ÖNORM EN 993-17:1999-03

Действует

Methods of test for dense shaped refractory products - Part 17: Determination of bulk density of granular materials by the mercury method with vacuum

Ссылочные документы

Действует

Laboratory glassware; Interchangeable conical ground joints — 7 стр.

Действует

Test sieves; metal wire cloth, perforated metal plate and electroformed sheet; nominal sizes of openings — 9 стр.