Vitreous Sanitary Appliances (Vitreous China) - - Part 9: Specific Requirements of Pedestal Type Bidets 2004 Edition
This standard outlines the specific criteria for pedestal-style bidets crafted from vitreous china, detailing aspects such as design patterns, construction norms, dimensional limits, surface finishing, load capacity, inspection protocols, and labelling. It is intended for manufacturers, designers, and quality assurance professionals to ensure that bidets meet Indian regulatory requirements for durability, performance, and installation compatibility.
This standard outlines the specific criteria for pedestal-style bidets crafted from vitreous china, detailing aspects such as design patterns, construction norms, dimensional limits, surface finishing, load capacity, inspection protocols, and labelling. It is intended for manufacturers, designers, and quality assurance professionals to ensure that bidets meet Indian regulatory requirements for durability, performance, and installation compatibility.
Audience
Who Uses This Standard
Manufacturers of sanitaryware
Civil and plumbing engineering professionals
Quality assurance personnel
Architects and interior decorators
Construction contractors
Certification agencies
Sanitaryware sellers and distributors
Contents
Key Topics Covered
✓Design patterns and dimensions of pedestal bidets
✓Functional and connection-related measurements
✓Permissible dimensional variances
✓Material composition and glazing standards
✓Procedures for load bearing evaluation
✓Dimensions of waste outlet
✓Specifications for tap fitting openings
✓Labelling and certification protocols
✓Sampling and inspection methodologies
✓Installation guidelines and fixing methods
✓Surface smoothness and finishing requirements
✓Compliance with overall vitreous china standards
Structure
Table of Contents
1Scope and Essential Specifications▼
1. Scope
Defines dimensions, allowable tolerances, and plumbing connections for pedestal bidets with or without flushing rims.
Ensures compatibility with plumbing systems and interchangeability.
2. Key Functional Dimensions (Table 1)
Parameter
Symbol
With Flushing Rim
Without Flushing Rim
Max Length
L
600 mm
600 mm
Breadth
W
360 ± 20 mm
360 ± 20 mm
Height
H
380 ± 10 mm
380 ± 10 mm
Min Opening Length
LI
375 mm
375 mm
Min Opening Width
WI
220 mm
220 mm
3. Connection Dimensions (Table 2)
Parameter
Symbol
With Flushing Rim
Without Flushing Rim
Tap Hole Diameter
D1
35 ± 2 mm
35 ± 2 mm
Minimum Distance Between Outer Tap Holes
n
150 mm
150 mm
Center Tap Hole to Pop-up Hole Distance
c
≥ 50 mm
-
Max Distance from Center Tap Hole to Rim Edge
b
80 mm
80 mm
Max Distance from Center Tap Hole to Waste Hole Center
g
170 mm
170 mm
Vertical Distance Tap Platform to Waste Hole Bottom
p
250 mm
250 mm
Max Distance from Waste Hole Bottom to Floor
m
180 mm
180 mm
Radius of Free Space Cylinder Below Tap Hole (Height Based)
r, r1
25 mm (0–5 mm height), 30 mm (>5 mm height)
Same
Max Wall Thickness Near Tap Hole
S
18 mm
18 mm
2Referenced Standards and Dimensions▼
1. Functional Dimensions (as per Clause 6.1, Table 1)
All measurements are in millimeters.
2. Connection Dimensions (Clause 6.1, Table 2)
Specifies tap hole diameter, spacing between tap holes, pop-up hole positioning, and other plumbing-related distances.
3. Additional Details
Spray hole diameter requirements ranging from 30 mm minimum to 35 mm maximum.
3General Conditions and Requirements▼
Conformance with IS 2556 Part 1 for terminology, material properties, manufacturing procedures, glazing, defect criteria, minimum thickness, performance standards, and testing methods.
Dimensional criteria with detailed tolerances for bidets with and without flushing rims.
Connection dimensions ensuring compatibility with standard fittings and plumbing.
Material and glazing standards ensuring durability and quality.
4Design Patterns and Size Specifications▼
Patterns
Pattern 1: Bidets with flushing rim and spray hole.
Pattern 2: Bidets without flushing rim and with over rim water supply.
Size Details
Maximum length: 600 mm.
Breadth: 360 ± 20 mm.
Height: 380 ± 10 mm.
Minimum opening dimensions: Length 375 mm, Width 220 mm.
Connection Measurements
Tap hole diameter: 35 ± 2 mm.
Minimum spacing between tap holes: 150 mm.
