CJ/T 294-2018 Rotating disc aerator

CJ/T 294-2008 Rotating disc aerator

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 288-1994 Rolling bearings—Self-aligning roller bearings—Boundary dimensions GB/T 288-2013 Rolling bearings—Self-aligning roller bearings—Boundary dimensions GB 755-2000 Rotating electrical machines—Rating and performance GB/T 755-2008 Rotating electrical machines—Rating and performance GB/T 755-2019 Rotating electrical machines—Rating and performance GB/T 755-2025 Rotating electrical machines—Rating and performance GB/T 755.2-2003 Methods for determining losses and efficiency of rotating electrical machinery from tests(excluding machines for traction vehicles) GB 3087-1999 Seamless steel tubes for low and medium pressure GB/T 3087-2008 Seamless steel tubes for low and medium pressure boiler GB/T 3087-2022 Seamless steel tubes and pipes for low and medium pressure boiler GB/T 3768-1996 Acoustics—Determination of sound power levels of noise sources using sound pressure—Survey method using an enveloping measurement surface over a reflecting plane GB/T 3768-2017 Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Survey method using an enveloping measurement surface over a reflecting plane GB/T 3797-2005 Electrical control assemblies GB/T 3797-2016 Electrical control assemblies GB 4208-1993 Degrees of protection provided by enclosure (IP code) GB/T 4208-2008 Degrees of protection provided by enclosure(IP code) GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 4942.1-2001 Classification of degrees of protection provided by enclosures of rotating electrical machines (IP code) GB/T 4942.1-2006 Degrees of protection provided by the integral design of rotating electrical machined(IP code)—Classification GB 5226.1-2002 Safety of machinery—Electrical equipment of machines—Part 1:General requirements GB 5226.1-2008 Electrical safety of machinery—Electrical equipment of machines—Part 1:General requirements GB/T 5226.1-2019 Electrical safety of machinery—Electrical equipment of machines—Part 1:General requirements GB 7324-1994 General purpose lithium lubricating grease GB/T 7324-2010 General purpose lithium lubricating grease GB/T 8162-1999 Seamless steel tubes for structural purposes GB/T 8162-2008 Seamless steel tubes for structural purposes GB/T 8162-2018 Seamless steel tubes for structural purposes GB/T 8923.1-2011 Preparation of steel substrates before application of paints and related products—Visual assessment of surface cleanliness—Part 1:Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings GB 12670-1990 Polypropylene resin GB/T 12670-2008 Polypropylene(PP) resin GB 12671-1990 Polystyrene resin GB/T 12671-2008 Polystyrene (PS) resin GB/T 13306-1991 Plates GB/T 13306-2011 Plates GB/T 13384-1992 General specifications for packagings of mechanical and electrical products GB/T 13384-2008 General specifications for packing of mechanical and electrical product GB 18613-2002 Limited values of energy efficiency and evaluating values of energy conservation of small and medium three-phase asynchronous motors GB 18613-2006 Minimum allowable values of energy efficiency and the energy efficiency grades for small and medium three-phase asynchronous motors GB 18613-2012 Minimum allowable values of energy efficiency and energy efficiency grades for small and medium three-phase asynchronous motors GB 18613-2020 Minimum allowable values of energy efficiency and values of efficiency grades for motors GB 50231-1998 General code for construction and acceptance of mechanical equipment installation engineering GB 50231-2009 General code for construction and acceptance of mechanical equipment installation engineering CJ/T 475-2015 Measurement of oxygen mass transfer in clean water for fine bubble diffuser JB/T 5000.6-2007 Heavy Machinery General Technical Conditions Part 6: Cast Steel Parts JB/T 5000.6-1998 Heavy Machinery General Technical Specification for Cast Steel Parts JB/T 5000.12-1998 Heavy Machinery General Technical Specification for Painting JB/T 5000.12-2007 Heavy mechanical general techniques and standards-Part 12:Paint JB/T 8874-2010 JB/T 8874-2000 JB/T 8874-2000 Rolling Bearing Bush Technical Specification