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GB 6952-2015: PDF in English GB 6952-2015
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 91.140.70
Q 31
Replacing GB 6952-2005
Sanitary wares
卫生陶瓷
ISSUED ON: SEPTEMBER 11, 2015
IMPLEMENTED ON: OCTOBER 01, 2016
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of PRC;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 6
4 Product classification and marking ... 8
5 General technical requirements ... 10
6 Technical requirements for pan and urinal ... 14
7 Technical requirements for lavatory, bidet, sink ... 21
8 Test method ... 21
9 Inspection rules ... 39
10 Signs and markings ... 42
11 Installation and operation manual ... 43
12 Packaging, transportation, storage ... 44
Appendix A (Informative) Marking of sanitary ceramic product ... 45
Appendix B (Normative) Schematic diagram of size requirements for sanitary
ceramic product ... 49
Appendix C (Informative) Schematic diagram of measurement method for
deformation of sanitary ceramic products ... 57
Appendix D (Normative) Schematic diagram of load-bearing capacity test ... 68
Appendix E (Normative) Function test device of pan and urinal ... 71
Appendix F (Normative) Schematic diagram of artificial test body for the
discharge test of squatting pan ... 75
Appendix G (Informative) Functional requirements and test methods for water-
free urinals ... 77
Sanitary wares
1 Scope
This standard specifies the terms and definitions, product classification and
marking, general technical requirements, technical requirements for Pan and
urinal, technical requirements for lavatory, bidet, sink, test methods, inspection
rules, signs and markings, instruction manual for installation and use,
packaging, transportation, storage of sanitary ware.
This standard is applicable to the production, sales, installation, use of various
sanitary ware products, which are installed on water supply and drainage
pipelines, after being matched with various corresponding accessories, in civil
or public buildings.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) is applicable to this standard.
GB/T 2828.1 Sampling procedures for inspection by attributes - Part 1:
Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot
inspection
GB/T 3768 Acoustics - Determination of sound power levels of noise sources
using sound pressure - Survey method using an enveloping measurement
surface over a reflecting surface
GB/T 9195 Classification and terms of building and sanitary ceramics
GB 20810 Bathroom tissue (including bathroom tissue base paper)
GB/T 23131 Electronical pedestal pans
GB/T 23448 Flexible hose for sanitary tapware
GB 26730-2011 Sanitary ware - Gravity water flushing devices and supports
GB/T 26750 Sanitary ware - Pressure assistant water flushing devices
JC/T 694 Packaging for sanitary wares
d) The mass of the lavatory should not exceed 20 kg;
e) The mass of wall-hang urinals should not exceed 15 kg;
f) Special engineering products can be in accordance with the requirements
of contract.
5.7 Load bearing capacity
After the load bearing capacity test, there shall be neither deformation nor
visible structural damage. The loads borne by various products are as follows:
a) The pedestal pan and bidet shall be able to withstand a load of 3.0 kN;
b) Wall-hang lavatory, sinks, hand-rinse basins shall be able to withstand a
load of 1.1 kN;
c) Wall-hang urinals shall be able to withstand a load of 0.22 kN;
d) The shower tray shall bear a load of 1.47 kN.
5.8 Technical requirements for matching
5.8.1 Matching requirements of pan and urinal
5.8.1.1 Flushing device
The pan and urinal products shall be equipped with flushing devices, that meet
the water consumption requirements; it shall ensure their overall tightness.
5.8.1.2 Gravity flushing device
The gravity flushing device, which is matched to the pan and urinal products,
shall meet the requirements of GB 26730.
5.8.1.3 Pressurized flushing device
The pressurized flushing device, which is matched to the pan and urinal
products, shall meet the requirements of GB/T 26750.
5.8.1.4 Anti-siphon function
The matching flushing device shall have an anti-siphon function.
5.8.1.5 Safe water level
The safe water level of the gravity flushing cistern, which is used for pan and
urinal, shall meet the requirements of 5.4.1 in GB 26730-2011. The safe water
level of the hidden cistern shall meet the requirements of 5.4.10.2 in GB 26730-
6.1.2.1 The size of sewage draining exits for pedestal pan
The outer diameter of the sewage draining exit of the bottom-drain pedestal pan
shall be not more than 100 mm. The outer diameter of the sewage draining exit
of the back-drain pedestal pan shall be 102 mm. The installation depth of the
siphon pedestal pan shall be 13 mm ~ 19 mm. There shall be an installation
space, which has a diameter of not less than 185 mm, around the sewage
draining exit of the bottom-drain siphon pedestal pan. There shall be an
installation space, which has a diameter of not less than 150 mm, around the
sewage draining exit of other types of pedestal pans. The length of the sewage
pipe of the flush-down back-drain pedestal pan shall not be less than 40 mm.
