How to Fill Out and Submit a Hydrostatic Pressure Test Form

A hydrostatic pressure test form documents that a pressurized system, most often a fire sprinkler network, held its required test pressure without leaking. For aboveground fire sprinkler piping, the standard template is the Contractor’s Material and Test Certificate published in NFPA 13, and filling it out correctly is what stands between a finished installation and a Certificate of Occupancy. The Authority Having Jurisdiction (the fire marshal or building official reviewing your submission) will send the form back for any incomplete field, missing signature, or pressure reading that doesn’t match the standard.

Pick the Right Template Before You Start

The form you need depends on what you’re testing. NFPA 13 publishes the Contractor’s Material and Test Certificate for Aboveground Piping, which covers the majority of fire sprinkler acceptance tests. NFPA 24 has its own form for underground fire service mains. NFPA 20 publishes a separate Centrifugal Fire Pump Acceptance Test Form. For ongoing inspection and maintenance rather than initial acceptance, NFPA 25 provides its own report forms.

Your local building department or fire marshal’s office often posts a downloadable PDF on its website, sometimes with local additions. Use whichever version your AHJ requires. If they’ve published their own template, submit that one even if it looks slightly different from the standard NFPA form. Insurance carriers occasionally require a proprietary version too, so check your policy before test day.

Filling Out System Information

The top of the Contractor’s Material and Test Certificate captures project basics: property name, property address, and date. Below that, the form asks whether the installation conforms to the accepted (approved) plans and whether all equipment used is approved. If there are deviations, the form requires a written explanation. Leaving that field blank when the answer is “no” is one of the most common reasons forms come back.

The system details section is where most of the technical data goes. You’ll record:

Sprinkler data: make, model, year of manufacture, orifice size, quantity installed, and temperature rating for every sprinkler head.
Pipe and fittings: type of pipe (schedule 40 steel, CPVC, copper, and so on) and type of fittings used throughout.
Alarm valve information: type, make, model, and the maximum time the alarm device took to operate through the test connection.
Dry valve data, when applicable: make, model, serial number, water pressure, air pressure, trip point air pressure, and the time water reached the test outlet.
Drain test readings: static pressure at the gauge near the water supply test connection, and residual pressure with the test connection valve wide open.
Blank testing gaskets: the number used, their locations, and the number removed after testing.

The form also asks whether the person in charge of the building’s fire equipment has been instructed on control valve locations and system maintenance, and whether copies of the component instructions, care and maintenance instructions, and NFPA 25 have been left on the premises. These yes/no fields are easy to overlook, and an AHJ reviewer will flag any that are left blank.

One more certification lives in this section: a statement that no corrosive chemicals, sodium silicate or its derivatives, or brine were used during testing or to stop leaks. It’s a yes/no checkbox, but it carries real weight. If you used any additive at all, note it and confirm it’s an approved product.

Test Pressure and Hold Requirements

For aboveground wet sprinkler piping, the standard hydrostatic test is 200 psi held for two hours with zero loss at the reference gauge and no visible leaks.¹ The key word is zero. Not “negligible,” not “minimal.” If the gauge needle moves during those two hours, the test fails.

When the system’s normal working pressure exceeds 150 psi, the test pressure increases to 50 psi above that working pressure instead of the flat 200 psi figure.² For systems served by a fire pump, the test pressure is calculated using the pump’s churn (shutoff) pressure, excluding any pressure-limiting device. The zero-loss tolerance still applies.

On the form, record the test pressure applied, the start time, the end time, and whether any pressure loss or visible leakage was observed. Enter the identification and calibration information for the pressure gauge used. Gauges must be tested or replaced every five years and must read within 3 percent of a known accurate gauge to be considered reliable.

Before pressurizing, verify that all blank testing gaskets are installed and accounted for. Record each gasket location as you install it rather than trying to remember afterward. Leaving a gasket in place after testing blocks a sprinkler connection, so the “removed” count on the form matters.

Dry Pipe and Underground Variations

Dry pipe and double-interlock preaction systems go through two tests. The first is the same 200 psi hydrostatic test for two hours. The second is a pneumatic (air) leak test at 40 psi for 24 hours, during which the system cannot lose more than 1.5 psi.³ Both results go on the same form. If freezing conditions made a water fill impractical and only the air test was performed, note the reason on the form.

