ÖNORM EN 305:1997-06

Действует

Heat exchangers - Definitions of performance of heat exchangers and the general test procedure for establishing performance of all heat exchangers

Описание Изменения Ссылки Версии

На этот документ ссылаются

ÖNORM EN 307:1999-03

Действует

Heat exchangers - Guidelines to prepare installation, operating and maintenance instructions required to maintain the performance of each type of heat exchanger

ÖNORM EN 308:1997-06

Действует

Heat exchangers - Test procedures for establishing performance of air to air and flue gases heat recovery devices