ISO 4658:2020 PDF

Scope: This document specifies, for acrylonitrile-butadiene rubbers (NBRs): — physical and chemical tests on raw rubbers; — standard materials, a standard test formulation, equipment and processing methods for evaluating the vulcanization characteristics. The mixing preferred method is the single stage mixing with LIM (laboratory internal mixer).

ISO 4658:2020 Referenced Document

ISO 1795 Rubber, raw natural and raw synthetic - Sampling and further preparative procedures
ISO 23529 Rubber - General procedures for preparing and conditioning test pieces for physical test methods
ISO 2393 Rubber test mixes - Preparation, mixing and vulcanization - Equipment and procedures
ISO 247-1 Rubber - Determination of ash - Part 1: Combustion method
ISO 247-2 Rubber - Determination of ash - Part 2: Thermogravimetric analysis (TGA)
ISO 248-1 Rubber, raw - Determination of volatile-matter content - Part 1: Hot-mill method and oven method*， 2021-06-01 Update
ISO 248-2 Rubber, raw — Determination of volatile-matter content — Part 2: Thermogravimetric methods using an automatic analyser with an infrared drying unit
ISO 289-1 Rubber, unvulcanized - Determinations using a shearing-disc viscometer - Part 1: Determination of Mooney viscosity
ISO 37 Rubber, vulcanized or thermoplastic - Determination of tensile stress-strain properties
ISO 6502-2 Rubber - Measurement of vulcanization characteristics using curemeters - Part 2: Oscillating disc curemeter
ISO 6502-3 Rubber — Measurement of vulcanization characteristics using curemeters — Part 3: Rotorless curemeter*， 2023-01-13 Update

2020 ISO 4658:2020 Acrylonitrile-butadiene rubber (NBR) — Evaluation procedure
2004 ISO 4658:1999/Amd 1:2004 Acrylonitrile-butadiene rubber (NBR) - Evaluation procedure; Amendment 1
1999 ISO 4658:1999 Acrylonitrile-butadiene rubber (NBR) - Evaluation procedure
1990 ISO 4658:1990 Rubber, acrylonitrile-butadiene (NBR); evaluation procedure
1980 ISO 4658:1980 Rubber, acrylonitrile-butadiene (NBR) — Test recipe and evaluation of vulcanization characteristics