GB/T 3215-2007 Centrifugal pumps for petroleum petrochemical and natural gas industries

GB/T 3215-1982 Centrifugal pumps for refinery, chemical and petrochemical processes General technical specifications

GB/T 3215-2019 Centrifugal pumps for petroleum,petrochemical and natural gas industries

GB/T 193-2003 General purpose metric screw threads—General plan GB/T 196-2003 General purpose metric screw threads—Basic dimensions GB/T 196-2025 General purpose metric screw threads—Basic dimensions GB/T 197-2003 General purpose metric screw threads—Tolerances GB/T 197-2018 General purpose metric screw threads—Tolerances 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/T 1800.1-1997 Limits and fits—Bases—Part 1:Terminology GB/T 1800.1-2009 Geometrical Product Specifications (GPS)—Limits and fits—Part 1:Bases of tolerances,deviations and fits GB/T 1800.1-2020 Geometrical product specifications (GPS)—ISO code system for tolerances on linear sizes—Part 1:Basis of tolerances, deviations and fits GB/T 1800.2-1998 Limits and fits—Bases—Part 2:Basic rules of tolerances, deviations and fits GB/T 1800.2-2009 Geometrical Product Specifications (GPS)—Limits and fits—Part 2:Tables of standard tolerance grades and limit deviations for holes and shafts GB/T 1800.2-2020 Geometrical product specifications(GPS)—ISO code system for tolerances on linear sizes—Part 2:Tables of standard tolerance classes and limit deviations for holes and shafts GB/T 1800.3-1998 Limits and fits—Bases—Part 3:Numerical values tables of standard tolerances and fundamental deviations GB/T 1800.4-1999 Limits and fits Tables of standard tolerance grades and limit deviations for holes and shafts GB/T 2516-2003 General purpose metric screw threads—Limit deviations GB/T 2516-2023 General purpose metric screw threads—Limit deviations GB/T 3216-2005 Rotodynamic pumps—Hydraulic performance acceptance tests—Grades 1 and 2 GB/T 3216-2016 Rotodynamic pumps—Hydraulic performance acceptance tests—Grades 1,2 and 3 GB 3836.1-2000 Electrical apparatus for explosive gas atmospheres—Part 1:General requirements GB 3836.1-2010 Explosive atmospheres—Part 1:Equipment—General requirements GB/T 3836.1-2021 Explosive atmospheres—Part 1:Equipment—General requirements GB 3836.2-2000 Electrical apparatus for explosive gas atmospheres—Part 2:Flameproof enclosure “d” GB 3836.2-2010 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures "d" GB/T 3836.2-2021 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures “d” GB 3836.3-2000 Electrical apparatus for explosive gas atmospheres—Part 3:Increased safety “e” GB 3836.3-2010 Explosive atmospheres—Part 3:Equipment protection by increased safety "e" GB/T 3836.3-2021 Explosive atmospheres—Part 3:Equipment protection by increased safety “e” GB 3836.4-2000 Electrical apparatus for explosive gas atmospheres—Part 4:Intrinsic safety“i” GB 3836.4-2010 Explosive atmospheres—Part 4:Equipment protection by intrinsic safety "i" GB/T 3836.4-2021 Explosive atmospheres—art 4:Equipment protection by intrinsic safety “i” GB 3836.5-2004 Electrical apparatus for explosive gas atmosphere—Part 5:Pressurized enclosures"p" GB/T 3836.5-2017 Explosive atmospheres—Part 5:Equipment protection by pressurized enclosure"p" GB/T 3836.5-2021 Explosive atmospheres—Part 5:Equipment protection by pressurized enclosure "p" GB 3836.6-2004 Electrical apparatus for explosive gas atmospheres—Part 6:Oil-immersion"o" GB/T 3836.6-2017 Explosive atmospheres—Part 6:Equipment protection by liquid immersion“o” GB 3836.7-2004 Electrical apparatus for explosive gas atmospheres—Part 7:Powder filling"q" GB/T 3836.7-2017 Explosive atmospheres—Part 7:Equipment protection by powder filling“q” GB 3836.8-2003 Electrical apparatus for explosive gas atmospheres—Part 8:Type of protection “n” GB 3836.8-2014 Explosive atmospheres—Part 8:Equipment protection by type of protection “n” GB/T 3836.8-2021 Explosive atmospheres—Part 8: Equipment protection by type of protection “n” GB 3836.9-1990 Electrical apparatus for explosive atmospheres Encapsulated electrical apparatus "m" GB 3836.9-2006 Electrical apparatus for explosive gas atmospheres—Part 9:Encapsulation "m" GB 3836.9-2014 Explosive atmospheres—Part 9:Equipment protection by type of protection “m” GB/T 3836.9-2021 Explosive atmospheres—Part 9:Equipment protection by encapsulation “m” GB 3836.11-1991 Electrical apparatus for explosive atmospheres-Method of test for ascertainment of maximum experimental safe gap GB/T 3836.11-2008 Explosive atmospheres—Part 11:Equipment protection by flameproof enclosures “d”—Method of test for ascertainment of maximum experimental safe gap GB/T 20801.2-2020 Pressure piping code—Industrial piping—Part 2:Materials GB/T 20801.3-2006 Pressure piping code—Industrial piping—Part 3:Design and calculation GB/T 20801.3-2020 Pressure piping code—Industrial piping—Part 3:Design and calculation GB/T 20801.4-2006 Pressure piping code—Industrial piping—Part 4:Fabrication and assembly GB/T 20801.4-2020 Pressure piping code—Industrial piping—Part 4:Fabrication and assembly GB/T 20801.5-2006 Pressure piping code—Industrial piping—Part 5:Inspection and testing GB/T 20801.5-2020 Pressure piping code—Industrial piping—Part 5:Inspection and testing GB/T 20801.5-2025 Pressure piping code—Part 5:Hydrogen piping and pipelines GB/T 20801.6-2006 Pressure piping code—Industrial piping—Part 6:Safeguarding GB/T 20801.6-2020 Pressure piping code—Industrial piping—Part 6:Safeguarding ISO 281 ISO 8501 ISO 10436 ISO 10438 ISO 10441 ISO 14691 ISO 21049 ABMA 7 AGMA 9000 AGMA 9002 API 541 API 611 API 670 API 671 API 677 ASME B1.1 ASME B15.1 ASME B16.1 ASME B16.5 ASME B16.11 ASME B17.1 IEEE 841 NFPA 70