DIN 21920-7:1996
矿山勘测平面图.岩相学.第7部分:钾盐矿和岩盐矿
Mine plans - Petrography - Part 7: Potash and rock salt mining
- 标准号
- DIN 21920-7:1996
- 发布
- 1996年
- 发布单位
- 德国标准化学会
- 当前最新
- DIN 21920-7:1996
- 被代替标准
- DIN 21900:1951 DIN 21920-7:1993
- 适用范围
- The document defines the drafting of mining-specific maps. The document contains the necessary symbols, abbreviations and terms for the display of petrological features of the deposit and the adjacent strata in potash and rock salt mining.#,,#