JC/T 932-2013 English PDF (JC/T932-2013)

Delivery: 3 seconds. Download true-PDF + Invoice.
Get QUOTATION in 1-minute: Click JC/T 932-2013
Historical versions: JC/T 932-2013
Preview True-PDF (Reload/Scroll if blank)

JC/T 932-2013: Drainage fittings for sanitary wares
JC/T 932-2013
Construction Material Industry Standard
of the People’s Republic of China
ICS 90.140.70
Q 31
Record No.: 40958-2013
Replacing JC/T 932-2003
Drainage fittings for sanitary wares
ISSUED ON: APRIL 25, 2013
IMPLEMENTED ON: SEPTEMBER 1, 2013
Issued by: Ministry of Industry and Information Technology of the People's
Republic of China
Table of Contents
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 6 
4 Materials ... 7 
5 Technical requirements ... 7 
6 Test methods ... 10 
7 Inspection rules ... 15 
8 Marking, packaging, transportation and storage ... 18 
Annex A (Normative) Connection dimensions of waste fitting ... 19 
Annex B (Normative) Dimensions of flow test etalon of waste fitting ... 23 
Drainage fittings for sanitary wares
1 Scope
This standard specifies the terms and definitions, materials, technical requirements,
inspection methods, inspection rules, marking, packaging, transportation and storage of
drainage fittings for sanitary wares (hereinafter referred to as “waste fitting”).
This standard is applicable to the waste fitting products such as wash basin, washing-tank,
bath-tub, bidet, shower room and urinal, which are connected to gravity drainage pipe.
2 Normative references
The following referenced documents are indispensable for the application of this
document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
GB/T 197-2003 General purpose metric screw threads—Tolerances
GB/T 1176 Specification for cast copper alloys
GB/T 1527 Drawn tube of copper and copper alloys
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 2829-2002 Sampling procedures and tables for periodic inspection by
attributes (Apply to inspection of process stability)
GB/T 6461-2002
Methods for Corrosion Testing of Metallic and Other Inorganic
Coatings on Metallic Substrates - Rating of Test Specimens and
Manufactured Articles Subjected to Corrosion Tests
GB/T 7307 Pipe threads with 55 degree thread angle where pressure-tight
joints are not made on the threads
GB/T 10125-1997 Corrosion tests in artificial atmospheres - Salt spray tests
GB/T 12670 Polypropylene (PP) resin
GB/T 12671 Polystyrene (PS) resin
GB/T 12672 Acrylonitrile-butadiene-styrene (ABS) resin
the vertical distance from the top of the bend of the inner wall of the trap and the lowest
point of the inner wall of horizontal drainage pipe.
4 Materials
4.1 The materials of casting copper parts shall meet the requirements of GB 1176. It
may also be made of other copper materials that guarantee the technical requirements.
4.2 The copper pipe shall meet the requirements of GB/T 1527.
4.3 The plastic materials shall meet the requirements of GB 12670, GB 12671 and GB
12672.
4.4 The rubber materials shall meet the requirements of GB/T 21873 and HG/T 3097.
4.5 The stainless steel materials shall meet the requirements of GB/T 20878.
4.6 In case that other metallic and non-metallic materials are adopted for product
accessories, the materials shall meet corresponding standards.
5 Technical requirements
5.1 Requirements for connection dimension
The dimension of connection of waste fitting shall meet the requirements of Annex A.
5.2 Processing and assembling
5.2.1 The exterior surface of metal parts of product shall be free from defects such as
sand hole, shrinkage cavity, crack and air hole.
5.2.2 The surface of the plastic parts shall be free from defects such as significant ripple,
adhesive mark, significant scratch, modified damage. Plastic trap shall be uniform in color
and luster and be free from discoloration decomposition line.
5.2.3 The surface of the thread shall be bright and clean, and free from significant
defects such as dent and broken tooth. The connected common thread shall meet Grade
7 tolerance precision requirements of GB/T 197; and the precision of unsealed connection
pipe thread shall not be lower than Grade B precision of GB/T 7307.
5.2.4 The operating force of switch of puller waste fitting shall not be greater than 10N;
and that of waste fitting with spring start-stop shall not be greater than 25N.
5.2.5 The assembled waste fitting shall be connected firmly and free from looseness; the
action shall be flexible and free from jam.
requirements of 5.7.1.
5.8 Bearing performance
For test conducted according to the method in 6.8, the significant surface of waste fitting
matching bath-tub and shower room shall be free from crack, and the deformation amount
shall not be greater than 3%.
5.9 Service life
After 10 000 cycles of service life test according to the method in 6.9, the product shall be
free from significant defect, and convenient for disassembly, and free from the defects that
affect the use function; after service life test, test is conducted according to 5.2.4. The
change of test result shall not exceed ±20%, and shall meet the requirements of 5.7.1.
5.10 Performance requirements for waste fitting of washing-tank
The washing-tank product shall also meet the requirements of the following terms and
conditions, except above requirements.
5.10.1 Water absorption test
It is tested according to the method in 6.10.1, and the weight change of the plastic
accessories shall not be greater than 0.50%.
5.10.2 Hot oil test
It is tested according to the method in 6.10.2. the obvious surface of plastic parts shall be
free from fracture, crack, bubbling, delaminating and permanent discoloration etc.
5.10.3 Dotty impact
For test conducted according to the method in 6.10.3, the surface of waste fitting shall be
free from significant damage.
6 Test methods
6.1 Test on requirements for connection dimension
The test on dimension of connection of waste fitting shall be conducted with Vernier
caliper with precision of 0.02 mm or test equipment with equivalent precision.
6.2 Test on processing and assembling test
6.2.1 Inspect the processing quality of metal parts of product visually.
6.2.2 Inspect processing quality and appearance quality of plastic products visually.
6.2.3 Inspect the surface quality of thread visually, and the thread precision shall be
tested with thread gauge at required standard level.
6.2.4 Install the waste fitting on test device according to normal use status; operate
repeatedly for three times; test the operative force of switching-on and switching-off of
waste fitting with force-meter with precision of 0.01 N.
6.2.5 The assembly test of waste fitting shall be conducted by hand-feeling.
6.3 Test on appearance
6.3.1 Inspect the appearance of product visually.
6.3.2 Visual inspection shall be carried out on the polished surface of product under
natural scattered light or white light without reflected light. The illuminance is not lower
than 300 lx.
6.3.3 Visual inspection shall be carried out on the plated-surface of product under
natural scattered light or white light without reflected. The illuminance is not lower than
300 lx.
6.3.4 Acetic acid-salt spray test shall be conducted on plated-surface of waste fitting for
24h according to GB/T 10125-1997. The results are rated according to GB/T 6461-2002.
6.4 Test on requirements for wall thickness of waste fitting pipe
The test on thickness shall be conducted wi...