This standard specifies the classification, requirements, test methods, inspection rules and marking, packaging, transportation and other requirements for spools made of impermeable graphite (impregnated, pressed). This standard applies to graphite crosses made of impermeable graphite materials (impregnated, pressed) used in pipelines transporting corrosive media in chemical, petroleum and other industries. It also applies to non-permeable graphite crosses in pipelines for similar purposes in other industries. Permeable graphite cross.
HG/T 3195-2009 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
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