Similar International Standards
ASME B31.8-2022American Society of Mechanical Engineers (ASME), USA
HighCurrent
Gas Transmission and Distribution Piping Systems
Comprehensive code for design, fabrication, installation, testing, and operation of gas pipelines.
EN 1594:2013European Committee for Standardization (CEN), Europe
HighCurrent
Gas infrastructure - Pipelines for maximum operating pressure over 16 bar - Functional requirements
Focuses on functional requirements for high-pressure gas transmission pipelines.
CSA Z662:23Canadian Standards Association (CSA Group), Canada
HighCurrent
Oil and gas pipeline systems
Covers the entire lifecycle of both oil and gas pipeline systems, from design to decommissioning.
IGEM/TD/1 Edition 5Institution of Gas Engineers and Managers (IGEM), UK
HighCurrent
Steel Pipelines and Associated Installations for High Pressure Gas Transmission
Provides detailed specifications for high-pressure gas transmission pipelines in the UK context.
Key Differences
≠IS 15663 mandates specific, prescriptive minimum separation distances between parallel pipelines (e.g., 5.0m), whereas standards like ASME B31.8 are less prescriptive, leaving the distance to be determined by engineering analysis considering construction, maintenance, and safety.
≠While both use Location Class systems, IS 15663 defines them based on a 'cluster of dwelling units' specific to Indian geography, which can lead to different classifications for similar land use compared to the dwelling counts per unit area in ASME B31.8.
≠IS 15663 is more prescriptive about requiring casing pipes for road and rail crossings, while modern international standards more readily accept and often prefer advanced trenchless methods like Horizontal Directional Drilling (HDD) without casings, focusing on pipe stress analysis.
≠IS 15663 references a mix of API and Indian Standards (IS) for materials, welding, and inspection. International codes primarily reference standards like API, ASTM, and ASME (in the US) or EN (in Europe), which can affect material sourcing and qualification procedures.
Key Similarities
≈All standards employ the fundamental Barlow's formula for pipe wall thickness calculation, incorporating a location-based Design Factor (F) to reduce allowable stress in more populated areas.
≈The requirement for a dual corrosion protection system, consisting of a primary external coating (like 3LPE or FBE) and a secondary cathodic protection system, is a universal principle in IS 15663 and its international counterparts.
≈Post-construction hydrostatic testing to a pressure significantly above the Maximum Allowable Operating Pressure (MAOP) to prove pipeline integrity is a mandatory and fundamentally similar process across all major codes.
≈The principle of increasing the minimum depth of cover for pipelines at sensitive locations such as road, railway, and watercourse crossings is consistently applied across all standards to provide additional mechanical protection.
≈All codes mandate the use of qualified welding procedures and certified welders for pipeline construction, with API 1104 being a commonly accepted standard for qualification in IS 15663 and ASME B31.8.