Overview
EN ISO 8655-7:2022/A1:2024 is the CEN-endorsed Amendment 1 to ISO 8655‑7:2022, titled Piston-operated volumetric apparatus - Part 7: Alternative measurement procedures for the determination of volume. Published December 2024 and adopted by CEN members, this amendment modifies the original Part 7 text by removing specific paragraphs and clauses (notably parts of clauses 8.2, 8.3, A.1, A.2, B.1 and B.2). The document is aimed at users of piston-operated volumetric apparatus and those responsible for volume determination, calibration and conformity assessment in laboratory settings.
Key Topics
- Scope: Alternative measurement procedures for the determination of volume in piston-operated volumetric apparatus (ISO 8655-7 subject area).
- Amendment content: Formal changes include deletion of specified paragraphs/clauses in the published Part 7; the amendment has been adopted by CEN without modification.
- Standards governance: Prepared by ISO/TC 48 (Laboratory equipment) in collaboration with CEN/TC 332; national implementation was required by June 2025 for CEN members.
- Language and availability: Officially published in English, French and German; translations by national bodies carry equivalent status.
- Regulatory considerations: The European foreword highlights patent‑right awareness and conformity with CEN/CENELEC internal regulations.
Applications
- Calibration and testing laboratories: Use the alternative measurement procedures for accurate volume determination and routine verification of piston-operated devices (for example, pipettes and dispensers commonly covered under the ISO 8655 family).
- Manufacturers and R&D: Reference for product design validation, performance claims and documentation when demonstrating compliance with international volumetric measurement practices.
- Quality managers and compliance officers: Support for laboratory quality systems, traceability and conformity assessment related to volumetric apparatus.
- National standards bodies and conformity assessment bodies: Guidance on adopting the amendment into national standards and ensuring harmonized implementation across CEN member states.
Related Standards
- ISO 8655 series (piston-operated volumetric apparatus) - Part 7 is one part of this series; users should consult other parts of ISO 8655 for general requirements, terminology and complementary test methods.
- CEN-CENELEC implementation rules and national equivalents where applicable.
This amendment is relevant for anyone involved in pipette calibration, volume determination, laboratory equipment standardization, or conformity with EN ISO 8655-7:2022/A1:2024. For full technical detail and exact deleted text, consult the official published amendment from ISO or your national standards body.
