ASTM F1144:19 pdf download

ASTM F1144:2019 pdf download.Standard Specification for Manhole Cover Assembly,Bolted, Semi-Flush,Oiltight and Watertight, Hinged.
6.7 Pouer pin to be in accordance with Specification B36/ B36M yellow brass. ¼ by 1¾ in. (3.2 by 44.5 mm) long.
6.8 Unless otherwise specified in ordering information, gasket to be rubber. ¾6 in. (4.8 mm) thick. 50 ± 5 durometers in accordance with Classification D2000 5BC507 A 14 E034. For manhole cover assemblies for government application. see Annes A2 for type of gasket.
6.9 Welding to conform to the latcst issue of American Bureau of Shipping Rules or other such classification society rules as may be applicable.
6.10 Details of klted manholes are shown in Fig. I.
7. Dimensions
7. 1 Dimensions of manhole shall be as indicated in Table 1.
7.2 For plating up to and including ¼-in. (6.4-mm) thickness, use cover plate of ‘/4-In. (6.4-mm) thickness. Placing over ‘.‘-in. (6.4-mm) up to and including ¾-in. (9.5-mm) thickness: usc cover plate of ¾-in. (9.5-mm) thickness. Plating over ¼-in. (9.5-mm) thickness, use cover plate of ½-in. (12.7-mm) thickness.
8. Finish
8.1 Items produced under this specification shall be free of splinters, sharp edges, burrs, projections, and weld spalters.
8.2 Unless otherwise specified in ordering data, items shall. after fabrication, have a Class A finish.
9. Sampling
9.1 For orders for one or Iwo manhole cover assemblies, each manhole assembly shall be inspected.
9.2 For orders for three to ten manhole cover assemblies. two manhole cover assemblies shall be selected at random. Ii any one of them fails to meet requirements. then all manhole cover assemblies in the order shall be inspected.
9.3 For orders for more than ten manhole cover assemblies. they shall be separated into groups of ten (or fraction thereof) for sampling purposes.
10. Inspection and Testing
10.1 Responsibility—Unless otherwise specified in the order, the manufacturer is responsible for the performance of all inspection and testing specified herein. The manLifacturer may use his own facilities or any comnien’ial facility acceptable to the purchaser. The purchaser reserves the right to perform any of the inspections and tests set forth where such are deemed necessary to assure that supplies conform to prescribed requirements. Nonconforming manhole cover assemblies shall not be offered for delivery.
10.2 Inspection—The dimensions of the manhole cover assembly and its components shall be checked to ensure that they are within specified tolerances.
10.3 Test Methods—Each manhole cover assembly shall be designed to the pressure listed in Table I and tested to a pressure equal to 1.5 times the design pressure. The test pressure shall be held for a minimum of 5 mm.