33 CFR 159.117 - Chemical resistance test.
(a) In each case where the recognized facility doubts the ability of a material to withstand exposure to the substances listed in paragraphs (b) and (c) of this section a sample of the material must be tested.
(b) A sample referred to in paragraph (a) of this section must be partially submerged in each of the following substances for 100 hours at an ambient temperature of 22 °C.
(3) Any chemical compound in solid, liquid or gaseous form, used, emitted or produced in the operation of the device.
(c) A sample of the material must be doused 20 times, with a 1 hour drying period between dousings, in each of the following substances:
Title 33 published on 2013-07-01
no entries appear in the Federal Register after this date.