GB/T 1685-1982
Replaced
GB/T 39693.3-2021
Active
National standards
GB/T 39693.3-2021 Rubber,vulcanized or thermoplastic—Determination of hardness Part 3:Dead-load hardness using the very low rubber hardness(VLRH) scale
GB/T 39693.3-2021 Rubber,vulcanized or thermoplastic—Determination of hardness Part 3:Dead-load hardness using the very low rubber hardness(VLRH) scale
Basic Information
Standard Code:
GB/T 39693.3-2021
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Rubber products and their auxiliary materials
ICS Name:
Rubber
Publish Date:
2021-03-09
Implement Date:
2021-10-01
Pages:
12 pages
Scope
This part of GB/T 39693 specifies a method for measuring the hardness of ultra-soft vulcanized rubber or thermoplastic rubber using a very low rubber hardness (VLRH) scale. The depth of penetration of the spherical indenter is linearly related to the VLRH scale.
Development Information
Same series standard
Referenced Standards
ISO 48-9:2018
ISO 18899
ISO 23529
Adopt standards
ISO 48-3:2018
Related Standards
GB/T 3515-1983
Replaced
GB/T 3515-1983 Rubber, vulcanized—determination of carbon black content—pyrolytic method
GB/T 4497-1984
Replaced
GB/T 4497-1984 Vulcanized rubber—Determination of total sulphur content—Oxygen combustion flask method
GB/T 6030-1985
Replaced
GB/T 6030-1985 Vulcanized rubber—Determination of carbon black dispersion—Micrographic method
GB 5577-1985
Replaced
GB 5577-1985 Codification of types for synthetic rubbers
GB/T 1688-1986
Replaced