ASME A112.18.1:2012 pdf free download

ASME A112.18.1:2012 pdf free download

ASME A112.18.1:2012 pdf free download.Plumbing supply fittings.
If widely scattered surface defects are observed after testing (as occasionally occurs), such defects shall not significantly deface or adversely affect the function of the coated part. Test procedure
The coated parts shall comply with the performance requirements of Clause 5.2.2,1 after being subjected
to one of the following corrosion tests:
(a) ASTM G85 (Annex Al — acetic acid): the test duration shall be 8 h for service conditions 1 (SC-1)and 24 h for service conditions 2 (SC-2).
(b) ASTM Bi 1 7 (neutral salt): this test shall be applicable to SC-2 devices and shall have a duration of 24 h.
(c) ASTM B368 (CASS): this test shall be applicable to SC-2 devices and shall have a duration of 4 h.
(d) ASTM B380 (Corrodkote): this test shall be applicable to SC-2 devices and shall have a duration of 4 h.
Note: if more rhan one test method is specified, the manufacturer may specify wliith method 1, to be used. SC- I and SC-2 are defined In Clause 3. V.
An SC-i specimen that passes the SC-2 test shall be considered to have met the requirements of
5.2.3 Adhesion Performance requirements
The coating and the separate layers of multi-layer coatings shall be sufficiently adherent to each other and
to the base material to comply with one of the adhesion tests specified in Clause,, or, as applicable. [lectrodeposlted and PVI) coatings on metals
Specimens shall be tested in accordance and comply with one of the following adhesion tests specified in
ASTM B571:
(a) Paragraph 4: burnish test;
(b) Paragraph 7: file test;
(c) Paragraph 8: grind-saw test; or
(d) Paragraph 9: heat-quench test.
52.3.3 [lectrodeposited and PVI) coatings on plastics
52.331. Performance requirements
Fittings or component parts of fittings that have electrodeposited coatings on plastic bases, including those with additional organic coatings, shall comply with the following requirements when tested in accordance with Clause 523.32:
(a) No surface defects shall be present on significant surfaces.
(b) Non-significant surfaces, gates, and parting lines may have minor cracks not longer than 6 mm (0.25 in), provided that there is no loss of adhesion between the base material and the coating.
(C) Blisters not exceeding 6 mm2 (0.01 in2) in area shall be acceptable within 6 mm (0.25 in) of an injection point. If an injection point is within 6 mm (0.25 in) of a significant surface, Item (a) shall apply.
(d) Warpage shall be considered acceptabfe only where it does not affect the performance of the fitting or component.
The adhesion of organic coatings shall be evaluated following the procedure specified in Clause and shall not be evaluated during the test specified in Clause