Chemical products for industrial use; Sampling techniques; Solid chemical products in the form of particles varying from powders to coarse lumps— 36 стр.
Water quality - Determination of mercury - Method using atomic absorption spectrometry (AAS) with and without enrichment (ISO 12846:2012); German version EN ISO 12846:2012— 26 стр.
Chemicals used for treatment of water intended for human consumption - Chemicals for emergency use - Trichloroisocyanuric acid; German version FprEN 12933:2014
Chemicals used for treatment of water intended for human consumption - Chemicals for emergency use - Trichloroisocyanuric acid; German version EN 12933:2008— 31 стр.
Chemicals used for treatment of water intended for human consumption - Chemicals for emergency use - Trichloroisocyanuric acid; German version EN 12933:2008— 31 стр.