JG/T 258-2018 Nonmetallic and foil-insulant composite air duct

JG/T 258-2009 Nonmetallic and foil-insulant composite duct

GB 15930-2007 Fire dampers for building venting and smoke-venting system JC/T 939 GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods 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 8624-1997 Classification on burning behaviors for building materials GB 8624-2006 Classification for burning behavior of building materials and products GB 8624-2012 Classification for burning behavior of building materials and products GB/T 9969-2008 General principles for preparation of instructions for use of industrial products GB 9969.1-1998 General principles for preparation of instructions for use of industrial products GB/T 9978.1-2008 Fire-resistance tests—Elements of building construction—Part 1:General requirements GB/T 10294-1988 Thermal insulation—Determination of steady-state thermal resistance and related properties—Guarded hot plate apparatus GB/T 10294-2008 Thermal insulation—Determination of steady-state thermal resistance and related properties—Guarded hot plate apparatus GB/T 12703.4-2010 Textile—Evaluation for electrostatic properties—Part 4:Resistivity GB/T 18696.1-2004 Acoustics—Determination of sound absorption coefficient and impedance in impedance tubes—Part 1:Method using standing wave ratio GB/T 18883-2002 Indoor air quality standard GB/T 18883-2022 Standards for indoor air quality GB/T 24346-2009 Textiles—Evaluation for anti-mould activity QB/T 2591-2003 Antimicrobial plastics-Test for antimicrobial activity and efficacy JGJ/T 141-2017 Technical specification for air duct GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB 8624-2025 Classification for burning behavior of building materials and products