Cylinders should be manufactured working with products and procedures adequate in order that Each individual cylinder produced conforms to the necessities of the subpart. No defect is permitted that is likely to weaken the concluded container appreciably.
(d) No person may well mark or or else certify a packaging or container as Conference the requirements of a manufacturing Distinctive allow Except if that particular person is the holder of or a party to that Particular permit, an agent from the holder or get together for the objective of marking or certification, or a 3rd party tester.
(two) Each and every cylinder must meet the next more need which assumes a cylinder horizontally supported at its two finishes and uniformly loaded about its total duration.
Reheat remedy is approved for a rejected cylinder in accordance with this particular paragraph (m). After reheat, a cylinder have to move all prescribed assessments During this section to generally be acceptable. Restore of brazed seams by brazing and welded seams by welding is taken into account authorized.
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(iii) When measurement of the cylinder would not permit securing straight specimens, the specimens could possibly be taken in almost any place or course and will be straightened or flattened chilly, by force only, not by blows.
Results with the flattening check, Bodily tests, burst take a look at, and biking exam need to conform to the next:
(one) Just about every cylinder needs to be uniformly and correctly warmth taken care of before exam because of the relevant technique referenced in desk 1 of appendix A to this section. Heat procedure need to be attained after all forming and welding operations, apart from that when brazed joints are utilized, heat treatment method must stick to any forming and welding operations, but may very well be carried out in advance of, throughout or after the brazing operations (see paragraph (n) of the portion for weld repairs).
Cylinders need to be created making use of tools and procedures satisfactory to make certain Every cylinder produced conforms to the requirements of the subpart. No defect is permitted that is probably going to weaken the click here finished cylinder appreciably.
(iv) On the plate hooked up to the very best with the cylinder or permanent aspect thereof; sufficient space should be left to the plate to deliver for stamping at the very least six retest dates; the plate have to be at the least 1⁄16 inch thick and needs to be attached by welding, or by brazing at a temperature of no less than 1100 °File., all through all edges in the plate;
(three) The Charpy V-notch influence Attributes for your 3 influence specimens which needs to be tested at 0 °F will not be less than the values proven as follows:
Heads fashioned by drawing or urgent needs to be uniformly and correctly warmth addressed ahead of exams. Cylinders with integral fashioned heads or bases have to be subjected to your normalizing operation.
Content should be identified by any ideal system. Metal stamping of heat identifications may not be created in any spot which will sooner or later turn out to be the aspect wall of your cylinder. Depth of stamping may not encroach upon the bare minimum prescribed wall thickness with the cylinder.
The restricting chemical composition of metal licensed by this specification must be as proven in table I of appendix A to this portion.