ISO 6621-4:2024
Internal combustion engines — Piston rings — Part 4: General specifications

Standard No.

ISO 6621-4:2024

Release Date

2024

Published By

International Organization for Standardization (ISO)

Latest

ISO 6621-4:2024

ISO 6621-4:2024 history

• 2024 ISO 6621-4:2024 Internal combustion engines — Piston rings — Part 4: General specifications
• 2015 ISO 6621-4:2015 Internal combustion engines - Piston rings - Part 4: General specifications
• 2003 ISO 6621-4:2003 Internal combustion engines - Piston rings - Part 4: General specifications
• 1988 ISO 6621-4:1988 Internal combustion engines; piston rings; part 4: general specifications