Petroleum and related products - Determination of the extreme-pressure and anti-wear properties of fluids - Four ball method (European conditions) (ISO 20623:2003); German version EN ISO 20623:2003— 26 стр.
Playing field equipment - Volleyball equipment - Functional and safety requirements, test methods (including Amendment 1:2000); German version EN 1271:1998 + A1:2000— 11 стр.
Playing field equipment - Volleyball equipment - Functional and safety requirements, test methods (including Amendment 1:2000); German version EN 1271:1998 + A1:2000— 11 стр.