During the webinar, several questions were asked about specific gases. We reproduce some of them here.

Incoming questions and answers:

What are the requirements in zone 2? Heating/cooling machine with ammonia as coolant. It looks like ammonia is in Group 1?

Ammonia NH3 CAS No. 7664-41-7 Density in relation to air: 0.59 (Light gas) Gas group IIA, T-Class T1 LEL 15% UEL 33.6%

What requirements apply to charging electric forklifts? The chargers themselves do not appear to be EX designed, open contactors etc

Connection/Disconnection will constitute a potential source of ignition and must not be carried out without a confirmed gas-free area.

What about storing chlorine and sulfuric acid in the technical room of the pool? Should it be stored in a separate room?

Don't know this in detail, but chlorine and sulfuric acid mixed together can probably create a chemical reaction, feel free to contact a chemist to find out what gas is possibly formed. It may also be a good idea to use the internal control system to assess / document the dangers of having them stored, and possibly consider measures.

Webinar recording

Here you can see a recording of the webinar that was held on 20 May 2021.

Sverre Isaksen

Sverre Isaksen

Senior Instructor - Trainor Elsikkerhet AS


+47 984 30 869