(one) Every cylinder have to be heated and held at the appropriate temperature for at least just one hour for every inch of thickness according to the utmost thickness with the cylinder and afterwards quenched in an appropriate liquid medium possessing a cooling fee not in surplus of eighty per cent of drinking water.
(B) With facts specifying the type(s) and Proportions of the closures, including gaskets and some other factors necessary to make sure that the packaging is able to efficiently passing the relevant overall performance assessments. This information have to consist of any treatments to become followed, which include closure Guidelines for interior packagings and receptacles, to effectively assemble and close the packaging for the objective of blocking leakage in transportation.
Tension-retaining resources should be discovered by any appropriate system that does not compromise the integrity on the cylinder. Plates and billets for hotdrawn cylinders has to be marked with the heat quantity.
Reheat therapy is authorized for any rejected cylinder in accordance with this particular paragraph (m). Right after reheat, a cylinder should move all prescribed tests During this section to become satisfactory. Mend of brazed seams by brazing and welded seams by welding is taken into account approved.
Markings on each cylinder must be by stamping plainly and permanently on shoulder, leading head, neck or valve safety collar and that is forever connected on the cylinders and forming an integral element thereof, supplied that cylinders not under 0.090 inch thick might be stamped over the aspect wall adjacent to leading head.
(two) A plugged cylinder is 1 where a permanent closure in the bottom of a completed cylinder has long been effected by a plug.
(iii) For the purpose of strain measurement, the Preliminary pressure need to be established while the specimen is below a strain of twelve,000 psig along with the strain indicator looking at has to be established at the calculated corresponding strain.
(2) The dimensions of any centered opening inside a head may not exceed one 50 percent the outside diameter on the cylinder.
(3) Over a plate connected to the highest in the cylinder or long term section thereof: sufficient House should be still left to the plate to deliver for stamping a minimum of six retest dates: the plate has to be at the very least 1⁄sixteen inch thick and have to be attached by welding or by brazing in a temperature of no less than 1100 °F, throughout all edges of your plate.
(i) The remaining cylinders in Each individual whole lot has to be tension examined by the evidence pressure, h2o-jacket or direct enlargement examination method as prescribed in CGA C-one. The minimum examination tension have to be managed for the precise timeframe as well as the tests gear need to be calibrated as prescribed in CGA C-one.
(b) A UN standard here packaging for which the UN regular is set forth Within this portion may be marked Together with the United Nations image and also other specification markings provided that it totally conforms to the necessities of the part.
(one) The metal used in the development of your cylinder has to be as specified in desk one of appendix A to this component. The cylinder producer ought to maintain a file of deliberately included alloying factors.
(iii) When dimensions of cylinder won't permit securing straight specimens, the specimens may be taken in almost any area or route and may be straightened or flattened cold, by pressure only, not by blows.
(six) Other markings are authorized supplied These are manufactured in very low anxiety places aside from the side wall and therefore are not of the sizing and depth that should develop destructive strain concentrations. These marks may well not conflict with any DOT demanded markings.