HG/T 5629-2019 Ultra-high molecular weight polyethylene (PE-UHMW) liner
1 Scope
This standard specifies the classification, dimensions, requirements, testing methods, inspection rules, signs, packaging, transportation and storage of ultra-high molecular weight polyethylene (PE-UHMW) liner (abbreviated as " liner").
This standard is applicable to the liner molding or extrusion with ultra-high molecular weight polyethylene as the main material.
This standard is applicable to the liner contacted with solid powder, particles, chemical media under the temperature at most 50 ℃ and special industrial fluids (such as industrial
waste water, pulp, crude oil, cryogenic fluid, etc.).
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 1033.1 Plastics - Methods for determining the density of non-cellular plastics-Part 1:lmmersion method，liquid pyknometer method and titration method
GB/T 1040.2-2006 Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and extrusion plastics
GB/T 1041 Plastics - Determination of compressive properties
GB/T 2411 Plastics and ebonite - Determination of indentation hardness by means of a durometer(shore hardness)
GB/T 2828.1-2012 Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
GB/T 2918 Plastics - standard atmospheres for conditioning and testing
GB/T 3960 Plastics - Test method for friction and wear by sliding
GB/T 6671-2001 Thermoplastics pipes - Determination of longitudinal reversion
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 21461.2 Plastics - Ultra-high-molecular-weight polyethylene (PE-UHMW) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties
MT/T 181 Code for safety performance inspection of plastic pipes used underground in coal
Mines
SH/T 1818 Plastics - Test method for abrasion properties of ultra-high-molecular-weight
polyethylene (PE-UHMW) in abrasive/water slurry
3 Classification
Five types of the products are divided as follows in different uses:
——CGB-1: General purpose liner;
——CGB-2: Liner for gasket, sealing and lubrication;
——CGB-3: High wear resistant liner;
——CGB-4: Halogen free flame retardant functional liner;
——CGB-5: Antistatic functional liner.
4 Dimensions
The overall dimensions of li
