This standard specifies the classification, requirements, test methods, inspection rules and marking, packaging, transportation and other requirements for graphite pipe sight glasses. This standard applies to graphite pipe sight glasses used in pipelines transporting corrosive media in chemical, petroleum and other industries. It also applies to graphite pipe sight glasses used in pipelines with similar uses in other industries.
HG/T 3206-2009 Referenced Document
GB/T 13465.1 Test method of impermeable graphite materials.Part 1:General of test method for mechanical properties*, 2014-09-03 Update
GB/T 13465.2 Test method of impermeable graphite materials.Part 2:Flexure strength*, 2014-09-03 Update
GB/T 13465.3 Test method of impermeable graphite materials.Part 3:Compress strength*, 2014-09-03 Update
GB/T 1804 General tolerances Tolerances for linear and angular dimensions without individual tolerance indications
GB/T 228 Metallic materials--Tensile testing at ambient temperature
GB/T 232 Metallic materials - Bend test methods*, 2024-03-15 Update
HG/T 2059-2004 Technical regulations for imperious graphite tube
HG/T 2370-2005 Specification of graphite chemical process equipment
HG/T 2642 Test method for tensile strength of impermeable graphite materials