Chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials (alternative to the X-ray fluorescence method) - Part 2: Wet chemical analysis (ISO 20565-2:2008)— 33 стр.
Plastics piping and ducting systems - Thermoplastics pipes - Determination of ring flexibility (ISO 13968:2008); German version EN ISO 13968:2008— 9 стр.