UL 194:2016 pdf download.Gasketed Joints for Ductile-Iron Pipe and Fittings for Fire Protection Service.
9A NonmetallIc Materials Test
9A.1 Plastic or other nonmetallic parts (excluding rubber and synthetic elastomers) that are intended to function as active components in the joint shall meet the requirements of this section. This includes but is not limited to components used In the joint restraint or sealing gaskets containing plastic components that are not fully encapsulated.
9A.2 Following air-oven aging for 180 days at 121 °C (250 °F), there shall be no warping. creeping, or other signs of deterioration of a plastic component that may impair the intended operation of the product. There shall be no cracking of any plastic component. A joint with aged plastic components shall demonstrate acceptable performance when subjected to the Leakage Test, Section 11 and the Assembly Test, Section 12 for push-on joints.
9A.3 The plastic components to be aged are to be supported in a full-draft, circulating-air oven that has been preheated at full draft, to 121 ±1 °C (250 ±1.8 F). The manufacturer may exclude the elastomenc portions of a component from aging. The manner of support is to be such that the samples are prevented from touching one another or the sides of the oven. ibe samples are to be aged for 180 days at full draft and then allowed to cool in air at 23 ±2 °C (734 ±3.6 °F) for at least 24 hours before conducting any test or dimensional check. As used In this test, the term “full draft” refers to the air flow over the samples In the oven with the air inlet and outlets fully open. The oven used for accelerated aging is to be Type lIA as specified in the Standard Specification for Gravity-Convection and Forced-Ventilation Ovens. ASTM E145.
9A.1 Plastic or other nonmetallic parts (excluding rubber and synthetic elastomers) that are intended to function as active components in the joint shall meet the requirements of this section. This includes but is not limited to components used In the joint restraint or sealing gaskets containing plastic components that are not fully encapsulated.
9A.2 Following air-oven aging for 180 days at 121 °C (250 °F), there shall be no warping. creeping, or other signs of deterioration of a plastic component that may impair the intended operation of the product. There shall be no cracking of any plastic component. A joint with aged plastic components shall demonstrate acceptable performance when subjected to the Leakage Test, Section 11 and the Assembly Test, Section 12 for push-on joints.
9A.3 The plastic components to be aged are to be supported in a full-draft, circulating-air oven that has been preheated at full draft, to 121 ±1 °C (250 ±1.8 F). The manufacturer may exclude the elastomenc portions of a component from aging. The manner of support is to be such that the samples are prevented from touching one another or the sides of the oven. ibe samples are to be aged for 180 days at full draft and then allowed to cool in air at 23 ±2 °C (734 ±3.6 °F) for at least 24 hours before conducting any test or dimensional check. As used In this test, the term “full draft” refers to the air flow over the samples In the oven with the air inlet and outlets fully open. The oven used for accelerated aging is to be Type lIA as specified in the Standard Specification for Gravity-Convection and Forced-Ventilation Ovens. ASTM E145.
