This standard specifies test methods for size measurement , hardness, tensile property, hot air aging, constant deformation compression set, corrosion and liquid resistance, density, shrinkage , low temperature test and compression relaxation of solid vulcanized rubber O-ring.
This standard is applicable to solid vulcanized rubber O-ring (hereinafter referred to as O-ring).
2 Normative References
The following documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply. However, the parties who enter into agreement according to this part are encouraged to research whether the latest editions of these documents may be applied. For undated references, the latest edition referred to apply.
GB/T 528-1998 Rubber，Vulcanized or Thermoplastic-Determination of Tensile Stress-Strain Properties (eqv ISO 37:1994)
GB/T 533-1991 Rubber Vulcanized or Thermoplastic-Determination of Density (ISO 2781:2007, IDT)
GB/T 1690-1992 Rubber, Vulcanized-Determination of the Effect of Liquids (neq ISO 1817)
GB/T 2941-2006 Rubber-General Procedures for Preparing and Conditioning Test Pieces for Physical Test Methods (ISO 23529:2004, IDT)
GB/T 3452.2-2007 Fluid Power Systems-O-rings-Part 2: Quality Acceptance Criteria (ISO 3601-3:2005, IDT)
GB/T 3512-2001 Rubber, Vulcanized or Thermoplastic-Accelerated Ageing and Heat Resistance Tests-Air-oven Method(eqv ISO 188:1998)
GB/T 6031-1998 Rubber, Vulcanized or Thermoplastic-Determination of Hardness (Hardness between 10IRHD and 100IRHD) (idt ISO 48:1994)
GB/T 7758-2002 Rubber, vulcanized--Determination of Low-Temperature Characteristics-Temperature-Retraction Procedure (TR Test) (ISO 2927:1997, IDT)
GB/T 7759-1996 Rubber, Vulcanized or Thermoplastic-Determination of Compression Set at Ambient Elevated or Low Temperatures (eqv ISO 815:1991)
GB/T 13643-1992 Rubber, Vulcanized or Thermoplastic-Determination of Compressions Tress Relaxation(Rings) (eqv ISO 6059:1987)
HG/T 2369-1992 Rubber Plastic Tensile Tester Technical Conditions
3 Requirements for Sample and Test Condition
3.1 Requirements for sample
3.1.1 Sample is prepared according to the requirements of GB/T 2941-2006.
3.1.2 Appearance quality of the sample shall meet the requirements of GB/T 3452.2-2007, Grade N.
3.1.3 The samples tested for hardness, tensile property, hot air aging, constant deformation compression set, corrosion test, liquid resistance, density, shrinkage rate, low temperature test and compression stress relaxation are detailed in 5.1.2, 5.2.2, 5.3.2, 5.4.2, 5.5.2, 5.6.2, 5.7.2, 5.8.2, 5.9.2 and GB/T 13643-1992, 4.1.3.
3.2 Test condition
Environmental conditioning of sample and test temperature and time shall be carried out in accordance with GB/T 2941-2006.
