Vessel & Tank Inspection

Pressure test certification — documented & defensible.

Documented certification of completed hydrostatic and pneumatic pressure tests for vessels, piping and equipment, with traceable records to ASME, API and PED.

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Live GCS · Oman

Service overview

Test records that survive audit.

A test is only as good as its record. GCS reviews test data, confirms calibration traceability and acceptance, then issues a pressure-test certificate and compiles the data book so your equipment is fully documented for handover and audit.

Scope of work

What we cover.

The complete range of activities included in this service line.

Test Record Review

Charts, logs and procedure compliance

Calibration Traceability

Instrument certificates verified

Acceptance Verification

Results checked against criteria

Certificate Issuance

Pressure-test certificate produced

Data-Book Compilation

Records collated into the MRB

AI / Client Sign-off

Authorised Inspector endorsement

Features & benefits

Why operators choose GCS.

Independent

Third-party reporting recognised by EPC and O&G majors in Oman.

Accredited

LEEA Full Member, ISO 17020 and ISO 17025 accredited delivery.

Fast mobilisation

Typically within 2 working days across Muscat, Sohar and Duqm.

Traceable records

Photographic reports and certificates issued within 5 working days.

Industry applications

Where this service is deployed.

Pressure Test Certification supports asset integrity and statutory compliance across Oman’s heavy industry.

Oil & GasPetrochemicalRefiningPower GenerationWater & DesalinationFertiliserEPC ContractorsStorage Terminals

Standards & compliance

Frameworks we work to.

Every report references the applicable code so your QA, client and insurer can audit decisions back to source.

ASME VIIIAPI 510API 570ASME B31.3ISO 17020

Service process

How the job runs.

A repeatable, auditable sequence from enquiry to certificate.

Stage 01

Procedure review

Test procedure, calibration certificates and acceptance criteria agreed before start.

Stage 02

Set-up & isolation

Rig, gauges and safety isolations verified; exclusion zone established.

Stage 03

Test execution

Controlled pressurisation or loading to the specified value with hold period.

Stage 04

Witness & record

Readings logged at each hold point; pass/fail assessed against criteria.

Stage 05

Certify

Witness certificate and data record issued within 5 working days.

Equipment & technology

Tools of the trade.

Calibrated, traceable instruments operated by qualified technicians — every tool carries a current calibration certificate.

Hydraulic test pumpsCalibrated load cellsDigital pressure loggersProof-load test bedsMaster shackles & linksDead-weight testers

Frequently asked

Questions our clients ask most often.

What does a pressure test certificate contain?+

Equipment ID, test medium, test pressure and duration, hold results, gauge calibration references, acceptance criteria, the witnessing inspector and the governing code clause — everything needed for the manufacturing record book and audit.

What certification do you issue?+

A formal report with photographs, defect lists and recommendations, plus a Certificate of Conformity citing the specific clause references. Hard-copy and electronic certificates are available, and records are retained for audit.

Can you certify a test you did not witness?+

We can review and certify a completed test only where the records, calibration traceability and procedure compliance are sufficient. Where they are not, we recommend re-testing under witness. Witnessed certification carries the strongest assurance.

How quickly can GCS mobilise pressure test certification in Oman?+

For routine work in Muscat, Sohar or Duqm, mobilisation is typically within 2 working days. Emergency and post-incident jobs can be mobilised same-day, with reports issued within 5 working days.

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