New ASTM Standard for Hydrophilic Gaskets Approved and Updates to ASTM F2561

Ottawa, IL — ASTM International, one of the world’s leading industrial standard-setting organizations, recently took favorable action on two standard practice proposals for the trenchless rehabilitation of the connection of a sewer lateral to a main using hydrophilic gaskets.

The first of these standards, ASTM F3240, is the standard practice for installation of seamless molded hydrophilic gaskets (SMHG) for long-term watertightness of cured-in-place rehabilitation of main and lateral pipelines. ASTM F3240 is the first and only ASTM standard that addresses seamless molded hydrophilic gasket sealing for all terminating ends of CIPP (mainline and lateral). This standard is guiding the industry to achieve long-term watertight rehabilitations and make cured-in-place pipe more comparable to new pipe more than ever before.

This practice covers the materials and the installation of a gasket with hydrophilic properties, positioned between the host pipe and the liner, which has been molded without seams into various shapes such as an elongated sleeve (end seal), Connection Seal (hydro hat), or O-Ring to form a long-term watertight seal to prevent infiltration and exfiltration. LMK Technologies is one of three companies that currently supply ASTM F3240 compliant materials.

This practice covers the materials and the installation of a gasket with hydrophilic properties, positioned between the host pipe and the liner, which has been molded without seams into various shapes such as an elongated sleeve (end seal), Connection Seal (hydro hat), or O-Ring to form a long-term watertight seal to prevent infiltration and exfiltration. LMK Technologies is one of three companies that currently supply ASTM F3240 compliant materials.

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