NABL Accredited · CC-2480 · Est. 2004 · Gujarat's Trusted Calibration Lab
NABL-accredited calibration for density, API gravity, Brix, Baumé, and alcohol hydrometers. ASTM E100 / IS 3104 thermostat method. All Gujarat.
0.600–2.000 g/mL
Range
ASTM E100
Method
Density / API / Brix / Baumé
Types
ASTM E100 / IS 3104
Hydrometer Calibration — Thermostat Method
NABL Accredited
CC-2480
— WHAT IS HYDROMETER CALIBRATION —
Think of a quality lab that relies on a hydrometer 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.
Hydrometer 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 —
Density / API / Brix / Baumé / Alcohol / Battery · ASTM E100 · IS 3104 · NABL CC-2480
Alcohol hydrometers for measuring ethanol content in spirits and beverages.
Acid hydrometers for measuring specific gravity of acid solutions.
Battery electrolyte hydrometers for checking lead-acid battery condition.
Petroleum hydrometers for measuring density and API gravity of petroleum products.
Brix hydrometers for measuring sugar content in juice, wine, and syrup.
Salinometer hydrometers for measuring salt concentration in brine solutions.
— OUR PROCESS —
Hydrometer and reference density liquids stabilised at 20 ± 0.1°C in thermostatted bath for 30 minutes before measurement.
Hydrometer inspected for cracks, inclusions, paper scale legibility, and stem damage. Reference point (20°C) verified.
Hydrometer immersed in thermostatted reference liquid of certified density. Hydrometer reading recorded at the bottom of the meniscus. 3–5 readings at each setpoint.
Hydrometer indication compared to certified reference density. Systematic error and standard deviation computed at each calibrated setpoint.
Expanded uncertainty (k=2) per GUM. Contributions: reference liquid uncertainty, temperature stability, meniscus reading resolution, and repeatability.
NABL CC-2480 certificate reporting nominal scale value, actual density/scale equivalent, error, expanded uncertainty (k=2), calibration temperature (20°C), and ASTM E100 / IS 3104 traceability.
— STANDARDS & COMPLIANCE —
ASTM E100
Hydrometers for Petroleum Products
IS 3104
Indian Standard — Hydrometers
ICUMSA
Saccharimeters / Brix Hydrometers
ISO/IEC 17025
NABL Accreditation Standard
Prism holds NABL CC-2480 under ISO/IEC 17025:2017. Hydrometer certificates accepted by petroleum industry QC, food & beverage labs, pharma GMP, and all ISO 9001 audit bodies across Gujarat.
— 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 most hydrometers.
Why Choose Prism
Since 2004, every NABL hydrometer certificate from Prism has been accepted by petroleum QC, food & beverage, and ISO 9001 auditors — no rejections.
— FAQ —
Get In Touch
Share the hydrometer type, scale, range, and quantity. We respond within 2 business hours.
— FROM OUR BLOG —
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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.