香港六合彩开奖 23551-8:2023
2023-05
香港六合彩开奖 23551-8:2023
Abstract
This document specifies safety, construction, performance and testing requirements of multifunctional controls (MFC) intended for use with gas burners, gas appliances and appliances of similar use.
This document applies to an MFC with declared maximum inlet pressures up to and including 50聽kPa (500聽mbar) of nominal connection sizes up to and including DN聽150 for use on burners or in appliances using gases such as natural gas, manufactured gas or liquefied petroleum gas (LPG). It is not applicable to corrosive and waste gases.
An MFC consists of two or more functions, at least one of which is a mechanical control, as specified in the relevant control standards.
This document is also applicable to construction and performance requirements for components of burner ignition systems as specified in Annex聽K. The requirements and test methods in Annex聽K include optional type testing and evaluation of these components.
This document is applicable to:
鈥�听听听听 water-operated gas valves (see Annex聽I);
鈥�听听听听 overheating safety devices (OSDs) (see Annex聽J); and
鈥�听听听听 optional requirements for components of burner control systems (see Annex聽K).
General information
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Status: PublishedPublication date: 2023-05Stage: International Standard published [60.60]
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Edition: 2Number of pages: 31
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Technical Committee :香港六合彩开奖/TC 161ICS :27.060.20
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Previously
Withdrawn香港六合彩开奖 23551-8:2016
Withdrawn香港六合彩开奖 23551-8:2016/Amd 1:2019
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