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JC/T 502-1993 English PDF (JCT502-1993)

JC/T 502-1993 English PDF (JCT502-1993)

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JC/T 502-1993: Functional ceramic toilet flushing test methods

This standard specifies the materials, reagents, test devices, test procedures, test reports for the flushing test methods of ceramic toilets. This standard applies to the inspection of the flushing function of ceramic toilets.
JC 502-93
JC
BUILDING MATERIAL INDUSTRY STANDARD
OF THE PEOPLE REPUBLIC OF CHINA
Functional ceramic toilet flushing test methods
ISSUED ON: AUGUST 03, 1993
IMPLEMENTED ON: FEBRUARY 01, 1994
Issued by: Building Material Industry Bureau
Table of Contents
1 Subject content and scope of application ... 3
2 Reference standards ... 3
3 Method summary ... 3
4 Materials, reagents and test equipment ... 3
5 Specimen ... 4
6 Test procedures ... 4
7 Test report ... 5
Additional information ... 6
Functional ceramic toilet flushing test methods
1 Subject content and scope of application
This standard specifies the materials, reagents, test devices, test procedures, test reports for the flushing test methods of ceramic toilets.
This standard applies to the inspection of the flushing function of ceramic toilets. 2 Reference standards
GB 5346 Plastic fittings for single trap siphonic of sanitary water tank GB 6952 Sanitary wares
GB 6953 Specifications and connecting dimensions of sanitary wares
GB 8219 Fitting of water closet
3 Method summary
Under the condition of limited flushing water volume, a test of discharging artificial dirt is carried out. Observe and test the sewage discharge function, washing surface flushing function, water seal, waste water replacement
function of the toilet.
4 Materials, reagents and test equipment
4.1 Table tennis (??38 ?? 0.1 mm, the mass after water injection is 26 ?? 0.4 g). 4.2 Sponge strips (??30 ~ ??35 mm, length 70 mm, the mass after saturation in water is about 70 g).
4.3 Methylene blue solution (1 g/L).
4.4 Red (or blue) ink.
4.5 The test device meets the following requirements:
4.5.1 In accordance with the provisions of GB 5346 and GB 8219, install water tank accessories; test the water supply system.
The inner diameter of the flushing pipe of the low water tank is generally 45 mm; the installation height (from the center of the toilet's water inlet to the bottom of the water tank) is 200 mm.
The inner diameter of the flushing pipe of the high water tank is 28 ?? 0.2 mm; installation height is 1800 ?? 20 mm; the drain outlet of the toilet is not connected to the pipe.
4.5.2 Control the flushing water consumption, in accordance with the provisions of GB 6952.
5 Specimen
Select a toilet, whose appearance quality meets the requirements of GB 6952, as the test sample. Before each test is carried out, clean the flushing surface of the toilet.
6 Test procedures
6.1 Test procedure for toilet
6.1.1 Sewage discharge function
6.1.1.1 The toilet is placed steadily and horizontally. It is connected to the test device, which is specified in 4.5, to be in use state. Put 6 table tennis, that meet the requirements of clause 4.1, into the toilet at a time. Flush immediately. 6.1.1.2 Observe and record the number of balls rushing out of the toilet. 6.1.2 Washing function
6.1.2.1 Wipe the flushing surface dry. Use a soft pen, to draw a circle of ink line, along the cleaned surface, which is 25 mm below the toilet seat. Flush
immediately.
6.1.2.2 Observe and measure the total length of the ink line, which is remained on the flushing surface. Record the result.
6.1.3 Measurement of water seal depth
As shown in Figure 1, use a steel tape, to measure the depth, h, from the bottom of the toilet flap to the water surface.

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