Non-destructive testing of steel tubes. Automatic ultrasonic testing of the weld seam of submerged arc welded steel tubes for the detection of longitudinal and/or transverse imperfections— 14 стр.
Non-destructive testing of steel tubes. Automatic ultrasonic testing of the area adjacent to the weld seam of welded steel tubes for the detection of laminar imperfections— 16 стр.
Refrigerating systems and heat pumps. Safety and environmental requirements. Basic requirements, definitions, classification and selection criteria— 68 стр.
Refrigerating systems and heat pumps. Safety and environmental requirements. Basic requirements, definitions, classification and selection criteria— 68 стр.
Refrigerating systems and heat pumps. Safety and environmental requirements. Basic requirements, definitions, classification and selection criteria— 68 стр.
Safety requirements for electrical equipment for measurement, control and laboratory use. Particular requirements for climatic and environmental testing and other temperature conditioning equipment— 90 стр.
Safety requirements for electrical equipment for measurement, control, and laboratory use. Particular requirements for refrigerating equipment— 50 стр.
BS EN IEC 61010-2-011. Safety requirements for electrical equipment for measurement, control, and laboratory use. Part 2-011. Particular requirements for refrigerating equipment— 50 стр.
Refrigerating systems and heat pumps. Safety and environmental requirements. Basic requirements, definitions, classification and selection criteria— 68 стр.