Cleaningconnectors; Periodically Check For Alcohol Contamination; General Cleaning Procedures - HP 85062A Operating And Service Manual

If you must use a solvent, use only isopropyl alcohol. Use the least amount of alcohol possible, and avoid
wetting any plastic parts in the connectors.
5. w. Inspect the connector again under a magnifyin, o
residues remain.
Preparation For Use - Gaging and Making Connections 4-3
HP 85062A