ISO 23953-2-2015 pdf free.Refrigerated display cabinets — Part 2: Classification, requirements and test conditions.
This part of Iso 23953 specifies requirements for the construction, characteristics and performance of refrigerated display cabinets used in the sale and display of foodstuffs. It specifies test conditions and methods for checking that the requirements have been satisfied, as well as classification of the cabinets, their marking and the list of their characteristics to be declared by the manufacturer. It is not applicable to refrigerated vending machines. It is also not applicable to cabinets intended for storage or cabinets intended for use, for instance, in catering or non-retail refrigerated applications nor does it cover the choice of the types of foodstuffs chosen to be displayed in the cabinets.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 817, Refrigerants — Designation and safety classification
ISO 5149-2:2014, Refrigerating systems and heat pumps — Safety and environmental requirements — Part 2: Design, construction, testing, marking and documentation
ISO 23953-1:20 15, Refrigerated display cabinets — Part 1: Vocabulary
I EC 60335-1, Household and similar electrical appliances – Safety – Part 1: General requirements
IEC 60335-2-89, Household and similar electrical appliances – Sajèty – Part 2-89: Particular requirements
for commercial refrigerating appliances with an incorporated or remote refrigerant unit or compressor
3 Terms, definitions, symbols and abbreviated terms
3.1 General
running time — time during which compressor is running (or solenoid valve is open) or secondary refrigerant is circulating (or solenoid valve is open), within 24 h, expressed in hours
stopping time — time during which compressor is not running (or solenoid valve is closed) or secondary refrigerant is not circulating (or solenoid valve is closed), within 24 h and excluding defrost time, expressed in hours
defrost time — time during defrost during which compressor is not running (or solenoid valve is closed) or secondary refrigerant is generally not circulating, within 24 h, but not considered as stopping time, expressed in hours
mass flow rate of liquid refrigerant or secondary refrigerant in kilograms per second time between two consecutive measuring samples, in hours.ISO 23953-2 pdf download.