Certified Calibration & Metrology Services
ISO-traceable calibration is the process of adjusting and certifying a measuring instrument against reference standards traceable to national metrology authorities. AND Gulf provides manufacturer-certified calibration for analytical balances, industrial scales, and precision instruments across the UAE and GCC — DAC/ENAS traceable, ISO/IEC 17025 compliant, with 48-hour turnaround and on-site mobile labs available.
Published by AND Gulf Technical Team — Last updated
What Our Calibration Service Covers
Standards & Traceability
Our calibration services align strictly with recognised international and regional metrology standards — including ISO/IEC 17025 protocols, OIML guidelines, and national regulatory frameworks — guaranteeing compliance for your factory floors and testing laboratories during strict regulatory audits.
Audit-Ready Documentation
Every certification procedure comes accompanied by a comprehensive, fully compliant Certificate of Calibration. Reports explicitly map itemized linearity tolerances, repeatability performance records, and calculated uncertainty metrics ready for instant presentation to external quality managers.
Comprehensive Equipment Scope
Our certified capabilities cover extensive laboratory and factory weighing platforms, including high-precision Analytical Balances, specialized Microbalances, high-capacity Industrial Platform Scales, and precision Moisture Analyzers.
Calibration Service Specifications
| Capability | AND Gulf Standard |
|---|---|
| Turnaround time | 48 hours standard; same-day available for critical environments |
| Traceability chain | DAC / ENAS → BIPM (international) |
| Standards compliance | ISO/IEC 17025, OIML R 76, OIML R 111 |
| Service delivery | In-lab (JAFZA) + mobile on-site across UAE & GCC |
| Instrument scope | Microbalances, analytical balances, industrial platform scales, moisture analyzers (up to 3,000 kg capacity) |
| Certificate format | ISO 9001, GMP & HACCP audit-ready; includes traceability chain, uncertainty (k=2), linearity & repeatability records |
| Accreditation basis | Manufacturer-certified calibration · traceable to DAC (Dubai Accreditation Centre) & ENAS (Emirates National Accreditation System) registered reference weights |
How the calibration process works
From booking to certified document — typically completed within 48 hours.
Book your service
Contact our team by phone, email, or the form below. We confirm scope, instrument type, and whether in-lab or on-site delivery suits your schedule.
Collection or on-site visit
Drop instruments at our JAFZA facility or our mobile lab technician visits your site. No courier risk, no chain-of-custody breaks for critical equipment.
Calibration & verification
We test 5–10 measurement points across the full capacity range. Repeatability, linearity, and eccentricity are recorded against DAC/ENAS reference weights.
Certificate issued
You receive a full calibration certificate with traceability chain, uncertainty values (k=2), and technician signature — ready for ISO 9001, GMP, and HACCP audits.
Calibration requirements by industry
Different regulatory frameworks demand different calibration evidence. AND Gulf covers them all.
Pharmaceutical & Biotech
GMP-compliant documentation required for all critical weighing equipment. 21 CFR Part 11 audit trail support. Minimum annual calibration with out-of-tolerance reporting protocol.
Standards: GMP, USP ⟨41⟩, ISO/IEC 17025
Food & Beverage
HACCP plans require calibrated checkweighing and portioning equipment. UAE ESMA and Gulf Standardization Organisation (GSO) legal metrology requirements apply to trade weighing. 6-monthly calibration recommended for high-throughput lines.
Standards: HACCP, ESMA, GSO, OIML R 76
Oil, Gas & Petrochemical
Custody transfer and process control weighing require traceable calibration with low uncertainty budgets. ADNOC and Saudi Aramco vendor qualification frameworks require documented metrological traceability for all measuring equipment.
Standards: ISO/IEC 17025, OIML, API MPMS
Gold & Precious Metals
Dubai Metals and Commodities Centre (DMCC) requires legal-for-trade certification on all gold weighing equipment. Sub-milligram accuracy verification and OIML Class E2/F1 weight traceability required.
