PS<200 and
PS x V<50
V<1 ltr and
PS<200 or
V>1 ltr and
PS x V<25
Refrigerant group 1
NWEA 743
App. 2 diagramme 1
Vessel is governed
by
Art. 3 (3)
YES
NO
Vessel is in safety
category I
YES
NO
PS < 200 and
PS x V < 200
Vessel is in safety
category II
Vessel is in safety
category III
YES
NO
Determination of vessel
safety category
PS < 1000 and
PS x V < 1000
Vessel is in safety
category IV
YES
NO
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