Standard Guides:WeldingPipingASMEAPIAsset Matrix
Leak Testing
SpecializedSpecialized & Robotic • LT

Leak Testing (LT)

Method Overview

Detection and localization of envelope containment breaches using bubble, pressure change, or helium tracer gas sniffers.

Core Method Specifications

Technique IDLT
AcronymLT
CategorySpecialized
ModalitySpecialized & Robotic
Default Report TemplateLT-Standard-Template

Target Applications & Governing Standards

1 Scopes Configured
Valves & Pressure Control
API 598 API 527
Target Assets / Components:
Safety Relief Valves (PSV)Control Valve Body Gaskets
Detectable Defects & Anomalies:
• Seat Leakage Rate• Stem Packing Gas Escape

Technique-to-OEM Compatibility Matrix

Verified manufacturers, instrument models, and diagnostic portals supporting LT.

4 Verified OEMs
Inficon

Inficon

High-sensitivity helium leak detectors and vacuum gas analysis instrumentation.

Modalities:LT
OEM Profile Inficon Support Hub
OEM Site

Pfeiffer Vacuum

OEM Manufacturer for LT inspection systems.

Verified Partner

Leybold

OEM Manufacturer for LT inspection systems.

Verified Partner

Agilent

OEM Manufacturer for LT inspection systems.

Verified Partner
ASME Sec V & ISO 9712 Qualified
Rent LT Instruments OEM Hardware CatalogPost LT Project Scope
AI-Assisted Technical Reference & Regulatory DisclaimerEducational & Reference Only

Technical articles, damage mechanism guides, inspection scopes, engineering formulas, and code summaries published across the NDT Exchange knowledge base are synthesized with the assistance of Artificial Intelligence (AI) and specialized industrial engineering reference models.

While all content is cross-referenced against authoritative standards (ASME, API, AWS, ISO, ASTM, NACE/AMPP), it is provided strictly for educational, preliminary scoping, and reference purposes. It does not constitute formal professional engineering advice, procedure qualifications (WPS/PQR), or certified inspection sign-offs. Always verify testing parameters, wall thickness sizing, and flaw acceptance criteria against the latest governing code edition and consult a certified Level III, Professional Engineer (PE), or certified inspector (API 510/570/653, AWS CWI, CSWIP) prior to field execution.