ISO 10692-2:2001

Overview

ISO 10692-2:2001 specifies mandatory type-testing and acceptance criteria for valve-to-cylinder connections used in the micro‑electronics industry, where the highest levels of gas purity and particle control are required. Part 2 of ISO 10692 focuses on the sequence of safety tests, functional/durability tests (recommended), and the required test reporting for valve-to-cylinder assemblies intended for specialty gases and gas mixtures used in microelectronics manufacturing.

Key topics and technical requirements

• Scope: Prototype type testing of the valve-to-cylinder connection to demonstrate safety, leak integrity and preservation of gas purity for micro‑electronics applications.
• Test specimen: Typical test on a cylinder ≈50 L water capacity, up to 200 bar service pressure (or appropriately sized cylinder if the connection is designed for smaller volumes).
• Mandatory safety test sequence:
  • Hydraulic cycling: 200 cycles from atmospheric pressure to test pressure (specified rate Δp/Δt ≤ 40 bar/min).
  • Drop/impact tests: six drops with 60° rotation between drops, performed on a concrete surface per ISO 11117 conditions.
  • Shock and rolling tests: shock tests per ISO 11117 and rolling down a 1.50 m ramp at 30° repeated (including reverse rotation).
  • Leak checks after each pressurization step using a visible leak detection method or equivalent sensitive methods (detection sensitivity quoted in the standard).
• Recommended functional/durability tests (Annex A):
  • Pressure leak tests at 1 bar, 10 bar and 120 % of working pressure using helium leak testing.
  • Thermal and pressure cycling, drying cycles (e.g., 40 vacuum drying cycles up to ~100 °C), vibration testing and multiple assembly/disassembly cycles.
• Helium leak test procedure (Annex B): enclosure of the joint with detection focused on joint leakage; recommended detection limit ≤ 10 mbar·L/s for micro‑electronics use.
• Vibration test (Annex C): three‑axis vibration profile with specified spectral density and one hour per axis (see Annex C for spectrum).
• Reporting: Written test report with sketches, parts lists, material certificates and signatures from test personnel. Any material change requires a new type test.

Practical applications and users

• Ensures valve-to-cylinder connections meet stringent cleanliness, leak-tightness and mechanical integrity required by:
  • Valve and cylinder manufacturers designing fittings for ultra‑high purity gases
  • Gas suppliers and specialty gas packagers for microelectronics fabs
  • Test laboratories performing type approval and qualification
  • Procurement, QA and safety engineers in semiconductor and MEMS manufacturing
• Helps reduce particle generation during valve installation, maintain gas purity in process tools, and provide documented evidence of compliance for purchasing/specification.

Related standards

• ISO 10297, ISO 11114‑1/‑2/‑3, ISO 11117 (all referenced within ISO 10692‑2)
• Relevant regional standards cited in the bibliography: EN 849, EN 962

Keywords: ISO 10692-2, gas cylinders, valve connections, micro-electronics industry, type testing, helium leak test, vibration test, valve-to-cylinder connection, gas purity, valve qualification.