Petroleum products - Determination and application of precision data in relation to methods of test (ISO 4259:1992 + Cor 1:1993); German version EN ISO 4259:1995— 40 стр.
Leather - Physical and mechanical tests - Determination of flex resistance by flexometer method (ISO 5402:2002); German version EN ISO 5402:2002— 10 стр.
Investigations of raw material in hard-coal-mining - Microscopical examination of hard coal, coke and briquettes - Part 1: Terms, survey of processes and their applications— 7 стр.