
Overheating safety devices
出版:International Organization for Standardization

专家解读视频
Add the following paragraph after the last paragraph: This part of ISO 23551 is also applicable to: — water operated gas valves (see Annex AA); and — OSDs according to Annex BB.
BS ISO 23551-8 : 2016 : INC : AMD1 : 2019 - Identical
BS ISO 22526-1:2020 - Identical
BS ISO 23551-8:2016+A1:2019 - Identical