Free gas cylinder 10-year hydrostatic test record
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Free gas cylinder hydrostatic test record per AS 2030. Steel and composite cylinders, pressure testing, expansion measurement and condemn criteria.
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See the first part of the gas cylinder 10-year hydrostatic test record below. Download the full version above.
What is a gas cylinder 10-year hydrostatic test record?
A gas cylinder 10-year test record documents the hydrostatic pressure test (proof test) required for steel gas cylinders under AS 2030.1 at intervals not exceeding 10 years from the date of manufacture or previous test. The test involves filling the cylinder with water, pressurising it to 5/3 of the working pressure (or the test pressure stamped on the cylinder), measuring the total volumetric expansion under pressure and the permanent expansion after pressure release, and calculating the rejection ratio. A cylinder is condemned if the permanent expansion exceeds 10% of the total expansion (known as the rejection ratio).
Composite cylinders (carbon fibre or fibreglass overwrapped) have shorter retest intervals of 5 years, with a maximum service life of 15 years regardless of test results. LPG cylinders are governed by AS 2030.5 with a 10-year retest interval for steel and a condemn-at-manufacture-date-plus-lifetime approach. This template covers the complete test record including cylinder identification, pre-test visual inspection, hydrostatic test data, expansion calculations, pass/condemn decision and disposal documentation for failed cylinders. All testing must be performed by an approved cylinder test station holding a current approval from the relevant state or territory regulator.
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Benefits of using this gas cylinder 10-year hydrostatic test record
- Regulatory compliance: satisfies AS 2030 mandatory retest requirements, preventing continued use of cylinders past their safe service interval.
- Catastrophic failure prevention: gas cylinders operating at pressures up to 300 bar contain enormous stored energy. A failed cylinder can project fragments hundreds of metres, causing fatalities.
- Complete traceability: links the test result back to the specific cylinder via serial number, test station, operator and test date for full chain of custody.
- Condemn accountability: documents the condemn decision and subsequent destruction of failed cylinders, preventing condemned cylinders from re-entering service.
- Fleet management: builds a testing history for each cylinder in the fleet, enabling proactive scheduling of retests before cylinders reach their due date.
- Insurance and liability: provides evidence that cylinders in service have been tested within the prescribed interval, supporting insurance coverage and limiting liability.
Benefits of digitising forms in MapTrack
When you digitise gas cylinder checklists in MapTrack, you get:
- Field users can easily scan a QR code to complete a form on mobile. Unlimited users.
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- Build conditional logic (show or hide questions based on answers).
- Take pictures or attach photos. Not possible with a paper-based form.
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- Track corrective actions from finding to close-out with full audit trail.
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What to include in a gas cylinder 10-year hydrostatic test record
This gas cylinder 10-year hydrostatic test record covers 8 key areas:
- Cylinder identification: serial number, manufacturer, date of manufacture, cylinder type (steel, aluminium, composite), gas service, working pressure, test pressure, water capacity.
- Test station details: approved test station name, approval number, address, testing officer name and qualifications.
- Pre-test visual inspection: external surface condition, neck threads, valve thread condition, heat damage evidence, corrosion assessment, dents/gouges, stamp legibility.
- Hydrostatic test data: test pressure applied (bar or kPa), duration held under pressure, total expansion (mL), permanent expansion (mL), rejection ratio calculation.
- Pass/condemn decision: pass (rejection ratio less than 10%), condemn (rejection ratio 10% or greater, or visual defects), with clear outcome recorded.
- Post-test actions for passed cylinders: date of next retest stamped, test station stamp applied, cylinder returned to service.
- Condemn and disposal record for failed cylinders: method of rendering unserviceable (crushing, drilling, cutting), witness signature, disposal date.
- Certificate number and date of issue.
How to use this gas cylinder 10-year hydrostatic test record
- Receive the cylinder and perform a thorough pre-test visual inspection.: Record the cylinder serial number, manufacturer, date of manufacture, gas service, working pressure and test pressure from the cylinder stamp. Visually inspect the external surface for corrosion, dents, gouges, heat damage (discolouration or distortion), fire damage and general condition. Inspect neck threads and valve threads for damage. Condemn any cylinder with visual defects that compromise structural integrity without proceeding to hydrostatic test.
- Prepare the cylinder for hydrostatic testing by filling with water and connecting to the test apparatus.: Remove the valve and internal components. Fill the cylinder completely with water, ensuring all air is expelled. Connect the cylinder to the hydrostatic test apparatus (water jacket method or direct expansion method as appropriate). Verify the test equipment calibration is current and the pressure gauge accuracy meets AS 2030 requirements. Record the ambient temperature.
- Apply the test pressure, hold for the required duration and record expansion measurements.: Pressurise the cylinder to the test pressure stamped on the cylinder (typically 5/3 of working pressure for steel cylinders). Hold at test pressure for a minimum of 30 seconds (or as specified by AS 2030). Record the total volumetric expansion. Release the pressure and allow the cylinder to stabilise. Record the permanent expansion (residual expansion that does not recover).
- Calculate the rejection ratio and determine the pass or condemn outcome.: Calculate the rejection ratio as permanent expansion divided by total expansion, expressed as a percentage. If the rejection ratio is less than 10%, the cylinder passes. If the rejection ratio equals or exceeds 10%, the cylinder is condemned. Also condemn any cylinder showing visible distortion, leakage or abnormal behaviour during the test.
- Stamp passed cylinders with the retest date and destroy condemned cylinders.: For passed cylinders, stamp the test date and test station identification onto the cylinder shoulder in the designated stamping area. Refit the valve and return to service. For condemned cylinders, render them permanently unserviceable by crushing, drilling a hole through the shoulder, or cutting. Record the method of destruction with a witness signature. Issue the test certificate.
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Back to download formHow often should you complete this checklist?
Steel gas cylinders must be hydrostatically retested at intervals not exceeding 10 years from the date of manufacture or previous test. Composite (carbon fibre or fibreglass) cylinders require retesting every 5 years, with a maximum service life of 15 years from manufacture regardless of test results. LPG cylinders follow AS 2030.5 with a 10-year retest for steel construction. Cylinders exposed to fire, severe corrosion or mechanical damage require immediate retesting regardless of the scheduled interval. In MapTrack, lifecycle tracking against manufacture date ensures no cylinder in your fleet exceeds its maximum retest interval, with automated alerts as cylinders approach their due date and condemnation records for retired units.
Frequently asked questions
Applicable regulatory standards
This template aligns with the following regulations and standards:
- AS 2030.1 Gas cylinders - General requirements
- AS 2030.5 Gas cylinders - Filling, inspection and testing of refillable cylinders for LPG
- AS 2337 Gas cylinder test stations
- WHS Regulations 2011, Chapter 5 (registered plant - pressure equipment)
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