GB/T 14294-1993 Central-station air handling units

GB/T 14294-2008 Central-station air handling units

GB 8070 GB 10223 GB 12218 GB/T 1236-2000 Industrial fans—Performance testing using standardized airways GB/T 1236-2017 Industrial fan—Performance testing using standardized airways GB/T 1449-2005 Fibre-reinforced plastic composites—Determination of flexural properties GB/T 2406-1993 Plastics—Determination of flammability by oxygen index GB/T 2406.1-2008 Plastics—Determination of burning behaviour by oxygen index—Part 1:Guidance GB/T 2406.2-2009 Plastics—Determination of burning behaviour by oxygen index—Part 2:Ambient-temperature test GB/T 2406.3-2022 Plastics—Determination of burning behaviour by oxygen index—Part 3:Elevated-temperature test GB/T 2576-1989 Test method for insoluble matter content of resin used in fiber reinforced plastics GB/T 2576-2005 Test method for insoluble matter content of resin used in fiber reinforced plastics GB/T 2577-1989 Test method for resin content of glass fiber reinforced plastics GB/T 2577-2005 Test method for resin content of glass fiber reinforced plastics GB/T 2624-1993 Measurement of fluid flow by means of orifice plates, nozzles and Venturi tubes inserted in circular cross-section conduits running full GB/T 2624.1-2006 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full—Part 1:General principles and requirements GB/T 2624.2-2006 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full—Part 2:Orifice plates GB/T 2624.3-2006 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full—Part 3:Nozzles and Venturi nozzles GB/T 2624.4-2006 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full—Part 4:Venturi tubes GB/T 2624.6-2024 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full—Part 6:Wedge devices GB/T 2624.5-2024 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full—Part 5:Cone devices GB/T 10891-2025 Refrigerating systems and heat pumps—Environmental adaptability requirements GB/T 9068-2025 Determination of sound power levels of refrigeration and air-conditioning equipment—Sound pressure methods GB/T 2406.4-2025 Plastics—Determination of burning behaviour by oxygen index—Part 4:High gas velocity test