Calibration & Safety Compliance
for Oil & Gas Facilities
Gujarat's most trusted NABL-accredited calibration partner for petroleum terminals, refineries, pipeline operators, and gas processing plants. OISD · PESO · ATEX · API 2350 accepted. Serving 500+ industries since 2004.
OISD · PESO Compliant
NABL CC-2480
— WHY IT MATTERS —
Why Oil & Gas Facilities Need NABL Calibration
In petroleum and gas facilities, instrument accuracy is a life-safety requirement — not just a compliance checkbox.
Hazardous Area Safety — Zero Tolerance
In oil & gas, a mis-reading pressure gauge or faulty temperature sensor in a hazardous zone can trigger catastrophic explosion or fire. OISD-113 mandates calibrated instruments as a mandatory safety control in all upstream/downstream facilities.
OISD & PESO Statutory Compliance
Oil Industry Safety Directorate (OISD) and PESO (Petroleum and Explosives Safety Organisation) regulations require calibrated instruments at all petroleum storage, pipeline, and processing facilities. Non-compliance = shutdown order.
Fiscal Metering Accuracy
Flow meters used for custody transfer and fiscal metering (product handover between parties) must be NABL calibrated. A 0.5% error in a 10,000 KL/day terminal means ₹50 lakh+ daily revenue loss or billing disputes.
Pipeline Integrity & Asset Protection
Pressure relief valves, safety valves, and differential pressure instruments must be calibrated to correct set-points. Drift can cause over-pressurization events that damage expensive pipelines, vessels, and process equipment.
API, ATEX & International Export Standards
Companies exporting petroleum products or working with international oil majors must demonstrate instrument calibration to API 2350, ATEX/IECEx, and IEC 61511 functional safety standards during technical audits.
Insurance & Legal Liability Protection
Insurance underwriters and legal counsel require documented, NABL-traceable calibration records for all safety-critical instruments. Missing records = rejected claims and personal liability for plant engineers during incident investigation.
— SCOPE OF CALIBRATION —
Instruments We Calibrate for Oil & Gas
All safety-critical and process instruments — OISD, PESO, and API compliant NABL certificates.
Pressure Instruments
Temperature Instruments
Flow & Level Instruments
— STANDARDS & COMPLIANCE —
Calibration Backed by Oil & Gas Industry Standards
Every calibration at Prism follows documented procedures aligned with OISD, PESO, API, and international oil & gas standards. NABL CC-2480 certificates accepted in all statutory inspections.
OISD-113
Oil Industry Safety Directorate — Hazardous Area
API 2350 / 2551
Petroleum Tank & Custody Transfer Standards
ATEX / IECEx
Explosive Atmosphere Equipment Standards
PESO
Petroleum & Explosives Safety Organisation
PNGRB
Petroleum & Natural Gas Regulatory Board
IEC 61511
Functional Safety — SIL Compliance
ISO/IEC 17025
NABL Accreditation Standard
ISO 9001:2015
Quality Management System
NABL Accreditation — CC-2480
Prism holds NABL CC-2480 under ISO/IEC 17025:2017 — providing NPL-traceable calibration accepted in OISD, PESO, API, and all international oil & gas statutory audits across 100+ countries under ILAC MRA.
300+
Oil & Gas Clients
200+
Instrument Types
— NON-NABL CALIBRATION —
Non-NABL Calibration Services for Oil & Gas
In addition to NABL-accredited calibration, Prism provides non-NABL calibration for instruments where formal accreditation is not required — same engineers, same traceable standards, faster turnaround.
NPL-Traceable Standards
All non-NABL calibrations use the same NPL/BIPM-traceable reference instruments — same accuracy, same engineers, without the formal accreditation documentation.
Faster Turnaround
Non-NABL calibration jobs complete faster — ideal for breakdown situations, maintenance windows, or large-batch utility instruments.
Lower Cost per Instrument
Non-NABL pricing is significantly lower — right choice for non-critical instruments, workshop gauges, and bulk maintenance calibration.
Onsite or In-Lab
Available at your Gujarat facility or at our Ahmedabad NABL lab — with or without accredited certificate as per your requirement.
— RISKS OF NON-COMPLIANCE —
What Happens Without Calibration in Oil & Gas?
The consequences of non-calibrated safety instruments in petroleum facilities are severe — financial, legal, and catastrophic.
