This standard specifies the product structure and classification, basic parameters, technical requirements, test methods, inspection rules, marking, packaging and storage of electromagnetic flowmeters (hereinafter referred to as flowmeters). This standard applies to electromagnetic flowmeters that measure conductive liquid flow in closed pipes. This standard does not apply to insertion electromagnetic flowmeters and electromagnetic flowmeters used for open channel flow measurement.
GB 3836.11 Explosive atmospheres.Part11:Equipment protection by flameproof enclosures"d"method of test for ascertainment of maximum experimental safe gap
GB 3836.12 Explosive atmospheres.Part 12:Classification of mixtures of gases or vapours with air according to their maximum experimental safe gaps and minimum igniting current
GB 3836.13 Explosive atmospheres.Part 13:Equipment repair, overhaul and reclamation
GB 3836.14 Explosive atmospheres.Part 14:Classification of areas.Explosive gas atmosphere
GB 3836.15 Electrical apparatus for explosive gas atmospheres. Part 15: Electrical installation in hazardous areas (other than mines)
GB 3836.16 Electrical apparatus for explosive gas atmospheres.Part 16:Inspection and maintenance of electrical installation(other than mines)
GB 3836.17 Electrical apparatus for explosive gas atmosphere Part 17: Construction and use of rooms or buildings protected by pressurization
GB 3836.18 Explosive atmospheres.Part 18:Intrinsically safe system
GB 3836.2 Explosive atmospheres.Part 2:Equipment protection by flameproof enclosures "d"
GB 3836.20 Explosive atmospheres.Part 20:Equipment with equipment protection level(EPL)Ga
GB 3836.3 Explosive atmospheres.Part 3:Equipment protection by increased safety "e"
GB 3836.4 Explosive atmospheres.Part 4:Equipment protection by intrinsic safety "i"
GB 3836.5 Electrical apparatus for explosive gas atmosphere-Part 5:Pressurized enclosures"p"
GB 3836.6 Electrical apparatus for explosive gas atmospheres-Part 6:Oil-immersion"o"
GB 3836.7 Electrical apparatus for explosive gas atmospheres-Part 7:Power filling"q"
GB 3836.8 Explosive atmospheres.Part 8: Equipment protection by type of protection “n”
GB 3836.9 Explosive atmospheres.Part 9:Equipment protection by type of protection "m"
GB 4208-2008 Degrees of protection provided by enclosure(IP code)
GB/T 13384-2008 General specifications for packing of mechanical and electrical product
GB/T 17626.11 Electromagnetic Compatibility Testing and Measurement Techniques Part 11: Voltage Dips, Short Interruptions and Voltage Variation Immunity Tests for Equipment with Input Current Less than or Equal to 16 A per Phase*， 2023-05-23 Update
GB/T 17626.3 Electromagnetic compatibility test and measurement technology Part 3: Radio frequency electromagnetic field radiation immunity test*， 2023-12-28 Update
GB/T 17626.4 Electromagnetic compatibility－Testing and measurement techniques－Electrical fast transient/burst immunity test*， 2018-06-07 Update
GB/T 17626.8 Electromagnetic compatibility Testing and measurement techniques Power frequency magnetic field immunity test
GB/T 18271.3 Process measurement and control devices—General methods and procedures for evaluating performance—Part 3: Tests for the effects of influence quantities*， 2017-07-12 Update
GB/T 18659-2002 Measurement of fluid flow in closed conduits--Methods of evaluating the performance of electromagnetic flow-meters for liquids
GB/T 191-2008 Packaging.Pictorial marking for handling of goods
GB/T 20729-2006 Measurement of conductive liquid flow in closed conduits Flanged electromagnetic flowmeters Overall length
GB/T 25474-2010 Values of nominal size for industrial process measurement and control instruments
GB/T 25480-2010 Basic environmental conditions and testing methods for transportation and storage of instruments
GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability)
GB/T 9112-2010 Types and parameters for steel pipe flanges