unless otherwise indicated in adr, pressure receptacles conforming to:
(a) the applicable requirements of chapter 6.2; or
(b) the national or international standards on the design, construction, testing, manufacturing and inspection, as applied by the country in which the pressure receptacles are manufactured, provided that the provisions of 4.1.3.6 are met, and that, for metallic cylinders, tubes, pressure drums, bundles of cylinders and salvage pressure receptacles, the construction is such that the minimum burst ratio (burst pressure divided by test pressure) is:
(i) 1.50 for refillable pressure receptacles;
(ii) 2.00 for non-refillable pressure receptacles,
are authorized for the carriage of any liquid or solid substance other than explosives, thermally unstable substances, organic peroxides, self-reactive substances, substances where significant pressure may develop by evolution of chemical reaction and radioactive material (unless permitted in 4.1.9).
this sub-section is not applicable to the substances mentioned in 4.1.4.1, packing instruction p200, table 3.