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IS 14333:1996 is the Indian Standard (BIS) for high density polyethylene (hdpe) pipes for sewerage, industrial effluent and drainage. This standard specifies the requirements for high-density polyethylene (HDPE) pipes, ranging from 16 mm to 1000 mm diameter, intended for buried sewers, drainage, and the conveyance of industrial and chemical effluents. It covers material grades (PE 63, PE 80, PE 100), dimensions, pressure ratings, and performance criteria for ensuring pipe quality and longevity.
Specifies requirements for HDPE pipes specifically designed for sewerage, industrial effluent, and drainage applications.
Overview
Status
Current
Usage level
Frequently Used
Domain
Water Resources — Drainage, Sewerage and Sanitary Fittings
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
Practical Notes
! The standard primarily focuses on black pipes, as the specified carbon black content provides UV protection crucial for storage and handling before installation.
! Jointing is a critical aspect not covered by this standard; butt-fusion or electro-fusion techniques are typically used and require skilled operators and proper equipment to ensure a leak-proof system.
! Ensure the correct PN (Pressure Nominal) class is selected based on a comprehensive analysis of internal pressure, external soil/traffic loads, and potential surge pressures.
Consolidated list per BIS. For the text of each amendment, refer to the BIS portal link above.
HDPEpolyethyleneplastic
International Equivalents
Similar International Standards
EN 12666-1:2005+A1:2007CEN (European Committee for Standardization), Europe
HighCurrent
Plastics piping systems for non-pressure underground drainage and sewerage - Polyethylene (PE) - Part 1: Specifications for pipes, fittings and the system
Directly equivalent, covering solid wall PE pipes for non-pressure underground sewerage and drainage.
ISO 8772:2006ISO (International Organization for Standardization), International
HighCurrent
Plastics piping systems for non-pressure underground drainage and sewerage — Polyethylene (PE)
Specifies requirements for solid wall PE pipes for the same non-pressure drainage and sewerage applications.
AS/NZS 5065:2005Standards Australia / Standards New Zealand, Australia/New Zealand
HighCurrent
Polyethylene and polypropylene pipes and fittings for drainage and sewerage applications
Covers PE (and PP) pipes for drainage and sewerage, including solid wall pipes similar to IS 14333.
ASTM F714-23ASTM International, USA
MediumCurrent
Standard Specification for Polyethylene (PE) Plastic Pipe (SDR-PR) Based on Outside Diameter
General specification for OD-controlled PE pipe; not specific to sewerage, but can be used for it.
Key Differences
≠IS 14333:1996 uses older material designation based on IS 7328 (e.g., PEEWA-45-T006), whereas modern international standards like EN 12666-1 use PE 80 and PE 100 classifications based on Minimum Required Strength (MRS).
≠Modern standards (EN 12666-1, ISO 8772) define mandatory Ring Stiffness Classes (e.g., SN2, SN4, SN8 in kN/m²), which is a critical performance parameter for buried non-pressure pipes. IS 14333 controls wall thickness via SDR but does not classify pipes by ring stiffness.
≠IS 14333:1996 does not specify a requirement for Oxidation Induction Time (OIT), a key test for long-term thermal stability and material longevity. In contrast, ISO 8772 and EN 12666-1 mandate OIT testing (e.g., ≥ 20 min at 210°C).
≠While IS 14333 strictly specifies that pipes shall be black, international standards like EN 12666-1 are more flexible, allowing for co-extruded colored stripes (e.g., brown for sewerage) on a black pipe for identification purposes.
Key Similarities
≈All standards specify high-density polyethylene (HDPE) as the primary raw material, chosen for its chemical resistance, durability, and flexibility.
≈The primary intended application across IS 14333 and its international counterparts is for buried, non-pressure systems for conveying sewerage, industrial effluent, and drainage water.
≈A requirement for carbon black content (typically in the 2.0% to 2.5% range) and its fine dispersion is common to all standards for black pipes to ensure UV protection during outdoor storage and handling.
≈The longitudinal reversion test (or heat reversion) is a common requirement to check for residual stresses from the extrusion process, with a typical maximum allowable shrinkage of 3% at 110°C.
Parameter Comparison
Parameter
IS Value
International
Source
Material Designation System
Grade based on IS 7328 (e.g., PEEWA-45-T006)
MRS based classification (e.g., PE 80, PE 100)
EN 12666-1
Carbon Black Content
2.5 ± 0.5 %
2.25 ± 0.25 %
EN 12666-1
Longitudinal Reversion (Max)
≤ 3% (at 110°C)
≤ 3% (at 110°C)
ISO 8772
Oxidation Induction Time (OIT)
Not Specified
≥ 20 minutes at 210°C
ISO 8772
MFI Change after Processing (Max)
≤ 25% from base resin
≤ 25% from base resin
ISO 8772
Ring Stiffness Classification
Not defined; stiffness is a function of SDR.
Defined by SN Classes (SN2, SN4, SN8, SN16).
EN 12666-1
⚠ Verify details from original standards before use
Key Values7
Quick Reference Values
Carbon black content2.25 ± 0.25 percent by mass
Melt Flow Rate (MFR) deviation± 20 percent from the value specified by the manufacturer
Longitudinal Reversion at 110°C≤ 3 percent
Minimum Required Strength (MRS) for PE 10010.0 MPa
Minimum Required Strength (MRS) for PE 808.0 MPa
Hydrostatic stress for PE 100 at 20°C (100h)12.4 MPa
Hydrostatic stress for PE 80 at 80°C (165h)4.0 MPa
Tables & Referenced Sections
Key Tables
Table 1 - Dimensions of High Density Polyethylene Pipes
Table 2 - Tolerances on Wall Thickness of Pipes
Table 3 - Performance Requirements of High Density Polyethylene Pipes for Sewerage
What material grades are covered by this standard?+
The standard covers pipes made from PE 63, PE 80, and PE 100 material grades as defined in IS 7328 (Clause 4.1).
What are the standard pressure classes (PN) specified?+
The standard includes PN 2.5, PN 4, PN 6, and PN 8. Higher pressure classes can be used if required (Clause 5.2).
What is the requirement for UV protection?+
The pipe compound must contain 2.25 ± 0.25 percent of finely dispersed carbon black to protect against UV degradation (Clause 4.1.2).
How should pipes be marked for identification?+
Pipes must be marked with the manufacturer's name, material grade (e.g., PE 100), PN class, nominal diameter, and the ISI Certification Mark at intervals of not more than 3 meters (Clause 10.1).