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The first 20 symbols of chemical elements

The first 20 symbols of chemical elements, Total:3 items.

In the international standard classification, The first 20 symbols of chemical elements involves: Vocabularies, Inorganic chemicals, Physics. Chemistry, Metalliferous minerals.

German Institute for Standardization, The first 20 symbols of chemical elements

• DIN 32640:1986 Chemical elements and simple inorganic compounds; names and symbols

Association Francaise de Normalisation, The first 20 symbols of chemical elements

• NF T01-001:1962 Chemical industries. Names and symbols of elements. Table of relative atomic weights.

国家市场监督管理总局、中国国家标准化管理委员会, The first 20 symbols of chemical elements

• GB/T 14352.20-2021 Methods for chemical analysis of tungsten ores and molybdenum ores—Part 20：Determination of niobium, tantalum, zirconium, hafnium and 15 rare earth elements content—Inductively coupled plasma mass spectrometry

Others:   The first 20 symbols of chemical elements.