Pennsylvania Pressure Gauge Calibration · Updated 2026-11-06

Pressure Gauge Calibration Places

Pressure gauge calibration has a separate page only where a public document states a fact about the instrument.

• Philadelphia

  Philadelphia Water Department form 79-770 is the city’s backflow test record, and section II of that form is the test-instrument calibration block.

• Pittsburgh

  Pittsburgh Water requires a calibration certificate for each differential pressure gauge when a tester opens a backflow portal account.

• Lancaster

  The City of Lancaster manual says backflow assembly test kits are calibrated on a yearly basis, and the calibration results are submitted to the City.

• Bethlehem

  The City of Bethlehem Water Bureau test record has a test-instrument calibration block, and the original form goes to 10 East Church Street.

• Harrisburg

  The Pennsylvania Standards Laboratory at 2221 Forster Street in Harrisburg lists force gauges, and that list does not name a pressure gauge.

A Pennsylvania facility that is not on this list can still send a request from the check job form. Related: the rule.