Standards: DMCC, OIML R 111 Class E2/F1
Laboratory & Research
Accredited testing laboratories require calibration certificates with expanded uncertainty statements formatted to ISO/IEC 17025. AND Gulf certificates include k=2 coverage factor and full uncertainty budget — accepted by DAC and ENAS auditors without query.
Standards: ISO/IEC 17025, DAC, ENAS
Chemical & Manufacturing
ISO 9001 quality management systems require all measuring equipment affecting product quality to be calibrated at defined intervals. AND Gulf provides calibration records formatted directly for ISO 9001 Clause 7.1.5 equipment control registers.
Standards: ISO 9001:2015 Cl. 7.1.5, OIML
What your calibration certificate includes
Every certificate is issued in English and formatted for immediate submission to quality auditors — no reformatting required.
- Certificate number & issue date — Unique reference for audit trails and equipment registers
- Instrument identification — Model, serial number, asset tag, and location of use
- Traceability chain — Reference weight lineage: DAC/ENAS → BIPM (international SI)
- Measurement points — 5–10 load points tested across full capacity range
- Repeatability & reproducibility — Standard deviation over minimum 3 repeat readings per point
- Linearity error — Deviation from ideal response across the measurement range
- Expanded uncertainty (k=2) — 95% confidence level — required by ISO/IEC 17025 auditors
- Eccentricity test — Off-centre load performance — critical for trade weighing
- Environmental conditions — Temperature and humidity at time of calibration recorded
- Technician signature — Certifying engineer name and qualification reference
Certificate of Calibration
AND Gulf FZE · JAFZA, Dubai UAE
Cert No.
CAL-2025-XXXX
| Load (g) | Indicated | Error | U (k=2) |
|---|---|---|---|
| 0 | 0.000 | 0.000 | ±0.002 |
| 50 | 50.001 | +0.001 | ±0.002 |
| 100 | 100.001 | +0.001 | ±0.002 |
| 200 | 200.002 | +0.002 | ±0.003 |
| 210 | 210.002 | +0.002 | ±0.003 |
Calibrated by
AND Gulf Technical Team
Valid until
12 months from issue
Sample certificate — actual document includes full traceability chain, repeatability data, eccentricity test, and environmental conditions.
Need calibration this week? Our team responds within 24 hours.
Calibration — Frequently Asked Questions
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What is ISO-traceable calibration?
- ISO-traceable calibration is the process of adjusting and certifying a measuring instrument against reference standards traceable — through an unbroken chain of comparisons — to a national or international measurement authority. For weighing instruments in the UAE, AND Gulf's calibration certificates link directly to DAC (Dubai Accreditation Centre) and ENAS (Emirates National Accreditation System) reference weights, satisfying ISO/IEC 17025 and OIML audit requirements without the need for a third-party laboratory visit.
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How often should precision balances be calibrated?
- ISO/IEC 17025 recommends calibration at least annually for laboratory analytical balances used in pharmaceutical, food, or chemical manufacturing. Industrial platform scales in high-use environments (more than 100 weighing cycles per day) typically require 6-monthly calibration to maintain OIML tolerance classes. Recalibration is also required after any relocation, repair, firmware update, or reading anomaly — regardless of elapsed time since the last certificate.
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What is included in a calibration certificate?
- AND Gulf's calibration certificates document: the instrument serial number, reference weight traceability chain, measurement points tested (typically 5–10 points across the capacity range), repeatability results, linearity error, expanded measurement uncertainty (k=2, 95% confidence level), and the certifying technician's signature. Every certificate is formatted for direct presentation to ISO 9001, GMP, and HACCP auditors — no reformatting required.
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Do you offer on-site calibration across the UAE and GCC?
- Yes. AND Gulf operates mobile calibration labs that perform on-site calibration at your facility across the UAE and GCC. On-site service eliminates instrument downtime from transportation, maintains the traceability chain without breaking it, and provides same-day certificates for time-sensitive audits. Standard turnaround is 48 hours; same-day service is available for critical production environments.
Ready to Schedule Your Calibration?
Contact our certified metrology team today to discuss your calibration requirements and ensure your equipment meets all regulatory standards.