99啪99精品视频在线观看,久久久久免费一区二区三区,久久中文字幕爱爱视频,欧美日韩国产免费一区二区三区


ZH

KR

JP

ES

RU

DE

carbon element

carbon element, Total:6 items.

In the international standard classification, carbon element involves: Coals, Fuels, Geology. Meteorology. Hydrology.


Professional Standard - Ferrous Metallurgy, carbon element

  • YB/T 075-1995 Determination of carbon and hydrogen content for carbon fiber and its products

Japanese Industrial Standards Committee (JISC), carbon element

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, carbon element

  • GB/T 19143-2003 Analytical method of element for Carbon,Hydrogen and Oxygen in rock organics
  • GB/T 19143-2017 Analytical method of element for carbon,hydrogen ,oxygen and nitrogen in rock organics

Professional Standard - Petroleum, carbon element

  • SY/T 5122-1999 Analytical method of element for Carbon,Hydrogen and Oxygen in organic matter of rock

Professional Standard - Meteorology, carbon element

  • QX/T 70-2007 Determination of elemental carbon and organic carbon of atmospheric aerosols.thermal/optical analysis method




Copyright ?2007-2023 ANTPEDIA, All Rights Reserved