T/ZZAS 005-2019 Active Group standards

T/ZZAS 005-2019 Natural Rubber (SCR10, SCR20) Properties and Test Methods

Publish Date: 2019-09-06 Implement Date: 2019-09-26 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/ZZAS 005-2019

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Forestry

ICS Name: The experimental conditions and procedures are summarized here

Publish Date: 2019-09-06

Implement Date: 2019-09-26

Scope

Main technical content: This standard provides the physical property requirements and test methods for No. 10 rubber (SCR10) and No. 20 rubber (SCR20) specified in GB/T 8081-2018 Natural Rubber Technical Classification Rubber (TSR). This standard is applicable to the inspection of No. 10 rubber (SCR10) and No. 20 rubber (SCR20) specified in GB/T 8081-2018 Natural Rubber Technical Classification Rubber (TSR). Table 1 Physical Property Requirements and Test Methods | Property | No. 10 rubber (SCR10) | No. 20 rubber (SCR20) | Test method | | :--- | :--- | :--- | :--- | | Tensile strength (143℃ × 20’)/MPa | ≥22.0 | ≥20.0 | GB/T 528-2009 (dumbbell-shaped specimen) | | Tensile strength (143℃ × 30’)/MPa | ≥22.0 | ≥20.0 | GB/T 528-2009 (dumbbell-shaped specimen) | | Elongation at break (143℃ × 20’)/% | ≥650 | ≥650 | GB/T 528-2009 (dumbbell-shaped specimen) | | Elongation at break (143℃ × 30’)/% | ≥650 | ≥650 | GB/T 528-2009 (dumbbell-shaped specimen) | | Hardness (143℃ × 20’)/Shore A | 39±3 | 39±3 | GB/T 531.1-2008 | | Hardness (143℃ × 30’)/Shore A | 39±3 | 39±3 | GB/T 531.1-2008 |