BIS Certification for CPVC Pipes for Potable Hot and Cold Water Distribution Supplies IS 15778

This is the Indian standard that defines the requirements for CPVC pipes used in hot and cold water distribution systems. It is issued by the Bureau of Indian Standards to ensure that these pipes are:

• Made from proper CPVC material to handle temperature and pressure conditions
• Suitable for use in domestic and commercial water supply systems
• Manufactured with accurate size, wall thickness, and pressure ratings
• Resistant to corrosion, scaling, and chemical effects in water
• Properly tested for strength, hydrostatic pressure, and overall performance

• Manufacturers – Need to obtain BIS certification for CPVC pipes produced in India before selling them
• Importers – Must ensure that imported pipes meet BIS standards and are certified
• Suppliers/Distributors – Should deal only in BIS-certified pipes for market compliance

• R (Required): Tests to be performed in the manufacturer’s in-house laboratory
• S (Subcontracting Allowed): Tests that can be conducted in BIS-approved or NABL-accredited external labs

• CPVC Resin Quality Check (S): Ensures resin meets required chemical composition standards
• CPVC Compound Testing (S): Verifies properties like chlorine content, density, and material consistency
• Material Source Verification (S): Confirms uniform quality when raw material source or composition changes

• Diameter and Wall Thickness (R): Ensures pipe dimensions are within specified limits
• Pipe Length and End Finish (R): Checks proper size and finishing for jointing
• Visual Inspection (R): Ensures pipes are free from cracks, bubbles, or surface defects
• Opacity Test (S): Confirms pipe does not allow light penetration beyond limits Thermal and Physical Performance Tests
• Reversion Test (R): Checks dimensional stability under heat
• Vi cat Softening Temperature (S): Measures resistance to high temperature
• Density Test (R): Ensures uniform structure and material quality
• Effect on Water Test (S): Ensures no harmful substances affect potable water

• Hydrostatic Pressure Test (R/S): Confirms pipe can withstand internal pressure at different temperatures
• Thermal Stability Test (S): Evaluates long-term performance under pressure and heat
• Resistance to External Impact (R): Checks pipe strength against external blows
• Flattening Test (R): Ensures pipe maintains shape under load
• Tensile Strength Test (R): Measures resistance to pulling forces

To obtain the license, the BIS certification process ensures that these water supply pipes meet the required standard for proper and efficient operation as defined by the Bureau of Indian Standards (BIS). The process includes the following steps:

1. Online Registration: Manufacturers register on the BIS Manak Online Portal by submitting company details, factory information, and product specifications. Foreign manufacturers must appoint an Authorized Indian Representative (AIR) in India.
2. Testing at BIS-Approved Laboratory: Product samples are tested in BIS-approved laboratories to evaluate pressure strength, dimensional accuracy, thermal stability, chemical resistance, and overall performance for safe hot and cold water supply applications.
3. Application Submission: The application is submitted along with laboratory test reports, technical documents, manufacturing process details, and factory information. Foreign manufacturers must also provide AIR-related documents.
4. Factory Inspection: BIS officials conduct an on-site inspection of the manufacturing unit to verify production processes, quality control systems, safety measures, and compliance with the standard.
5. Grant of BIS License: If all requirements are successfully met, BIS issues the certification license under Scheme-I, allowing the manufacturer to produce and sell certified products.
6. Use of ISI Mark After certification approval, the manufacturer is permitted to use the ISI mark along with a CM/L number on the product, confirming compliance with the standard

• Application fee for foreign manufacturers is payable via SWIFT (SAARC countries may pay in INR with applicable GST).
• Audit charges for foreign manufacturers vary based on country/location.
• Marking fee depends on the product category and production volume (MSME benefits may apply).
• Testing charges are paid directly to BIS-approved laboratories.
• Consultancy fees depend on product type and factory location.