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Standard: GB20266-2006
These products are made from natural rubber and other raw materials which have no chemical reactions with acid (alkali). They are suitable for acid (alkali)-related operation. Electrical insulation can be added at the customers request.
Main Norm
acid(alkali) materials | Immersion time | Mpa% Tensile strength ↓ Mpa% | Elongation at Break ↓ % | IRHD Hardness ↓ (IRHD) | Quality change% |
H2SO4·3.7mol/l eqvl30 | 70±2h | ≤15 | ≤20 | ≤±10 | ≤2 |
HCL610mol/1 eqvl20 | 70±2h | ≤15 | ≤20 | ≤±10 | ≤2 |
NAOH611mol/1 eqvl20 | 70±2h | ≤15 | ≤20 | ≤±10 | ≤2 |