Overview
ISO 22108:2008 - "Space systems - Non‑flight items in flight hardware - Identification and control" - defines how to identify, track and verify the complete removal of critical non‑flight items from flight hardware prior to launch. The standard is intended to be used alongside project‑specific quality procedures during assembly, integration and test (AIT), environmental testing, fuel loading and launch‑site activities. Removal verification for non‑critical items is outside the standard’s scope.
Key topics and requirements
- Scope and definitions
- Defines critical non‑flight item (e.g., protective covers, locking pins, ground‑support interfaces) versus other non‑flight items (e.g., tape, connector caps).
- Control method (minimum elements)
- Log: maintain a dedicated non‑flight items log per piece of flight hardware recording identities, serial numbers and removal status.
- Visual identification: apply streamers or coloured covers; each item and streamer uniquely identified (text like “REMOVE BEFORE FLIGHT” recommended).
- Storage: place removed items and associated tools in a dedicated, controlled storage facility (accountability box/trays); large items stored in a secure location.
- Responsibilities
- Assign persons or bodies for identification, listing, log maintenance, secure storage and sign‑off on removal.
- Removal and evidence
- Record each removal with technician and quality representative signatures. Provide lasting evidence (e.g., photographs) attached to the log and retain records until mission confirmation or end of mission.
- Materials and construction
- Streamers/covers must be compatible with expected environments (vacuum, temperature), clean‑room safe, non‑degrading attachments, and use attention‑drawing colours (ISO 3864‑1, ISO 14625 referenced).
- Operational practices
- Recurrent removal/replacement events must be reflected in the log to maintain an accurate current configuration.
Applications and users
ISO 22108 is practical for:
- Spacecraft manufacturers and subsystem suppliers
- Systems and integration engineers
- Quality/assurance and configuration managers
- Launch service providers and ground support equipment (GSE) teams
- Assembly, test and launch‑site technicians
Use cases include pre‑launch checklists, acceptance procedures, AIT workflows, and accountability systems to prevent retained non‑flight items that could jeopardize mission performance.
Related standards
- ISO 3864‑1 - Safety colours and signs (colour usage)
- ISO 14625 - Ground support equipment general requirements
- Referenced industry documents: NAS 1091, NAS 1756 (streamer examples)
Keywords: ISO 22108, non‑flight items, flight hardware, identification, streamers, accountability, removal verification, space systems, launch safety.