GB/T 12672-2009 Acrylonitrile-butadiene-styrene (ABS) resin
1 Scope
This standard specifies the classification and designation, requirements, test methods, inspection rules, marking, packaging, transportation and storage of acrylonitrile-butadiene-styrene (ABS) resins (ABS resin).
This standard applies to ABS resins composed of styrene and acrylonitrile copolymers as continuous phases, and polybutadiene and a certain number of other components as dispersed phases.
This standard does not apply to flame retardant, reinforced or otherwise modified ABS resins.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply to this standard. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies.
GB/T 1040.2-2006 Plastics - Determination of tensile properties - Part 2: Test conditions for moulding and extrusion plastics (ISO 527-21993, IDT)
GB/T 1043.1-2008 Plastics - Determination of charpy impact properties - Part 1: Non-instrumented impact test
GB/T 1633-2000 Plastics - Thermoplastic materials - Determination of Vicat softening temperature (VST) (idt ISO 306: 1994)
GB/T 2547-2008 Plastic resins - Sampling
GB/T 2918-1998 Plastics - Standard atmospheres for conditioning and testing (ISO 291: 1997, IDT)
GB/T 3398.2-2008 Plastics - Determination of hardness - Part 2: Rockwell hardness (ISO 2039-2: 1987, IDT)
GB/T 3682-2000 Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics (idt ISO 1133: 1997)
GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 9341-2008 Plastic - Determination of flexural properties ((ISO 178: 2001, IDT)
GB/T 17037.1-1997 Plastics - Injection moulding of test test pieces of thermoplastic materials - Part 1: General principles, and moulding of multipurpose and bar test test pieces (idt ISO 294-1: 1996)
GB/T 20417.1-2008 Plastics - Acrylonitrile-butadiene-styrene(ABS) moulding and extrusion materials － Part 1: Designation system and basis for specifications (ISO 2580-1: 2002, MOD)
GB/T 20417.2-2006 Plastics - Acrylonitrile-butadiene-styrene (ABS) moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties (ISO 2580-2: 2003, MOD)
SH/T 1541-2006 Test method for appearance of thermoplastic granules
3 Classification and designation
The classification and designation of ABS resins shall comply with GB/T 20417.1-2008.
Example: An acrylonitrile-butadiene-styrene (ABS) molding material, recommended for injection molding (m), with natural color (N), a Vicat softening temperature (VST) of 97 ℃ (095), a melt mass flow rate of 17g/10min (15), and a notch impact strength of simply supported beam of 25kJ/m2(25), and a tensile elastic modulus less than or equal to 1800 MPa (15), is designated as:
Foreword i
1 Scope
2 Normative References
3 Classification and designation
4 Requirements
5 Test method
6 Inspection rules
7 Marking
8 Packaging, transportation and storage
Annex A (Informative) Comparison between national standard naming of ABS resin products and enterprise commodity designations