The schematic diagram of the size of pedestal pan's sewage draining exit shall
conform to Figure B.1.
6.1.2.2 Outer diameter of squatting pan's sewage draining exit
The outer diameter of the sewage draining exit of the squatting pan shall not be
greater than 107 mm.
6.1.3 Bolt hole for wall-hang pedestal pan
The distance between the bolt holes, for the installation of wall-hang pedestal
pan, shall meet the requirements of Figure B.2.
The diameter of all mounting bolt holes of wall-hang pedestal pans shall be 20
mm ~ 27 mm, OR lengthened bolt holes.
6.1.4 Water seal
6.1.4.1 Water seal depth
The depth of the water seal of all pedestal pans, which have integral traps, shall
not be less than 50 mm.
6.1.4.2 Surface size of water seal of pedestal pan
The surface size of the water seal of the pedestal pan, which is installed on the
horizontal surface, shall not be less than 100 mm × 85 mm. The schematic
diagram of surface size of the pedestal pan's water seal shall conform to Figure
B.3.
6.1.5 Minimum drift diameter of trap
6.1.5.1 The pedestal pan's trap channel shall be able to let a solid ball, which
has a diameter of 41 mm, pass.
6.1.5.2 The waterway of the squatting pan, which has an integral trap, shall be
able to let a solid ball, which has a diameter of 41 mm, pass.
6.1.5.3 The water channels of jet siphon urinals and flush-down urinals, which
have integral water traps, shall be able to let a solid ball, which has a diameter
of 23 mm, pass; OR the cross-sectional area of the water channel shall be more
than 4.2 cm2. The water channel of other types of urinals shall be able to let a
solid ball, which has a diameter of 19 mm, pass; OR the cross-sectional area
of the water channel shall be more than 2.8 cm2.
6.1.6 Seat of pedestal pan
6.1.6.1 Seat size of pedestal pan
The size of the pedestal pan's seat shall comply with the provisions of Figure
B.4. Where there is special requirement, it shall be in accordance with the
requirements of the contract.
6.1.6.2 Mounting hole of pedestal pan's cover
6.1.6.2.1 The diameter of the mounting hole shall be 15 mm.
6.1.6.2.2 The center distance shall be 140 mm or 155 mm.
6.1.6.2.3 The deviation of the hole from the center line shall meet the
requirements of Table 5.
6.1.6.2.4 The roundness of the hole shall meet the requirements of Table 5.
6.1.6.3 The distance from the mounting holes of the pedestal pan's cover
to the edge
The distance from the mounting holes of the pedestal pan's cover to the edge:
it shall be 419 mm for the ordinary adult type; 470 mm for the adult lengthened
type; 380 mm for the toddler type.
6.1.6.4 Seat width of pedestal pan
Seat width of pedestal pan: It shall be 356 mm for the adult type; 280 mm for
toddler type.
6.1.6.5 The seat height above the ground
The height of the seat from the ground: It shall be not less than 370 mm for
adult type; not less than 245 mm for toddler type; not less than 420 mm for the
disabled/elderly dedicated type.
6.1.7 Water inlet of pedestal pan
Carry out the particle discharge test, in accordance with the provisions of 8.8.6.
Perform 3 consecutive tests. The average number of visible polyethylene
particles, which are remaining in the pedestal pan's trap, is not more than 125
for 3 tests; the average number of visible nylon balls for 3 tests is not more than
5.
6.2.2.3.3 Mixed medium discharge function
Water-saving pedestal pans shall be tested for the mixed medium discharge
function, according to 8.8.7. The mixed medium (sponge strips and tissue balls),
which are flushed out of the pedestal pan for the first test, shall be not less than
22. The number medium, which is flushed out for the first test of the toddler
pedestal pan, shall be not less than 11. If there is residual medium, all shall be
flushed out during the second test.
6.2.2.4 Delivery characteristics of drainage pipeline
Carry out the pipeline delivery characteristic test, according to 8.8.8. The
average delivery distance of the ball shall not be less than 12 m.
6.2.2.5 Water seal's restoration function
Carry out the test as specified in 8.8.9. The restoration of the water seal shall
not be less than 50 mm. If it is a siphon pedestal pan, there shall be a siphon
every time.
6.2.2.6 Sewage replacement function
Conduct the sewage replacement test, according to 8.8.10. The dilution rate of
the single flush pedestal pan shall not be less than 100. For the double flush
pedestal pan, only the half-flush sewage replacement test is carried out; the
dilution rate shall not be less than 25.
6.2.2.7 Tissue test
The double-flush pedestal pan shall be subject to a half flush tissue ball test, in
accordance with the provisions of 8.8.11; the test shall be performed 3 times.
There shall be no visible tissue in the pedestal pan's bowl each time.
