NEN ISO 23551-3 : 2005
Current
The latest, up-to-date edition.
SAFETY AND CONTROL DEVICES FOR GAS BURNERS AND GAS-BURNING APPLIANCES - PARTICULAR REQUIREMENTS - PART 3: GAS/AIR RATIO CONTROLS, PNEUMATIC TYPE
01-12-2013
Defines the safety, construction and performance requirements for gas/air ratio controls, pneumatic type (hereafter referred to as "ratio control"), for inlet pressures up to and including 50 kPa, of a nominal connection size up to and including DN 250, intended for use with gas appliances using fuel gases as natural gas, manufactured gas or liquefied petroleum gas (LPG). It also describes the test procedures for evaluating these requirements and specifies information necessary for installation and use.
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