content; reduced-molybdosilicate spectrometric method

ISO 9779:1993 冶金性荧石 铅含量的测定 溶剂萃取原子吸收光谱法

The principle of the method specified is to decompose a test portion by a mixture of nitric, hydrofluoric and perchloric acids, dissolving the salts in hydrochloric acid after evaporation to dryness, extracting the lead from a dilute hydrochloric acid solution of the decomposed test portion into a solution of tri-n-octylphosphine oxide in 4-methyl-2-pentanone, aspirating the extract into the air/acetylene flame of an atomic absorption spectrometer, and measuring the absorbance at 283,3 nm. Applies to products having lead contents in the range 0,0006 % (m/m) to 0,01 % (m/m).

Metallurgical-grade fluorspar; determination of lead content; solvent extraction atomic absorption spectrometric method

ISO 9504:1993 冶金性荧石 锑含量的测定 溶剂萃取原子吸收光谱法

The principle of the method specified is to decompose a test portion by a mixture of nitric, hydrofluoric and perchloric acids, dissolving the salts in hydrochloric acid after evaporation to fumes of sulfuric acid, extracting the antimony from a dilute hydrochloric acid solution of the decomposed test portion into a solution of tri-n-octylphosphine oxide in 4-methyl-2-pentanone, aspirating the extract into the air/acetylene flame of an atomic absorption spectrometer, and measuring the absorbance at 217,6 nm. Applies to products having an antimony content equal to or greater than 0,001 % (m/m).

Metallurgical-grade fluorspar; determination of antimony content; solvent extraction atomic absorption spectrometric method

ISO 9502:1993 冶金性荧石 硅含量的测定 还原硅钼酸盐光谱法

The principle of the method specified is to decompose a test portion by alkaline fusion with sodium carbonate and subsequent acidification with hydrochloric acid in the presence of boric acid to complex fluoride, selective reduction to the blue molybdosilicic acid complex, spectrometric measurement of the absorbance of the coloured complex at a wavelength corresponding to the absorption maximum of approximately 650 nm. Applies to products having silica contents, expressed as SiO, in the range 0,2 % (m/m) to 30 % (m/m).

Metallurgical-grade fluorspar; determination of silica content; reduced-molybdosilicate spectrometric method

ISO 9438:1993 冶金性荧石 磷总含量的测定 还原磷钼酸盐光谱法

The principle of the method specified is to decompose a test portion by alkaline fusion and subsequent dissolution of the melt in excess of nitric acid, precipitation of iron(III) phosphate with ammonia solution, dissolution of the precipitate in nitric acid, formation of the molybdophosphate complex and extraction, followed by selective reduction of the complex to molybdenum blue, spectrometric measurement of the absorbance of the coloured complex at the wavelength of maximum absorption (about 710 nm). Applies to products having total phosphorus contents, expressed as PO, in the range 0,01 % (m/m) to 1,0 % (m/m).

Metallurgical-grade fluorspar; determination of total phosphorus content; reduced-molybdophosphate spectrometric method

ISO 9061:1993 酸性和陶瓷性荧石 铁含量的测定 1,10-菲啉光谱法

The method specified is based on alkaline fusion of a test portion with a mixture of sodium carbonate and boric acid, dissolution of the melt in excess hydrochloric acid, reduction of the iron(III) with hydroxylammonium chloride, formation of the iron(II)-1,10-phenanthroline complex in a buffered medium (pH between 3 and 5), spectrometric measurement of the absorbance of the coloured complex at a wavelength of about 510 nm, corresponding to the absorption maximum. Applies to products having iron contents, expressed as FeO, in the range 0,1 % (m/m) to 2,0 % (m/m).

Acid-grade and ceramic-grade fluorspar; determination of iron content; 1,10-phenanthroline spectrometric method

ISO 4284:1993 酸性和陶瓷性荧石 硫化物含量的测定 碘量法

The principle of the method specified is digestion of a test portion in a sealed apparatus in a mixture of hydrochloric acid, tin(II) chloride and boric acid solutions, absorption of the liberated hydrogen sulfide, entrained in a stream of oxygen-free argon or nitrogen, in zinc acetate solution and iodometric determination of the zinc sulfide formed. The method is applicable to products having a sulfide content equal to or greater than 0,001 % (m/m). It is not applicable, if presence of polysulfides is suspected.

Acid-grade and ceramic-grade fluorspar; determination of sulfide content; iodometric method

ISO 4283:1993 所有等级的荧石 碳酸盐含量的测定 滴定法

The principle of the method specified is treatment of a test portion with hydrochloric acid solution, absorption of the evolved carbon dioxide in barium hydroxide solution, neutralization of excess alkali with hydrochloric acid solution, addition of an exactly measured excess of a standard volumetric hydrochloric acid solution to dissolve the precipitated barium carbonate and back-titration with a standard volumetric sodium hydroxide solution using methyl orange as indicator. The method is applicable to products having carbonate contents equal to or greater than 0,04 % (m/m).

All grades of fluorspar; determination of carbonate content; titrimetric method

ISO 9062:1992 酸性和陶瓷性荧石 锰含量的测定 高碘酸盐光谱法

Applicable to products having Mn-contents in the range 0,006 % to 0,4 %. Decomposition of the test portion with nitric and perchloric acids. After dilution follows oxidation of manganese to permanganate with sodium metaperiodate. Spectrometric measurement at 545 nm.

Acid-grade and ceramic-grade fluorspar; determination of manganese content; periodate spectrometric method

ISO 4282:1992 酸性和陶瓷性荧石 在105℃时质量损失的测定

The method is based on drying a test portion at 105 鳦 and determination of the loss in mass, which corresponds to the content of water and other components volatile at that temperature. Applies to fluorspars, which may be dried material containing not less than 0,02 % (m/m) of components volatile at 105 鳦, or filter cake.

Acid-grade and ceramic-grade fluorspar; determination of loss in mass at 105 °C

ISO 5437:1992 酸性和陶瓷性荧石 硫酸钡含量的测定 重量法

The method is based on evaporation to dryness of a test portion in the presence of hydrofluoric acid and concentrated sulfuric acid, extraction of the soluble salts from the mixture, filtration, drying and weighing of the residual barium sulfate. Applies to products having barium sulfate contents equal to or greater than 0,1 % (m/m).

Acid-grade and ceramic-grade fluorspar; determination of barium sulfate content; gravimetric method

ISO 8875:1992 所有等级的荧石 批料水含量的测定

The principle of the method is drying of a test portion in air at 105 鳦 to constant mass. Determines the mean value of the moisture content.

All grades of fluorspar; determination of moisture content of a lot

BS 6043-4.12:1992 制铝工业用炭素材料取样与试验方法.第4部分:冷捣糊块.第12节:烘焙捣糊块热导率测定

Preparation of a baked, rammed piece, determination of temperature gradients in a non-oxidising atmosphere using a split column method. To be read in conjunction with BS 1902-5.8, BS 6043-4.0, BS 6043-4.1, BS 6043-4.6, BS 6043-4.7

Methods of sampling and test for carbonaceous materials used in aluminium manufacture - Cold ramming pastes - Determination of the thermal conductivity of baked rammed paste

ISO 10058:1992 菱美矿和白云石 化学分析

Specifies methods for determining silica, alumina, titania, iron oxide and oxides of manganese, chromium, calcium, magnesium, sodium, potassium and lithium. It also specifies methods for determining the loss of ignition of magnesite and dolomite, and of refractories based on these raw materials. Annex A describes a method for determining the boron content of magnesites only.

Magnesites and dolomites; chemical analysis