Underground fire service mains tested under NFPA 24 use similar pressure thresholds (200 psi for two hours, or 50 psi above maximum static pressure when that pressure exceeds 150 psi), but the allowable tolerance is different. The gauge reading must remain within plus or minus 5 psi over the two-hour window, and the gauge must be positioned at the lowest elevation of the system being tested.⁴ The trench must stay open between joints during the test so the inspector can visually check for leaks, though backfill between joints is placed beforehand to prevent pipe movement. Any pressure loss or visible leakage results in a failed inspection.

Signatures and Witnessing

Federal workplace safety regulations require hydrostatic testing to be performed by trained persons with suitable testing equipment and facilities.⁵ In practice, that means licensed fire sprinkler contractors. Most states require contractors to hold a NICET (National Institute for Certification in Engineering Technologies) certification in water-based systems layout, typically at Level III or higher, before they can perform and sign off on acceptance tests. Licensing requirements vary by state, so verify your jurisdiction’s rules before test day.

Many AHJs require their own representative, usually a fire inspector, to physically witness the test. When witnessing is required, the inspector typically needs to be present for the full two-hour hold and will sign the form on site at the conclusion of the test. Schedule the inspection with your fire marshal’s office at least two business days in advance, and don’t start pressurizing until the inspector arrives. Without that third-party signature, the form is an internal contractor record, not an accepted certification.

Where AHJ witnessing isn’t mandatory, the building owner’s representative or a commissioning agent may serve as the witness.² Confirm in writing who the AHJ will accept as a witness before you schedule the test.

Submitting the Form

Once the form shows a passing result and carries all required signatures, submit it to the local building department or fire marshal’s office. Some jurisdictions accept uploads through a municipal compliance portal; others still require a paper copy delivered in person or by mail. The submission triggers a review to confirm the documented results align with the approved construction plans.

Common reasons forms get sent back:

Missing contractor or witness signatures.
Blank fields in the system information section.
Pressure readings that don’t match the required test pressure.
Failure to explain deviations from approved plans.
Missing blank gasket count or removal confirmation.

Double-check every field before you submit. A rejection means another round of review and potentially another inspection visit. Most jurisdictions charge an inspection or filing fee. Fees vary widely but typically fall between $60 and $150 for a fire sprinkler hydrostatic test inspection, with more complex systems or multiple visits costing more. Failure to submit the verified form can block issuance of a Certificate of Occupancy or trigger fines for non-compliance.

When You’ll Need to Fill Out a New Form

Initial acceptance isn’t the only trigger. NFPA 13 requires a hydrostatic test for all new or modified sprinkler installations, meaning any time you add heads, extend branch lines, or reconfigure piping, the modified section must be retested and documented on a fresh form.² For standpipe systems, NFPA 25 requires a full hydrostatic retest every five years on manual and semiautomatic dry standpipe systems, including the fire department connection piping.¹

Keeping the Form After Submission

NFPA 25 draws a sharp line between acceptance records and routine maintenance records. Acceptance test records, meaning the original Contractor’s Material and Test Certificate from the initial installation along with as-built drawings and hydraulic calculations, must be kept for the life of the system.⁶ Ongoing inspection, testing, and maintenance records must be retained for one year after the next occurrence of that same type of service.⁷

Keep both a digital archive and a physical copy on the premises. Fire marshals and insurance underwriters request these records during inspections and audits, and the inability to produce them can result in citations, higher premiums, or a denied claim.

1
National Fire Sprinkler Association. Hydrostatic Testing – Changes to NFPA 25 Over the Decades
2
Construct and Commission. NFPA 13 Sprinkler Hydrostatic Testing Method With Template
3
City of Mercer Island. NFPA 13 Sprinkler System Acceptance Test
4
Lawrence-Douglas County Fire Medical. Fire Line Inspections
5
eCFR. 29 CFR 1910.157
6
National Fire Sprinkler Association. The Basics of NFPA 25 Record Keeping
7
National Fire Sprinkler Association. The Paper Trail – Documentation and Owner Retention from Codes to NFPA 25