ASME A112.18.9-2011 pdf download
ASME A112.18.9-2011 pdf download.Protectors/lnsulators for Exposed Wasteand Supplies on Accessible Fixtures.
1.2 UnIts of Measurements
Values are generally stated in U.S. Customary units and International System of Units (SI) U.S. Customar4 units shall be con dersd as the standard.
2 DEFINITIONS
access: a plumbing future that complies with the requirements of ICC/ANSI A117.I, Standard for Accessible and Usable Buildings and Facilities for Persons With Physical Disabilities.
protedorsfinsuialors: individual covers over waste and supply pipes that isolate them to prevent injury from contact with hot, cold, or sharp surfaces,
suppliis: the exposed water pipes to a lixture fitting consAsting of stop valves arid riser tubing under a sink or lavatory.
ooids: any unproected area of exposed waste and supplies that could contact the user.
wrsk: standard drains with tailpicces and P-traps. standafti drains with tailpiecc-s and bottle traps, or offset drains using 90-deg elbows, horizontal legs, vertical tail- pieces. and P-traps.
3 REFERENCES
the tollowing is a list of publications referenced in this Standard
4 DESIGN REQUIREMENTS
4.1 General Requirements
Trap protectors/insulators shall be designed to fit the specified size of the trap. A single size trap protector/ insulator shall be permitted to accommodate multiple sizes of traps: 11/4 in., as well as 11/2 in. or 2 in. nominal. Field-applied protectors / insulators shall have enough fasteners to securely fasten the protectors/insulators over the drain pipe assemblies, water supply risers, and stops. A fastener consisting of a single, continuous seam shall also be acceptable. Fasteners shall not present sharp or abrasive external surfaces. Devices covered by this Standard shall be removable, reusable, and after reassembly meet the requirements of this Standard.
4.2 Heat Transfer
Protectors/insulators for exposed waste and supplies shall be engineered to comply with the heat transfer requirements contained in para. 5.1.
4.3 Workmanship
Exterior surfaces of protectors/insulators for exposed waste and supplies exterior surface shall be smooth and water resistant, having no sharp or abrasive features or protrusions.
5 PERFORMANCE REQUIREMENTS AND TEST METHODS
5.1 Heat Transfer Test
Tests shall be conducted at a room temperature of 73.4°F ± 3.6°F (23°C ± 2°C). One sample of each protector/insulator shall be installed on the recommended supply or waste assembly in accordance with the manufacturers’ instructions. Maintain the water flowing through the supplies or waste at a water temperature at 140°F ± 2°F (60°C ± 1.1°C) for a period of 5 hr. A thermocouple attached to the outside wall of the protector/insulator shall be used to record the temperature every 15 mm over the length of the test.
NOTES:
(1) If the manufacturer’s specification covers more than one size of fitting for the protector/insulators, the larger size of the fitting shall be used for testing.
(2) The temperature-measuring devices or thermocouples shall be placed on the hottest spots of the outside wall of the protector/ insulators. lException: Thermocouples shall be placed a minimum of 2 in. (50.8 mm) from the wall for supply stops.]
5.1.1 Performance Requirements. Surface temperature of the protector/insulator shall not rise above 95°F (35°C).
5.2 Surface Deflection and Load Test
Using a in. (12.7 mm) diameter metal rod, apply a 10 lb (44.5 N) force at a right angle against the outside wall of P-trap, supply stops, or riser protector for 10 sec.
5.2.1 Performance Requirements. The surface shall not crack or show signs of voids. After the load is removed for 5 mm, the outside surface shall have no indentation where the load was applied.
5.3 Water Resistance Test
Four 4 in. X 4 in. (101.6 mm X 101.6 mm) specimens are required for this test. One specimen shall be held as a controlled specimen.