bar 178 - An Overview
bar 178 - An Overview
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(ii) Taper threads for being of duration not below as specified for American Common taper pipe threads.
Marking on Every single container by stamping plainly and forever are only licensed where the steel is not less than 0.09 inch thick, or over a metal nameplate completely secured on the container by suggests besides comfortable solder, or by usually means that might not decrease the wall thickness.
means the individual whose name and address or image appears as Element of the specification markings essential by this element or, for the packaging marked With all the image of an approval agency, the individual on whose behalf the acceptance company certifies the packaging.
(3) Each individual specimen for the tension and Charpy effects tests need to be taken within the aspect wall of the cylinder or from a ring that has been heat taken care of Along with the completed cylinders of which the specimens should be agent. The axis on the specimens need to be parallel to the axis of your cylinder.
(ii) In utilizing the “extension below load” method, the total pressure (or “extension underneath load”) akin to the tension at which the 0.two per cent lasting pressure takes place could be decided with enough accuracy by calculating the elastic extension from the gauge size beneath acceptable load and adding thereto 0.
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(iv) Permanent volumetric enlargement might not here exceed 10 p.c of the overall volumetric growth at exam force.
(d) No man or woman could mark or usually certify a packaging or container as Conference the necessities of a producing Particular permit Except if that particular person would be the holder of or a party to that Particular allow, an agent on the holder or get together for the goal of marking or certification, or possibly a third party tester.
(two) Cylindrical style cylinder layouts needs to be of circumferentially welded or brazed development; longitudinally brazed or silver-soldered seams are permitted.
(iii) For the objective of strain measurement, the First pressure should be set while the specimen is beneath a pressure of 12,000 psi, and the pressure indicator reading through must be established on the calculated corresponding strain.
(1) A stress, close to the same as although not below the provider stress, needs to be placed on one side in the completed base around a region of at the least 1⁄sixteen of the full location of the bottom although not a lot less than 3⁄four inch in diameter, such as the closure, for at least just one moment, all through which period another facet of The underside exposed to strain have to be protected with drinking water and intently examined for indications of leakage.
(1) Every single rigidity specimen will need to have a gauge length of two inches by using a width not exceeding one and just one-half inches. Aside from the grip finishes, the specimen will not be flattened. The grip finishes could be flattened to in 1 inch of each conclusion in the lessened segment.