ASME A112.19.1:2013 pdf download

ASME A112.19.1:2013 pdf download Enamelled cast iron and enamelled steel plumbing fixtures
Flood level- the level at which water will overflow a fixture.
lnspection window — a circular opening 76 mm (3.0 in) in diameter cut into a sheet of flexible materialand used to count the number of defects in the opening (see Table 1).
Lavatory — a washbowl or basin.
Slab type lavatory — a lavatory that has the mounting surface for a faucet on top of a slab anddoes not have an elevated back.
Ledge back — a flat elevated surface at the back of a lavatory, sink, or laundry sink, not more than51 mm (2.0 in) higher than the rim and extending the full length of the fixture, on which the supplyfitting can be mounted and small articles can be placed, or a similar construction with a centre panelsuitable for mounting a supply fitting.
Porcelain enamel— a vitreous or glossy inorganic coating that is bonded to the metal by fusion at hightemperature.
Rim – the unobstructed open edge of a fixture.
Satin finish — a very smooth surface with low or dull reflective properties.
Sheet steel — steel that can be satisfactorily porcelain enamelled, including the following:
(a) special-purpose enamelling iron or steel of low metalloid and copper content that is speciallymanufactured and processed for the production of porcelain-enamelled fixtures;
(b)special steels designed for porcelain-enamel application; and
(c)cold-rolled steel.
Shelf back — a flat elevated surface at the back of a lavatory, sink, or laundry sink more than 51 mm(2.0 in) higher than the rim and extending the full length of the fixture, on the top or front of which thesupply fitting can be mounted and small articles can be placed, or a similar construction with a centrepanel formed into the shelf suitable for mounting a supply fitting on either a horizontal or inclined surface.Spill level — the level at which water will flow out of one bowl into another bowl of the same fixture.Visible surface — a surface of a fixture that is readily visible to an observer in a normal standing positionafter the fixture is installed.
Visible after installation — a surface that remains visible (not necessarily from a normal standingposition) after the fixture is installed.
4 General requirements4.1 General
4.1.1 Materials
All materials shall be free from deficiencies that affect the fixture’s intended purpose.
4.1.2 Surface finish
Fixtures shall have a surface free from defects to the extent specified in Table 1 when evaluated inaccordance with Clause 5.2.
4.1.3 Quality of work
Fixtures shall not have any exposed sharp or jagged edges, burrs, cracks, or other defects that might affecttheir use and serviceability (see Clause 5.2).
4.1.4 wall brackets
wall brackets shall be used when slab-type lavatories are supported by cast iron legs.
4.2 Cast iron thickness
Cast iron shall be at least 3 mm (0.13 in) thick when measured at least 25 mm (1.0 in) from the edge ofthe fixture.
4.3Tolerances
4.3.1 General
Unless otherwise specified in this Standard, the tolerance on dimensions of 200 mm (8 in) and greatershall be 士 3%.The tolerance on dimensions less than 200 mm(8 in) shall be 主5%.
ln this Standard, dimensions specified as “minimum”or “maximum” shall not be reduced below thespecified minimum or increased above the specified maximum by application of a tolerance. If a
dimensional range is specified and the word “minimum” or “maximum” does not appear, the upperand lower limits shall not be considered critical and the appropriate tolerance shall apply.
4.3.2 Apron bathtubs
The tolerance on the length of apron bathtubs shall be ± 13 mm (± 0.5 in).
4.4 Enamel
4.4.1 General
Enamelled surfaces shall be enamelled using acid-resisting enamel thoroughly fused to the cast iron orsteel.The enamel shall be of uniform colour and free from defects that affect the appearance or can affectthe serviceability of the fixture.
4.4.2 Specular gloss
Enamelled surfaces visible after installation shall be glossy to the extent that they shall have a 45(0.79 rad) specular gloss of not less than 45 when tested in accordance with ASTM C346.
4.4.3 Reflectance
lf the enamel is white, its reflectance shall be not less than 72% when measured in accordance withASTME1347.
4.4.4 Enamel thickness
The thickness of the enamel, measured on a flat surface at least 25 mm (1.0 in) from any edge of thefixture, shall be at least 0.64 mm (0.025 in) for cast iron and 0.1 3 mm (o.005 in) for steel.
4.4.5 Surface treatments
Before they are enamelled, surfaces shall be treated with ground coat. After enamelling, any surfacesubject to rework that exposes base metal shall be factory treated with rust inhibitor.All other steelsurfaces shall be treated with at least one coat of filler, ground coat, or paint.
4.5 Waste fitting openings, drainage, and overflows4.5.1 waste fitting openings and drainage
4.5.1.1
Fixtures shall
(a) have a waste fitting opening (outlet), the centre of which shall be located at the lowest point of the
fixture; and