NABL Accredited · CC-2480 · Est. 2004 · Gujarat's Trusted Calibration Lab
NABL-accredited calibration for OIML E2–M3 and ASTM E617 reference and working weights. 1 mg – 200 kg. Pharma GMP. NPL traceable.
1 mg – 200 kg
Range
E2–M3 / ASTM E617
Classes
OIML R 111
Standard
OIML R 111 / ASTM E617
Reference & Working Standard Weights
NABL Accredited
CC-2480
— WHAT IS STANDARD WEIGHT CALIBRATION —
Think of a quality lab that relies on a standard weight for daily measurements. If it has drifted even slightly from its true value, every reading becomes unreliable — leading to defective products, failed audits, or safety risks. Regular calibration is the only way to confirm your instrument is telling the truth.
Standard Weight calibration means comparing its readings against a NABL-traceable certified reference standard at multiple test points, recording the deviations, adjusting where possible, and issuing an NABL certificate — accepted by ISO 9001, IATF 16949, and all quality auditors.
Compare readings against a NABL-traceable reference standard across the full measurement range.
Adjust or document deviations so your instrument reads within accepted tolerance.
Issue a NABL-accredited certificate (CC-2480) with full traceability documentation.
— INSTRUMENTS COVERED —
OIML E2 / F1 / F2 / M1 / M2 / M3 · ASTM E617 · 1 mg–200 kg · NABL CC-2480
Cast iron platform weights for industrial and trade weighing applications.
Stainless steel weights for corrosion resistance and laboratory use.
Individual Class E1 and E2 weights for highest-accuracy calibration.
Individual Class F and M weights for precision and commercial calibration.
Cylinder-shaped weights for compact storage and bench-top calibration.
Knob and hook-type weights for analytical balance calibration.
— OUR PROCESS —
Weight received, cleaned with lint-free cloth, and acclimatised at 20 ± 1°C for at least 30 minutes in temperature-controlled calibration room before measurement.
Each weight inspected for surface defects, corrosion, markings, and adjustment cavity condition. Fail criteria per OIML R 111 Section 6.
Weight compared against NABL-traceable reference masses of one class higher using calibrated semi-micro or analytical balance. Minimum 5 readings taken. Mean and standard deviation computed.
Computed mass error checked against OIML R 111 or ASTM E617 maximum permissible error (MPE) for the stated class and nominal value.
Expanded uncertainty (k=2) calculated per GUM. Contributions: reference standard uncertainty, balance repeatability, balance resolution, and thermal drift.
NABL CC-2480 certificate listing nominal value, conventional mass, uncertainty (k=2), OIML class, calibration date, and traceability chain to NPL/BIPM.
— STANDARDS & COMPLIANCE —
OIML R 111
Weights of Classes E1–M3
ASTM E617
Standard Weights (US / FDA)
OIML R 76
Non-Auto Weighing Instruments
ISO/IEC 17025
NABL Accreditation Standard
Prism holds NABL CC-2480 under ISO/IEC 17025:2017. Standard weight certificates are accepted by pharma GMP (21 CFR Part 211 / EU GMP), ISO 9001, IATF 16949, and all process industry QMS bodies.
— NON-NABL CALIBRATION —
For routine maintenance, bulk calibration, or internal QC checks where a full NABL certificate is not mandatory — Prism offers cost-effective non-NABL calibration using the same NABL-traceable reference standards and trained engineers.
All non-NABL work uses NABL-certified reference standards — readings are still reliable and defensible.
Without full NABL documentation, instruments return faster — ideal for urgent production schedules.
Non-NABL calibration costs less — practical for large batches or routine periodic checks.
Available at your facility or at our Vatva lab — same quality, more flexibility.
— AREAS WE SERVICE —
Lab calibration for all reference and working standard weights. 1-day turnaround.
Why Choose Prism
Every NABL standard weight certificate from Prism has been accepted by pharma GMP, ISO 9001, and IATF 16949 auditors since 2004.
— FAQ —
Get In Touch
Share the class, nominal value, and quantity. We respond within 2 business hours.
— FROM OUR BLOG —
Accurate flow meter calibration is critical for chemical, water treatment, and pharma industries in Ahmedabad. Prism Calibration Centre offers NABL-certified calibration for all flow meter types.
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Load cells are the sensing hearts of industrial weighing systems. NABL-certified load cell calibration per OIML R 60 ensures accurate weighing and compliance for trade and quality control.
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Prism Calibration Centre is Ahmedabad's NABL-certified flow meter calibration lab, delivering precise, traceable calibration for all flow meter types with 24-hour turnaround.
Read MoreNABL Accreditation Disclaimer
Calibration services are provided under NABL Certificate CC-2480 in strict accordance with our officially approved scope of accreditation (ISO/IEC 17025:2017). Parameters falling outside our active NABL scope are processed with standard metrological traceability to NPL/BIPM national standards.