5603 标准查询与下载

DIN 51935:1993 炭素材料试验.用空气作实验气体的真空衰减法测定透气系数.固体材料

The vacuum-decay method with air as experimental gas is used for the determination of the coefficient of permeability in cm/s of carbon and graphite materials (solid matters).

Testing of carbon materials; determination of the coefficient of permeability by means of the vacuum-decay method with air as experimental gas; solid matters

DIN 51933:1990 炭素材料的试验.用萃取法测定焦炭中去掉粉未物质的含量.固体材料

The method is used for the determination of the content of dedusting substances, determined as mass fraction in % and in cokes by extraction.#,,#

Testing of carbon materials; determination of content of dedusting substances in cokes by extraction; solid materials

DIN 51934:1990 炭素素材料的试验.成形产品的声速测定.固体材料

Testing of carbon materials; determination of velocity of sound of shaped articles; solid materials

DIN 51916:1987 碳素材料的试验.夯实后表观密度的测定.固体材料

The method of this standard is used for the determination of apparent density after tamping in g/cm of carbon and graphite materials (solid materials) within special grain classes.

Testing of carbon materials; determination of apparent density after tamping; solid materials

DIN 50973:1984 电镀层.电镀槽用酸.要求

Electroplated coatings; acids for electroplating; requirements

ISO 1980:1977 工业用硝酸 总酸度的测定 滴定法

Nitric acid for industrial use; Determination of total acidity; Titrimetric method

ISO 1698:1977 工业用邻二氯苯 试验方法一览表

Specifies the sampling, the determination of distillation characteristics, the determination of density at 20 ?C, the determination of crystallizing point, the determination of residue on evaporation, the determination of water and the determination of acidity. The determination of distillation characteristics indicates the difference between the temperatures corresponding to the collection of two volumes of destillate, V0 and V1. These two volumes will be indicated in the specification of product agreed between the interested parties. Replaces ISO Recommendation R 1698-1970.

O-Dichlorobenzene for industrial use; list of methods of test

ISO 2990:1974 工业用硝酸 用测量硝酸密度计算其浓度

Describes the determination of density at 20 ?C by means of a hydrometer. The correspondence between density and concentration of aqueous solutions is given in a table. Has also been approved by the IUPAC.

Nitric acid for industrial use; Evaluation of the nitric acid concentration by measurement of density

ISO 2994:1974 工业用硫酸铵 水不溶物测定 重量法

Specifies the dissolution of a test portion in water; filtration under vacuum on the filter crucible, thorough washing of the filter crucible and detection of the absence of sulphates in the wash water by a barium chloride test, drying and weighing of the insoluble residue. Has also been approved by the IUPAC.

Ammonium sulphate for industrial use; Determination of matter insoluble in water; Gravimetric method