ÖNORM EN 13508-1:2004-02

Заменен

Condition of drain and sewer systems outside buildings - Part 1: General requirements

Ссылочные документы

Действует

Investigation and assessment of drain and sewer systems outside buildings - Part 1: General Requirements

Действует

Drain and sewer systems outside buildings - Sewer system management

Действует

Investigation and assessment of drain and sewer systems outside buildings - Part 1: General Requirements