6.2.3 Urinal function
6.2.3.1 Washable function
Carry out the ink line test, according to 8.8.4.2. The total length of the
accumulated residual ink line, after each flushing, is not more than 25 mm. The
length of each segment of the residual ink line is not more than 13 mm.
6.2.3.2 Sewage replacement function
The urinal, which is equipped with integral trap, shall be tested for sewage
replacement, according to 8.8.10. The dilution rate of the urinal shall not be less
than 100.
6.2.3.3 Restoration oof water seal
The urinal, which has an integral trap, shall be tested, in accordance with 8.8.9.
The water seal restoration shall not be less than 50 mm. The siphon urinal shall
have a siphon every time.
6.2.3.4 Function of water-free urinal
See Appendix G, for functional requirements and test methods of water-free
urinals.
6.2.4 Flushing function of squatting pan
6.2.4.1 Washable function
Carry out the ink line test, as specified in 8.8.4.3. The total length of the
accumulated residual ink line, after each flushing, is not more than 50 mm. The
length of each segment of the residual ink line is not more than 13 mm.
6.2.4.2 Discharge function
Carry out the test, in accordance with the provisions of 8.8.12, for 3 times; at
least 10 test objects are flushed out of the sewage draining exit. The toddler
squatting pan shall have at least 7 test subjects flush out of the sewage draining
exit.
6.2.4.3 Splash-proof
According to 8.8.13, carry out the splash-proof test. No water splashes on the
template. Sputtered water droplets or water mist, which have a diameter of less
than 8 mm, are not counted.
6.2.4.4 Sewage replacement function
Conduct the sewage replacement test, according to 8.8.10. The dilution rate of
the single-flush squatting pan shall not be less than 100. The double-flush
squatting pan is only subject to the half-flush sewage replacement test; the
dilution rate shall not be less than 25.
6.3 Pedestal pan's flushing noise
Measure the pedestal pan's flushing noise, according to 8.10. The cumulative
percentage sound level L50 of flushing noise shall not exceed 55 dB(A). The
cumulative percentage sound level L10 shall not exceed 65 dB(A).
8.3 Dimensions
8.3.1 Inspection workbench
The inspection workbench, which is composed of a horizontal work surface and
a vertical work surface.
8.3.2 Measuring tools
Measuring tools include:
a) Steel ruler, steel tape measure, which has a graduation value of 1 mm;
b) Square ruler, which has an accuracy of 1°;
c) Vernier caliper, which has a graduation value of 0.02 mm;
d) Water seal ruler, which has a graduation value of 1 mm;
e) Feeler gauge, which has a graduation of 0.5 mm;
f) Cone of tape measure and cone;
g) Measuring instruments, which have similar functions.
8.3.3 Dimensions
8.3.3.1 Length, width
Place the tested sample, on the horizontal working surface of the testing bench.
Make the one end to be tested, close to the vertical working surface. Put the
square vertically on the horizontal working surface AND close to the other end
to be tested. Then use a steel ruler, to measure the distance of two measuring
points, between the vertical working surface and the square, along the center
line, which is the length or width of the product.
8.3.3.2 Height
Place the tested end of the sample on a horizontal working surface. Place the
steel ruler close to the other tested end, in the width direction; make it parallel
to the horizontal working surface. Use a square, to measure the distance
between the horizontal working surface and the steel ruler, which is the height
value of the product.
8.3.4 Hole size
8.3.4.1 Hole diameter and roundness
Use a vernier caliper, to measure the diameter of the hole. For special-shaped
holes, the inner and outer circle clamps can be used to support measurement.
Measures 3 points for each hole. Each measurement rotates the measuring
point about 60°, on the basis of the last measurement position. Take the
minimum value, as the diameter of the hole; the maximum radius difference is
the roundness of the hole.
8.3.4.2 Hole center distance and centerline offset
When the sample is placed horizontally, place a cone of tape measure and a
cone, into the two measured holes, respectively. Through the cone ruler, read
out and record the center distance of the holes. Continue to fix the measuring
position of the cone ruler. Use the steel ruler and the square, to determine the
centerline offset.
8.3.4.3 Flatness of mounting hole
Place a flat plate, which has an area larger than the surface of the mounting
hole, in parallel on the surface to be measured. Use a feeler gauge, to measure
the maximum vertical distance between the two surfaces.
8.3.4.4 The distance from the holes and the edge AND the installation
distance of sewage draining exit
Place the sample to be tested, on the detection bench. The edge of the sample
is pressed against the square. Place the cone of tape measure in the hole.
Read out and record the value, between the center of the hole and the square.
8.3.4.5 Outer diameter of sewage draining exit
Use a vernier caliper, to measure the maximum outer diameter of the sewage
draining exit, which is about 5 mm ~ 10 mm away from the sewage draining
exit.
