Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy (ISO 6978-2:2003); German version EN ISO 6978-2:2005— 25 стр.
Natural gas - Determination of mercury - Part 1: Sampling of mercury by chemisorption on iodine (ISO 6978-1:2003); German version EN ISO 6978-1:2005— 23 стр.
Natural gas - Determination of mercury - Part 1: Sampling of mercury by chemisorption on iodine (ISO 6978-1:2003); German version EN ISO 6978-1:2005— 23 стр.