Explosion & Fire Risk in Hazardous Zones
A mis-calibrated pressure gauge or stuck relief valve in a hazardous area can lead to over-pressurization, resulting in catastrophic explosion, fire, or gas release — with multi-crore damage and fatality risk.
OISD Inspection Failure & Plant Shutdown
OISD inspectors verify calibration records for all safety-critical instruments. Missing or expired NABL certificates result in mandatory shutdown notices and suspension of operating licenses.
Fiscal Metering Disputes & Revenue Loss
Uncalibrated custody transfer flow meters cause product quantity disagreements between buyer and seller — leading to contractual disputes, revenue loss, and terminal operation suspension.
PESO License Cancellation
PESO requires calibrated pressure instruments at licensed petroleum storage facilities. Non-compliance during PESO inspection results in licence cancellation and forced closure.
Insurance Claim Rejection After Incident
Following any fire, explosion, or environmental incident, insurers require evidence of calibrated, maintained safety instruments. Missing NABL records result in full claim rejection.
Export Contract Termination by Oil Majors
International oil companies (Shell, BP, TotalEnergies) require NABL-traceable calibration as a supplier qualification requirement. Non-compliance triggers contract suspension.
Why Choose Prism
Two Decades of Safety Compliance.
Zero Audit Failures.
Since 2004, every NABL calibration certificate issued by Prism has been accepted in OISD, PESO, and API audits — no rejections, no rework, no compliance gaps.
Onsite Coverage
Serving All
of Gujarat
NABL-certified engineers travel to your petroleum facility with portable traceable standards — no instrument removal, zero production downtime.
NABL CC-2480 · OISD · PESO · API Accepted
Need Calibration for Your Oil & Gas Facility?
Onsite · Same-day urgent · NABL certificate within 48 hours
— CLIENT TESTIMONIALS —
What Oil & Gas Clients Say About Prism
Prism calibrates all our OISD-113 critical instruments annually — pressure gauges, relief valves, thermocouples, and flow meters. Their certificates are always NABL-traceable and accepted in every OISD inspection. Zero deficiencies in 8 years.
Deepak Shah
Onsite calibration for 200+ pressure and temperature instruments across our petroleum depot. Prism engineers arrive prepared, complete all work with minimal disruption, and deliver NABL certificates within 48 hours.
Ravi Pandya
We rely on Prism for annual calibration of all our wellhead pressure transmitters and temperature sensors. NABL CC-2480 certificates, NPL-traceable, accepted in all OISD and ISO audits. Professional and reliable.
Sanjay Trivedi
Prism calibrates all our OISD-113 critical instruments annually — pressure gauges, relief valves, thermocouples, and flow meters. Their certificates are always NABL-traceable and accepted in every OISD inspection. Zero deficiencies in 8 years.
Deepak Shah
Onsite calibration for 200+ pressure and temperature instruments across our petroleum depot. Prism engineers arrive prepared, complete all work with minimal disruption, and deliver NABL certificates within 48 hours.
Ravi Pandya
We rely on Prism for annual calibration of all our wellhead pressure transmitters and temperature sensors. NABL CC-2480 certificates, NPL-traceable, accepted in all OISD and ISO audits. Professional and reliable.
Sanjay Trivedi
Prism calibrates all our OISD-113 critical instruments annually — pressure gauges, relief valves, thermocouples, and flow meters. Their certificates are always NABL-traceable and accepted in every OISD inspection. Zero deficiencies in 8 years.
Deepak Shah
Onsite calibration for 200+ pressure and temperature instruments across our petroleum depot. Prism engineers arrive prepared, complete all work with minimal disruption, and deliver NABL certificates within 48 hours.
Ravi Pandya
We rely on Prism for annual calibration of all our wellhead pressure transmitters and temperature sensors. NABL CC-2480 certificates, NPL-traceable, accepted in all OISD and ISO audits. Professional and reliable.
Sanjay Trivedi
— FAQs —
Oil & Gas Calibration — FAQs
— GET IN TOUCH —
Talk to Our Oil & Gas
Calibration Experts
Pre-OISD inspection calibration, PESO compliance, or routine annual service — tell us what you need and we'll respond within 24 hours.
- +91 98245 26444
- info@prismcalibration.com
- F-101, Rudraksh Complex 2, GIDC Vatva, Ahmedabad – 382445
- Mon – Sat · 9 AM – 7 PM