NABL Accredited · CC-2480 · Est. 2004 · Gujarat's Trusted Calibration Lab
NABL-accredited calibration for Gerber-type milk, cream, cheese, and ice cream butyroometers. IS 1479 / ISO 488. FSSAI accepted. All Gujarat dairy plants.
0–80% fat
Range
Gerber / Van Gulik
Type
IS 1479 / ISO 488
Standard
IS 1479 / ISO 488
Gerber Fat Test Butyrometer — FSSAI Accepted
NABL Accredited
CC-2480
— WHAT IS BUTYROMETER CALIBRATION —
Think of a quality lab that relies on a butyrometer 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.
Butyrometer 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 —
Milk / Cream / Cheese / Ice Cream / Khoa · IS 1479 · ISO 488 · FSSAI · NABL CC-2480
Gerber milk butyrometers for fat content determination in whole milk.
Cream butyrometers for measuring fat percentage in cream products.
Baby food butyrometers for fat analysis in infant formula and baby foods.
Skim milk butyrometers for measuring low fat content in skimmed milk.
Ice cream butyrometers for fat percentage determination in frozen dairy products.
Cheese butyrometers for fat content measurement in cheese production.
— OUR PROCESS —
Butyrometer inspected for stem cracks, plug condition, scale legibility, and tip damage. Scale graduation and reference marks checked per IS 1479.
Nominal scale positions identified (e.g., 0%, 2%, 4%, 6%, 8% for milk type). Reference fat-equivalent gravimetric values assigned to each calibration point.
Butyrometer tube filled with reference material of certified fat equivalent. Volume of fat column formed corresponds to calibration reference point. 3–5 readings at each setpoint.
Indicated reading compared to certified fat-equivalent value at each calibration setpoint. Systematic error and standard deviation computed.
Expanded uncertainty (k=2) per GUM. Contributions: reference fat standard uncertainty, scale reading resolution, repeatability, and temperature effects.
NABL CC-2480 certificate reporting nominal fat %, measured value, error, expanded uncertainty (k=2), IS 1479 / ISO 488 traceability, and calibration date.
— STANDARDS & COMPLIANCE —
IS 1479
Methods of Test for Milk (Fat)
ISO 488
Milk — Gerber Butyrometers
FSSAI 2011
Food Safety Standards (India)
ISO/IEC 17025
NABL Accreditation Standard
Prism holds NABL CC-2480 under ISO/IEC 17025:2017. Butyrometer calibration certificates accepted by FSSAI, Gujarat GCMMF / Amul dairy auditors, ISO 22000, ISO 9001, and state dairy QC inspectors.
— 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. 1-day turnaround for all butyrometer types.
Why Choose Prism
Prism is Gujarat's most-trusted NABL lab for dairy instrument calibration. Butyrometer certificates accepted by FSSAI and Amul cooperative auditors since 2004.
— FAQ —
Get In Touch
Share the type (milk/cream/cheese), scale, 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 falling outside our active NABL scope are processed with standard metrological traceability to NPL/BIPM national standards.