Overview - EN ISO 5842:2023 (ISO 5842:2022)
EN ISO 5842:2023 specifies laboratory methods for argon detection in powder metallurgy (PM) components consolidated by hot isostatic pressing (HIP). The standard describes two analytical techniques - gas chromatography (GC) and mass spectrometry (MS) - and covers calibration, functionality testing of equipment, sampling, sample preparation and the test procedures needed to detect argon trapped in PM HIP parts. Components produced by additive manufacturing are explicitly excluded. The purchaser of PM HIP services must request argon testing and specify any agreed argon limit.
Key topics and technical requirements
- Analytical techniques: Procedures for argon detection using gas chromatography and mass spectrometry, including principles and apparatus requirements.
- Equipment performance: Requirements for calibration and functionality tests for both GC and MS systems, plus statements on equipment detection limits.
- Sampling & sample prep: Methods for taking representative samples from PM HIP components (including can/capsule considerations), and sample preparation steps prior to analysis.
- Test procedure: Stepwise guidance for conducting argon detection tests with GC and MS, including blank tests and use of reference samples for functionality assessment.
- Terminology & traceability: Definitions (e.g., detection limit, calibration, blank test, functionality test) to ensure consistent application and reporting.
- Exclusions & responsibilities: Additive-manufactured components excluded; purchaser responsibility to specify testing requirement and limit values in purchase orders.
Applications and who uses this standard
EN ISO 5842:2023 is practical for organizations concerned with gas contamination in HIP-consolidated components:
- PM HIP service providers - implement testing as part of quality control and acceptance criteria.
- Materials and metallurgical engineers - evaluate residual inert-gas entrapment that may affect mechanical properties.
- Quality control and analytical laboratories - perform validated GC or MS argon detection and report results per the standard.
- Powder producers and powder handling teams - identify argon sources (powder production, filling, or HIP chamber ingress).
- Purchasers and specifiers - define argon testing requirements and acceptance limits in procurement documents.
Related standards
- ISO 5842:2022 - original international text adopted as EN ISO 5842:2023
- Standards referenced in terminology and methods (e.g., ISO 11323, ISO 14532, ISO 3529-3) provide complementary definitions and instrument descriptions.
Keywords: EN ISO 5842:2023, ISO 5842:2022, powder metallurgy, hot isostatic pressing, argon detection, gas chromatography, mass spectrometry, PM HIP, sampling, calibration, functionality test.
