: Per the ASTM D1784 standard , this five-digit code defines the material's physical properties: 2 : Base resin (CPVC). 4 : Impact strength (at least 5.0 ft-lb/in). 4 : Tensile strength (at least 7,000 psi). 4 : Modulus of elasticity (at least 360,000 psi). 8 : Heat deflection temperature (at least 230°F).
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: While the standard minimum classification is 23447, the 24448 rating signifies superior impact resistance and higher temperature capabilities, often used in Ultra-Pure® CPVC for critical water distribution. 2. International Standards: ISO 24448:2023 : Per the ASTM D1784 standard