Specific distances relating to pop-up holes, waste outlets, and rim edges defined for installation accuracy.
5Material Composition and Manufacturing▼
Materials adhere to IS 2556 Part 1 requirements covering vitreous china composition, manufacturing processes, glazing techniques, defect identification, and minimum thickness.
Dimensional and connection specifications as per Clause 6.1 ensure product uniformity.
Surface finish and glazing quality are critical to product durability and hygiene.
6Dimensions and Allowable Deviations▼
Functional dimensions and tolerances detailed in Table 1, Clause 6.1, specify maximum and minimum measurements for all bidet types.
Connection dimensions (Table 2) provide exact positioning and size for tap holes, waste outlets, and related parts.
Waste outlet sizes and positioning further specified to ensure plumbing compatibility.
7Surface Treatment and Glazing Standards▼
Surface finish and glazing conform to general IS 2556 Part 1 provisions.
Glazing must be uniform, smooth, and free from flaws such as blistering, crazing, or peeling.
Ensures hygienic surfaces and effective water flow, critical for sanitary applications.
8Load Capacity Testing Procedures▼
Load test involves applying 400 ± 8 kgf (approximately 4 ± 0.08 kN) using a wooden beam of 100 mm × 100 mm cross-section.
Beam is placed over the center of the bidet's top opening.
Load is maintained continuously for one hour.
Post-test inspection must confirm absence of any cracks, damage, or defects.
Bidet must be properly fixed to floor prior to testing.
9Sampling, Inspection, and Lot Acceptance▼
Sampling and inspection procedures follow guidelines set out in IS 9140.
Inspection levels (normal, tightened, reduced) and acceptable quality levels are specified.
Lot acceptance or rejection is determined based on sample results.
Test result rounding follows IS 2:1960 standards.
10Labelling, Marking, and Certification▼
Use of the Bureau of Indian Standards (BIS) Standard Mark is regulated under the BIS Act, 1986.
Manufacturers must obtain a BIS license to mark products with the Standard Mark.
The Standard Mark certifies conformity to IS 2556 Part 9 requirements.
Copyright restrictions apply to IS publications; reproduction requires authorization.
Contact details for BIS headquarters and regional offices provided for licensing assistance.
Frequently Asked
Popular Questions About IS 2556 PART 9
?What are the dimensional and tolerance requirements for pedestal bidets as per this standard?▼
The standard specifies maximum and minimum dimensions including a maximum length of 600 mm, breadth of 360 ± 20 mm, and height of 380 ± 10 mm for pedestal bidets, applicable to models with or without flushing rims. Opening dimensions must be at least 375 mm in length and 220 mm in width. Connection dimensions such as tap hole diameter (35 ± 2 mm), spacing between tap holes (minimum 150 mm), and distances from tap holes to waste outlet or rim edges are precisely defined to ensure installation compatibility.
?What is the required load bearing capacity for pedestal bidets according to this standard?▼
Pedestal bidets should withstand a load of 400 ± 8 kgf (approximately 4 ± 0.08 kN) applied via a wooden beam measuring 100 mm by 100 mm placed across the center of the bidet’s top opening for a continuous duration of one hour. The bidet must exhibit no damage or defects following this test, ensuring it can safely support typical user weight.
?Does the standard specify sizes and spacing for tap holes on pedestal bidets?▼
Yes, the standard mandates that the tap hole diameter must be 35 ± 2 mm for all bidet types. The minimum distance between two outer tap holes is 150 mm. For bidets with flushing rims, the center tap hole to pop-up hole distance must be at least 50 mm. Moreover, the distance from the center tap hole to the rim or bowl edge should not exceed 80 mm. Wall thickness near the tap fitting must not exceed 18 mm, ensuring proper fitting and structural integrity.
?How are glazing and surface finish of vitreous china bidets addressed in this standard?▼
The standard requires the interior surfaces of the bidet, including the waste outlet area, to be uniformly glazed and smooth without defects like blistering or crazing. This ensures hygienic surfaces that facilitate efficient water flow and ease of cleaning. The glazing must comply with the minimum thickness and quality standards set out in the general vitreous china provisions.
?What are the marking and certification requirements for products complying with this standard?▼
Use of the BIS Standard Mark on pedestal bidets is regulated by the Bureau of Indian Standards Act, 1986. Manufacturers must obtain a valid BIS license before applying this mark, which certifies that the product meets IS 2556 Part 9 specifications. Licensing and usage are subject to BIS rules, and manufacturers should contact BIS regional offices for detailed guidance. Unauthorized marking is prohibited.
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