Overview
EN ISO 10692-2:2001 (ISO 10692-2:2001) specifies mandatory type testing and performance requirements for valve-to-cylinder connections used in the microelectronics industry where ultra-high purity gases and extremely low particulate contamination are required. It is a performance-based standard (not a dimensional system) that defines safety, leak integrity and durability checks for connections between gas cylinders and valves used in semiconductor and microelectronic manufacturing.
Key topics and technical requirements
- Scope: Applies to valve-to-cylinder connections for gases and gas mixtures used where the highest cleanliness and freedom from particles are demanded.
- Mandatory safety test sequence (prototype testing on a ~50 L cylinder or specified smaller size):
- Fill cylinder with water and tighten connection.
- 200 hydraulic pressure cycles from atmospheric to test pressure (rate Δp/Δt ≤ 40 bar/min).
- Impact test with protective device fitted (six pushes with 60° rotation between impacts); leak check.
- Drop test per ISO 11117 after refitting protective device.
- Roll/stop test: roll down 1.5 m ramp at 30° five times, repeat with reverse rotation; leak checks between steps.
- Leak integrity checks: Leak testing after each step using air or nitrogen at 10 bar and leak detection fluid (1 min) or equivalent methods capable of detecting ~10 mbar·l/s; Annex B describes a helium leak test procedure for higher sensitivity used in performance testing.
- Performance (recommended) tests (Annex A): include helium leak testing at 1 bar, 10 bar and 120% of working pressure; charging/emptying cycles; temperature cycling (−50 °C to +65 °C); 40 bake cycles (25 °C to 100 °C at ≤1 mbar); vibration testing (Annex C); repeated make/break cycles (20 times).
- Compatibility & marking: Valves must meet ISO 10297 and ISO 11114 (parts 1–3) requirements for material compatibility and be marked accordingly.
- Documentation: A detailed test report (drawings, materials, certificates) must be produced and be available from the valve manufacturer.
Applications and users
This standard is intended for:
- Valve and cylinder manufacturers designing connections for ultra-high purity gas service.
- Gas suppliers and semiconductor fabs specifying contamination-controlled gas delivery systems.
- Test laboratories performing type approval and leak/vibration testing.
- Procurement and quality engineers evaluating valve-cylinder interfaces for clean manufacturing environments.
Practical benefits include validated leak-tight, durable connections that minimize particle generation and contamination risk in microelectronics fabrication.
Related standards
- ISO 10297 - Refillable gas cylinder valves - Specification and type testing
- ISO 11114-1 / 11114-2 / 11114-3 - Compatibility of materials with gas contents (metallic, non‑metallic, autogenous ignition)
- ISO 11117 - Valve protection caps and guards - design, construction and tests
Keywords: EN ISO 10692-2, ISO 10692-2, gas cylinder valve connections, microelectronics industry, ultra high purity gas, type testing, helium leak test, vibration test, performance testing.
