ISO 4927:1978 PDF
Road vehicles — Elastomeric boots for drum type hydraulic brake wheel cylinders using a non-petroleum base hydraulic brake fluid (Service temperature 120 degrees C maximum)
Road vehicles — Elastomeric boots for drum type hydraulic brake wheel cylinders using a non-petroleum base hydraulic brake fluid (Service temperature 120 degrees C maximum)
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 4
- Publication date:
- March 1, 1978
- Edition:
- ISO IS 4927 edition 1 version 1
- ICS:
- 43.040.40
Specifies performance tests for moulded rubber boots used at end closures on drum type brake cylinders. These boots prevent the entrance of dirt and moisture which could cause corrosion and otherwise impair wheel brake operation. Applies to boots of both plain and reinforcement insert types. Requirements relating to chemical composition, tensile strength or elongation at break of the rubber compound are not included.
Technical details
- Technical committee
- ISO/TC 22 - Road vehicles
- SKU
- ISO 4927:1978


