BS EN ISO 22041:2019 pdf free.Refrigerated storage cabinets and counters for professional use – Performance and energy consumption.
5.3.2 Test conditions 5.3.2.1 General In the following, general testing conditions which are common for all tests specified in Clause 6 carried out inside the test room are defined. These conditions concern the test room, the test and M-packages, and the measuring instruments. 5.3.2.2 Test room一General design, walls, floor and radiant heat The test room shall be a parallelepiped space. The walls of the room shall be thermally insulated. The minimum dimensions of the test room shall be such as to allow at least 0,5 m above the top of the cabinet, 1 m on the side of the climate measuring point, 0,5 m on the opposite side and 1,5 m on the front of the cabinet with doors in closed position (see Figure 4). A minimum insulation level equivalent to 60 mm of rigid polyurethane foam (A = 0,03 W/m °C) should be used for the building of the test room. The floor shall be made of concrete or of thermally equivalent material and/or shall be sufficiently insulated to ensure that external climatic conditions do not affect the floor temperature. Lighting shall be installed to maintain [600士100] lx measured at a height of 1 m above the floor level and shall be lit continuously during the test period. The walls, ceilings and any partitions of rooms intended for the testing of refrigerated cabinets shall have an emissivity between 0,9 and 1 at25 °C.5.3.2.3.3 Temperature gradient The temperature gradient shall be measured with the cabinet operating in the test room and with the doors and drawers closed. Temperatures shall be measured in a vertical line through the climate measuring point. The temperature gradient shall not exceed 2 °C/m and there shall not be a difference of more than 6 °C in the measurements made between the points 150 mm above the floor and 150 mm below the ciling.BS EN ISO 22041 pdf download.