Indicator resolution requirements have been updated for all lead, height, and taper gages. (API 7-2 7.4.1, 7.5.2, 7.6*) Now gages with alternate indicators may not meet the new API requirements and must be replaced. Here are the new inspection elements and their new required resolutions.
Element to Inspect
New Indicator Resolution
We highly recommend that you check your gages ASAP. To help, we’ve provided a table to help you determine the correct indicator for your gages. Please note we’ve provided two model numbers for the indicators in some instances as the models have changed over the years, but either is compliant. Most of our indicators have the model number on the indicator face. Also note that we’ve shown gages which we may not manufacture any longer but are still in the field.