2011DIN 18872-4:2011-05 Equipment for commercial kitchens - Refrigeration technology equipment - Part 4: Refrigerators and freezers; Requirements and testing
2011DIN 18872-4:2011 Equipment for commercial kitchens - Refrigeration technology equipment - Part 4: Refrigerators and freezers; Requirements and testing
1970DIN 18872-4 E:2009-03 Equipment for commercial kitchens - Refrigeration technology equipment - Part 4: Refrigerators and freezers; Requirements and testing