8.3.5 Water seal
8.3.5.1 Water seal's depth
Add water to the pedestal pan's trap, until there is overflow. After stopping the
overflow, use a water seal ruler or ruler or an effective instrument, to measure
the vertical distance, FROM the water seal surface TO the lowest point of the
upper surface of the waterway inlet. Record it.
8.3.5.2 Water seal's surface size
Add water to the pedestal pan's trap, until there is overflow. Use a vernier caliper
or a similar measuring tool, to measure the maximum length and width of the
water seal's surface. Take record.
total load of the tested product meets the requirements of 5.7. Keep it for 10
minutes. Observe and record whether there is any deformation or visible
structural damage.
8.7.3 Load-bearing capacity test of sink
The test board is steel plate, which has a diameter of 76 mm; AND a rubber
pad, which has a thickness of 13 mm, is pasted on one side.
Place the test board flat on the center of the bottom flush surface of the tested
product. Make the rubber surface close to the tested surface. Apply the load
vertically, so that the total load on the tested product is 0.44 kN. Keep it for 10
minutes. Observe and record whether there is any deformation or visible
structural damage.
8.7.4 Load-bearing capacity test of shower tray
The test board is steel plate, which has a diameter of 76 mm; AND a rubber
pad, which has a thickness of 13 mm, is pasted on one side.
Place the test board flat on the center of the bottom flushing surface and the
upper edge surface of the tested product. Make the rubber surface close to the
tested surface. Apply the load vertically, so that the total load on the product is
1.47 kN. Keep it for 10 minutes. Observe and record whether there is
deformation or visible structural damage.
8.8 Function test of pan and urinal
8.8.1 Functional test device
8.8.1.1 For the functional test of the pan and urinal, it shall use a standardized
water supply system, that meets the requirements of E.1.
8.8.1.2 For the delivery characteristics of the drainage pipeline, it shall adopt
the test device for the drainage pipeline's delivery characteristics, which is
specified in Figure E.3. Among them, the drainage pipe, which is connected to
the pedestal pan's sewage draining exit is a transparent pipe with an inner
diameter of 100 mm; a 90° elbow is used to connect the lateral pipe. The length
of the lateral drainage pipe is 18 m. The downstream slope is 0.020. The drop
from the sewage draining exit of the bottom-drain pedestal pan to the center of
the lateral pipe is 200 mm.
8.8.1.3 The drainage pipeline's delivery characteristic test shall be carried out
on the device, that meets the requirements of 8.8.1.2, using the corresponding
standardized water supply system, that meets the requirements of 8.8.1.1.
Other functional tests of the pedestal pan shall use a standardized water supply
system, that meets the requirements of 8.8.1.1.
8.8.1.4 It shall use the flushing device, which is used together with the pedestal
pan; install it in the use state. Perform the functional test, on the standardized
water supply system.
8.8.1.5 Adjust the water supply pressure of the water supply system, in
accordance with Table 8, to determine the water consumption of the pedestal
pan. For other functional tests, under the state of maintaining the test water
consumption of the flushing device and the water supply system, they shall be
carried out, under the minimum test pressure specified in Table 8, except for
the splash-proof test, which is carried out under the maximum pressure as
specified in Table 8.
8.8.1.6 For the pedestal pans, which are not equipped with integral traps, they
shall be assembled or used with the manufacturer's matching traps, that meet
the requirements of 5.8.4, for functional tests. For the squatting pans, which are
not equipped with integral traps, they shall be subject to the functional test, in
accordance with 8.8.12.
8.8.2 Standardized debugging procedures for water supply systems
8.8.2.1 Standardized debugging procedure for test of water supply system
of cistern pan and urinal
The standardized debugging procedure, for test of water supply system of
cistern pan and urinal, shall meet the requirements of Figure E.1. The specific
procedures are as follows:
a) Adjust the pressure regulator 4, to reach a static pressure of (0.14 ± 0.007)
MPa.
b) Open the shut-off valve 10. Adjust the valve 6. Under the dynamic
pressure of (0.055 ± 0.004) MPa, the water flow measured by the flow
meter 7 is (11.4 ± 1) L/min.
c) Keep valve 8 fully open, during the test. After debugging, close valve 8.
d) Remove the stop valve. Install the sample.
8.8.2.2 Standardized debugging procedure for test of water supply system
of flush valve pan and urinal
The standardized debugging procedure, for test of water supply system of flush
valve pan and urinal, shall comply with Figure D.2. The specific procedures are
as follows:
a) Set the static pressure of Table 7 to 0.24 MPa, through the pressure
regulator 4.
......
Source: Above contents are excerpted from the PDF -- translated/reviewed by: www.chinesestandard.net / Wayne Zheng et al.
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