IS 2556 Part 14:1995 delineates the specifications for integrated vitreous china squatting pans, detailing their design patterns, dimensional criteria, build quality, surface finishing, testing procedures, inspection protocols, and marking guidelines. Primarily emphasizing the long pattern 500 model yet accommodating alternate dimensions upon agreement, this standard guarantees operational efficiency and plumbing system compatibility. It is essential for manufacturers, engineers, and sanitation officials involved in the design, fabrication, installation, and quality control of these sanitary fixtures.
Overview
IS 2556 Part 14:1995 delineates the specifications for integrated vitreous china squatting pans, detailing their design patterns, dimensional criteria, build quality, surface finishing, testing procedures, inspection protocols, and marking guidelines. Primarily emphasizing the long pattern 500 model yet accommodating alternate dimensions upon agreement, this standard guarantees operational efficiency and plumbing system compatibility. It is essential for manufacturers, engineers, and sanitation officials involved in the design, fabrication, installation, and quality control of these sanitary fixtures.
Audience
Contents
Structure
This section defines the extent of IS 2556 Part 14, specifying requirements for integrated vitreous china squatting pans including their designs, dimensions, permissible tolerances, construction parameters, surface finish, testing protocols, inspection processes, and marking rules.
Key specifications include functional dimensions (see Table 1, Fig. 1) such as pan length of 500 mm, maximum overall length of 730 mm, opening dimensions, height, bottom slope, and minimum water seal depth of 50 mm. Connecting dimensions (Table 2) detail inlet socket depth, outlet diameters, and outlet angles. Two-piece bend dimensions (Table 3) specify diameters and bend heights.
This chapter consolidates critical references and dimensional data pertinent to integrated squatting pans as per IS 2556 Part 14. It lays out the functional dimensions, connecting parameters, and two-piece bend dimensions with precise measurements, tolerances, and symbols for clarity and conformity.
Defines essential terms and symbols used throughout the standard, elaborating on the functional and connecting dimensions, including length, width, height, slope, water seal depth, and outlet related measurements to ensure uniform understanding.
Describes the standard patterns and sizes of integrated squatting pans, focusing on the long pattern 500 design. Includes detailed tables and figures illustrating functional, connecting, and two-piece bend dimensions to guide manufacturers and engineers.
Provides detailed dimension limits and acceptable tolerance ranges for the squatting pans and associated bends, emphasizing critical features like water seal depth, outlet dimensions, and overall pan measurements. Notes on ovality allowances and referencing IS 2556 Part 1 for unspecified tolerances are included.
Outlines the construction criteria for integrated squatting pans, including all relevant functional and connecting dimensions, bend specifications, and additional construction-related parameters to ensure structural integrity and plumbing compatibility.
Details the requirements for the surface finish and glazing of the pans, including the smudge test using quartz powder on the interior surface up to 40 mm below the flushing rim. Emphasizes the necessity for a smooth, defect-free glaze without residual smudging post-flush, referring to IS 2556 Part 1 for general glazing provisions.
Describes essential performance evaluations such as the toilet paper discharge test, water seal depth verification, and dimensional checks. Provides detailed test procedures and criteria to ensure functionality, discharge efficiency, and compliance with the specified requirements.
Explains the sampling plans, process inspections, and lot inspection methods based on IS 9140:1995. Specifies key dimensional and performance parameters to be checked during quality control to maintain consistent product standards.
Specifies the marking requirements for integrated squatting pans, including manufacturer identification and batch numbering. Details the conditions for use of the BIS Standard Mark under the Bureau of Indian Standards Act, 1986, outlining the licensing procedures and certification assurances.
Lists the members of the committee responsible for IS 2556 Part 14, including chairpersons, representatives from industry, research, public health engineering, municipal authorities, and BIS. Highlights the subcommittee on domestic sanitary appliances and their role in formulating the standard.
Frequently Asked
IS 2556 Part 14 stipulates precise functional and connecting measurements to ensure proper fit and operation of integrated squatting pans. Key connecting dimensions include a flush inlet socket depth of at least 25 mm, minimum 70 mm distance from socket end to outlet, outlet internal diameter not less than 80 mm (with permissible ovality), external outlet diameter of 102 ±5 mm, flush inlet socket internal diameter of 50 ±3 mm, and a serrated outlet length of at least 40 mm. The outlet center is positioned 140 mm above the pan bottom with an outlet angle of 104°. Functional dimensions ensure usability and installation compatibility, including a minimum water seal depth of 50 mm and smooth glazed interior surfaces.
To comply with IS 2556 Part 14, integrated squatting pans must undergo general tests as outlined in IS 2556 Part 1:1994, covering material quality, glazing integrity, dimensional accuracy, and performance. Specific tests include verifying functional dimensions, especially ensuring the water seal depth is at least 50 mm, confirming pattern dimensions, checking the surface finish and glazing quality, and passing the toilet paper discharge test, which requires successful discharge in at least three out of four flushes. Sampling and inspection procedures follow IS 9140:1995, ensuring product consistency and durability.
IS 2556 Part 14 mandates that the pan's interior surface, up to 40 mm below the flushing rim, be treated with a contrasting quartz powder passing through a 1.18 mm IS sieve during the smudge test. After flushing, no residual smudge should remain, indicating a smooth and defect-free glaze. The glazing must adhere to the general standards described in IS 2556 Part 1, ensuring uniform thickness, absence of defects like cracks or blisters, and a hygienic, easy-to-clean finish for durability and sanitary compliance.
Yes, IS 2556 Part 14 requires the water seal depth to be at least 50 mm to effectively prevent sewer gas ingress. The flushing system should utilize a 10-litre cistern meeting IS 774:1984 standards, installed so the vertical distance from the pan top to the cistern bottom is 125 cm. A 32 mm diameter pipe connects the cistern to the pan. The pan must retain a minimum of 10 litres of water between normal and highest water levels to ensure efficient flushing and odor control.
According to IS 2556 Part 14, each integrated squatting pan should be indelibly marked with the manufacturer's name or trademark and the batch or lot number for traceability. Additionally, products may bear the BIS Standard Mark subject to licensing under the Bureau of Indian Standards Act, 1986. Manufacturers must obtain a BIS license to use this mark, which certifies conformity to the standard and assures quality. The marking ensures accountability and facilitates quality assurance throughout the product's lifecycle.
Ask AI about any clause, requirement, or provision in IS 2556 PART 14. Get instant, clause-cited responses powered by our indexed library.
Free tier includes 150 queries (50 AI + 100 Reference) · No credit card required