German standard methods for the examination of water, waste water and sludge - Physical and physico-chemical characteristics (group C) - Part 5: Determination of pH value (C 5)
Textile machinery and accessories - Machine parts in contact with textile processing oils - Part 2: Determination of the impact on polymeric materials (ISO 11659-2:2004)— 16 стр.
Textile machinery and accessories - Machine parts in contact with textile processing oils - Part 3: Determination of the impact on lacquers (ISO 11659-3:2004)— 10 стр.