ASME A112.19.1 pdf download

ASME A112.19.1 pdf download.Enamelled cast iron and enamelled steel plumbing fixtures.
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The concept of harmonization for plumbing fixtures arose in the early 1 990s, when a free trade agreement between Canada. Mexico, and the United States began to be discussed. Standards development organizations (SDOs) were at the forefront of these discussions and an opportunity soon arose for those SDOs involved in developing requirements for plumbing products to establish a process for harmonization. However, the effort to develop a trinational Standard stalled until 2001, when ASME and CSA decided to develop a binational Standard for plumbing fittings.
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Harmonization activities for plumbing fixtures standards were undertaken in 2004 by a )oint Harmonization Task Group (JHTG) on Plumbing Fixtures, in which the ASME and CSA plumbing fixtures committees were equally represented. The responsibility for procedural matters and final approval of technical content was assumed by technical committees at higher levels within each SDO
1 Scope
This Standard covers enamelled cast iron and enamelled steel plumbing fixtures and specifies requirements for materials, construction, performance, testing, and markings.
1.2
This Standard covers the following plumbing fixtures:
(a) bathtubs;
(b) drinking fountains and water coolers;
(c) lavatories;
(d) shower bases; and
(e) sinks:
(i) kitchen and bar sinks;
(ii) laundry sinks;
(iii) service sinks; and
(iv) utility sinks.
1.3
In this Standard. ushallw is used to express a requirement i.e., a provision that the user is obliged to satisfy in order to comply with the standard;
4.6.3
Mounting surfaces for supply fittings that rely on an air gap for backflow protection shall be not more than 13 mm (0.5 in) below the flood level nm.
Mole: Care should be taken to ensw thot the mjomum ow gap specified in ASM( Al 12,18. 1/CAN/CSA.B1 25.1 o’ln the app! vcoble plumbing code is not conipsomised when sqspfr fittings are installed on f&stures with mounting surfaces below the flood level urn.
4.7 Additional requirements for bathtubs and shower bases
4.7.1 Minimum dimensions for bathtubs
The minimum dimensions for bathtubs shall be as shown in Figure 7.
4.7.2 Slope to the waste outlet
Bathtubs and shower bases shall have a maximum slope of 4% to the waste outlet.
Mote: There should be a mirwnum slope of 1% to the waste outlet
4.7.3 Flanges
4.7.3.1
Bathtubs intended for installation against a wall shall incorporate a continuously raised flange or bead extending at least 8 mm (0.3 in) above the rim.
Shower bases intended for installation against a wall shall incorporate a continuously raised flange or bead extending at least 25 mm (1.0 in) above the exposed sides and back.
4.7.3.2
The raised flange shall be
(a) integral with the bathtub or shower base;
(b) added to an island tub or shower base in the factory; or
(C) field installed using a flange kit that complies with Clause 5.4. Fixtures using field-installed flanges shall be marled in accordance with Clause 6.3 and shall include all necessaiy parts and fasteners.
4.7.4 Slip-resistant surfaces
The slip-resistant surfaces of bathtubs and shower bases shall comply with ASTM F 462 and have the dimensions shown in Figure 8.
4.8 Additional requirements for drinking fountains
4.8.1
Drinking fountains shall
(a) include a supply fitting, which shall be at least 25 mm (1.0 in) above the flood level rim; and
(b) comply with the dimensions shown in Figure 9.
Note: Dnnking fountain wpply fittings ore also known as dnnking fount cwn bubblers.
4.8.2
Factory.supplied drinking fountain supply fittings shall comply with ASME Al 12.18.1 /CAN/CSAB1 25.1. including the toxicity requirements.
4.9 Accessible design fixtures
Fixtures designed to be accessible shall comply with the dimensional requirements specified in
CANICSAB6S1 or ICC/ANSI All 71.
5 Test methods
5.1 Acid resistance test
5.1.1 Procedure
The acid resistance lest shall be conduted d klivv
(a) Prepare a solution made of 1 part citnc acid crystals to 10 parts water, by weight.
(b) Store the solution for at least 3 h at a temperature of 27 ± 6 C (80 ± 1 O’F).
(c) Apply the solution to clean areas of the enamel, in pools consisting of several drops.
(d) Cover the solution with a watch glass and hold it in place for 15 ± 2 mm.
(e) At the end of the 15 ± 2 mm period, wash and dry the enamel.
5.1.2 Performance
The acid resistance of the enamel shall comply with the Class A requirements of ASTM C 282,
5.2 Surface examination
5.2.1 Procedure
Visible surfaces shall be examined for defects by the unaided eye at a distance of approximately 610 mm (2 ft), using a light source of partially diffused daylight supplemented, if necessary, with diffused artificial light, giving on the surface between 1076.