4648 标准查询与下载

DIN 23009:1990 无烟煤的备制.中等硬度.概念、要求和试验

The standard is used for dense-medium solids in preparation of hard coal.

Preparation of hard coal; medium solids; concepts, requirements, testing

DIN 22024:1989 硬煤矿开采的原矿材的勘测.坚岩石的拉伸强度的测定

The indirect determination of tensile strength of natural solid rocks are carried put for obtaining information relative to mine safety, mining technology, and coal preparation, viz. competence of the strata, rock pressure calculations, tool wear, cutting performance of roadheading and coalwinning equipment, dimensioning of crushers, etc.

Investigations of the raw material in hard-coal-mining; determination of tensile strength on solid rock

DIN 23008:1988 无烟煤的备制.浮选剂.术语、要求和验证

This standard is used for requirements and verification of flotation agents in preparation of hard coal.

Preparation of hard coal; flotation agents; terms, requirements, verification

DIN 22013:1985 硬煤矿的原材料勘察.矿槽试样.取样及试验大纲

Investigations of the raw material in hard-coal-mining; channel sample; sampling and schema of tests

DIN 22014:1985 硬煤矿原料勘察.采作面的采掘物中抽取的原煤试样.取样和试验大纲

Investigations of the raw material in hard-coal mining; raw coal sample from the production of a working area; sampling and schema of tests

DIN 22021:1985 硬煤采矿原料分析勘测.矿石的显微检验

Investigations of the raw material in hard-coal-mining; microscopical examinations of rocks

ISO 7404-1:1984 烟煤和无烟煤的岩相分析法.第1部分:术语汇编

Methods for the petrographic analysis of bituminous coal and anthracite; Part 1 : Glossary of terms