Compliance & Certification

API standard inspection — 510, 570 & 653.

Vessels, piping and storage tanks inspected to API 510, API 570 and API 653 by certified inspectors — the codes that govern fixed-equipment integrity in oil & gas.

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Service overview

Certified API inspection for fixed equipment.

API codes set the rules for in-service inspection of pressure equipment and tanks. GCS provides API 510, 570 and 653 inspection by certified inspectors, with thickness monitoring, remaining-life calculation and inspection interval setting.

Scope of work

What we cover.

The complete range of activities included in this service line.

API 510 Vessels

Pressure-vessel in-service inspection

API 570 Piping

Process-piping inspection

API 653 Tanks

Storage-tank inspection

Thickness Monitoring

CML thickness and corrosion rates

Remaining Life

Remaining-life and interval setting

Records

API-format inspection reports

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.

API Standard Inspection Services 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.

API 510API 570API 653API 579-1ASME VIII

Service process

How the job runs.

A repeatable, auditable sequence from enquiry to certificate.

Stage 01

Document review

OEM data, prior reports and service history reviewed before mobilising.

Stage 02

On-site examination

Visual, functional and dimensional checks against the checklist, fully photographed.

Stage 03

NDT / testing

Surface or volumetric NDT and functional or load testing as the code requires.

Stage 04

Findings & sentencing

Defects classified A/B/C, photographed and sentenced against the governing standard.

Stage 05

Certificate & tag

Certificate of Conformity and colour-coded tag 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.

Calibrated load cellsUT thickness gaugesMPI yokes & DPI kitsBore & throat gaugesDigital torque toolsDrone / rope access

Frequently asked

Questions our clients ask most often.

Are your inspectors API-certified?+

Yes. Our fixed-equipment inspectors hold the relevant API certifications (510, 570, 653) and carry out inspection, thickness monitoring and remaining-life assessment to the applicable code.

Do you set inspection intervals?+

Yes. Based on measured corrosion rates and remaining life, we calculate and recommend inspection intervals in line with the API code and, where applicable, risk-based inspection (API 580/581).

What certification do you issue?+

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

How quickly can GCS mobilise API standard inspection in Oman?+

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

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