ÖNORM EN 378-4

1.1 The scope of EN 378-1 is applicable. 1.2 This Part 4 of the European Standard specifies requirements for safety and environmental aspects in relation to operation, maintenance, repair of refrigerating systems and the recovery, reuse and disposal of all types of refrigerant. 1.3 These requirements are intended to minimize risks of injury to persons and damage to property and the environment resulting from improper handling of the refrigerants or from contaminants leading to system breakdown and resultant emission of the refrigerant. 1.4 Certain clauses and subclauses of this Part 4 are not applicable to unit systems, self contained systems and systems built on site which operate with charges of refrigerant up to 2,5 kg of group L1 refrigerant, 1,5 kg of group L2 refrigerant, and 1,0 kg of group L3 refrigerant. This clause is: clause 5.