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
标准编号： DD 189:1990
发布时间：1990/6/29 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：12
标准简介
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.
标准备注
© British Standards Institution 2013
替代本标准的新标准
