NEN NVN ENV 12977-1 : 2001
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 1: GENERAL REQUIREMENTS
20-04-2010
12-01-2013
Specifies requirements on durability, reliability and safety of small and large custom built solar heating systems with liquid heat transfer medium for residential buildings and similar applications.
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