Short answer: A Category 3 test is a three-year periodic test that ASME A17.1 applies to certain hydraulic elevators, such as those with cylinders that are not exposed for inspection. Your elevator company performs the test and an independent inspector witnesses it. IEI tracks which units are due and pairs the test with your annual inspection.
Keeping test cycles straight
Buildings with a mix of traction and hydraulic elevators can have annual, three-year and five-year tests coming due in different years. We keep a per-unit test calendar so nothing is missed and tests are combined whenever possible.
Frequently asked questions
How do I know if my hydraulic elevator needs a Category 3 test?
Your prior inspection reports and test tags show the test history for each unit. Send us your last report and we will confirm which tests are due and when.