NABL Accredited · CC-2480 · Est. 2004 · Gujarat's Trusted Calibration Lab
NABL-accredited calibration for concrete cube and cement CTMs from 50 kN to 5000 kN. IS 14858 / ISO 7500-1 traceable. Accepted by BIS, NABL civil labs, and IS/QCI auditors.
±1% FS
Accuracy
50–5000 kN
Range
IS 14858
Standard
IS 14858
CTM Calibration Standard
NABL Accredited
CC-2480
— WHAT IS COMPRESSION TESTING MACHINE CALIBRATION —
Think of a quality lab that relies on a compression testing machine 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.
Compression Testing Machine 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 —
Concrete / Cement / Rock · All makes (ELE, Aimil, TUF, Humboldt) · IS 14858 · NABL accredited
Concrete compression testers for cube and cylinder compressive strength testing.
Universal compression testing machines for construction material quality control.
Servo-hydraulic CTMs for high-accuracy material compression testing.
Digital compression testers with digital readout for field and lab use.
— OUR PROCESS —
Machine platens, load cell, hydraulic/servo system, and load indicator inspected. Platen flatness checked.
Certified force transfer standard applied at 20%, 40%, 60%, 80%, and 100% of rated capacity in compression mode.
Compression force measured in ascending and descending order. Repeatability at each point verified per IS 14858.
Upper and lower platen parallelism verified. Ball seating mechanism checked for free movement under load.
Post-adjustment readings at 5 load levels. Error, repeatability, and return-to-zero documented per IS 14858.
NABL CC-2480 certificate with force data, errors, machine class, uncertainty (k=2), IS 14858 / ISO 7500-1 traceability.
— STANDARDS & COMPLIANCE —
IS 14858
CTM Verification for Concrete
ISO 7500-1
Uniaxial Testing Machine Verification
IS 516
Methods of Tests for Concrete
ISO/IEC 17025
NABL Accreditation Standard
Prism holds NABL CC-2480 under ISO/IEC 17025:2017. CTM calibration certificates accepted by NABL civil labs, BIS-licensed labs, and all IS/QCI civil quality audit 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 —
Engineers carry certified force standards to your concrete or cement lab. Onsite CTM calibration with no machine downtime.
Why Choose Prism
Since 2004, every NABL CTM certificate issued by Prism has been accepted by BIS, NABL civil labs, and IS quality audit bodies — no rejections.
— FAQ —
Get In Touch
Tell us the machine make/model, capacity (kN), application (concrete/cement/rock), and quantity. We respond within 2 business hours.
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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 or onsite conditions falling outside our active NABL scope are processed with standard metrological traceability to NPL/BIPM national standards.