GB/T 8089-1987
Replaced
GB/T 8658-2025
Active
National standards
GB/T 8658-2025 Rubber,raw styrene-butadiene,emulsion-polymerized—Determination of bound styrene content—Refractive index method
GB/T 8658-2025 Rubber,raw styrene-butadiene,emulsion-polymerized—Determination of bound styrene content—Refractive index method
Price:
$ 54
Basic Information
Standard Code:
GB/T 8658-2025
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Synthetic rubber
ICS Name:
Rubber latex and raw rubber
Publish Date:
2025-08-29
Implement Date:
2026-03-01
Pages:
16 pages
Scope
This document describes a method for determining the amount of bound styrene in styrene-butadiene rubber (SBR).
This document is suitable for determining the amount of bound styrene in emulsion-polymerized SBR. If thin films suitable for refractive index measurement can be produced, it is also suitable for extracted oil-filled emulsion-polymerized SBR.
This document is not suitable for solution-polymerized SBR.
Development Information
Replace the following standards
Referenced Standards
Adopt standards
ISO 2453:2020
Related Standards
GB/T 8090-1987
Replaced
GB/T 8090-1987 Raw natural rubber—White crepes and pale crepes
GB/T 8083-1987
Replaced
GB/T 8083-1987 Raw natural rubber—Standard rubber—Sampling
GB/T 8084-1987
Abolished
GB/T 8084-1987 Raw natural rubber—Sample preparation
GB/T 8086-1987
Replaced
GB/T 8086-1987 Raw natural rubber—Determination of dirt
GB/T 8290-1987
Replaced