DD 189:1990被替代
Specification for the safety of condensing boilers (2nd and 3rd family gases)
出版：British Standards Institution
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基本信息
標準編號： DD 189:1990
發布時間：1990/6/29 0:00:00
標準類別：Standard
出版單位：British Standards Institution
標準頁數：12
標準簡介
Requirements and associated methods of test for central heating boilers designed to utilise a proportion of the latent heat of condensation of the water vapour in the combustion products.
標準備注
? British Standards Institution 2013
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