NABL Accredited · CC-2480 · Est. 2004 · Gujarat's Trusted Calibration Lab
NABL-accredited calibration for glass burettes Class A & B. 1 mL–100 mL. ISO 385 gravimetric method. Pharma GMP & titration labs. All Gujarat.
1 mL – 100 mL
Range
ISO 4787 Gravimetric
Method
ISO 385
Standard
ISO 385 / ISO 4787
Burette Calibration — Gravimetric Method
NABL Accredited
CC-2480
— WHAT IS BURETTE CALIBRATION —
Think of a quality lab that relies on a burette 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.
Burette 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 —
ISO 385 Class A / B · Micro / Standard / Automatic · 1–100 mL · Gravimetric · NABL CC-2480
Glass burettes Class A and B for volumetric titration in analytical chemistry.
Automatic burettes with self-refilling mechanism for rapid titration.
Digital electronic burettes with step-dispensing for precise volume delivery.
Micro burettes for small-volume titration with high precision.
Piston burettes with motor-driven piston for precise volume dispensing.
Semi-automatic burettes combining manual and automatic filling capabilities.
— OUR PROCESS —
Burette and ultra-pure water (ISO 3696 Grade 1) stabilised at 20 ± 0.5°C for 30 minutes in temperature-controlled calibration lab.
Burette inspected for chips, cracks, and scale legibility. Stopcock sealing tested by pressurising with water. Any leakage noted as a defect.
Water dispensed from each volume setpoint (e.g., 0 mL, 10 mL, 25 mL, 40 mL, 50 mL) into tared vessel on NABL analytical balance. Volume calculated from dispensed mass × Z-factor at calibration temperature.
Minimum 3 dispenses at each setpoint. Mean volume, standard deviation, and systematic error computed per ISO 4787.
Mean error at each setpoint compared to ISO 385 Class A or Class B maximum permissible error for the stated capacity.
NABL CC-2480 certificate reporting nominal volume, mean dispensed volume, error, expanded uncertainty (k=2), calibration temperature, and ISO 385 class for each calibration point.
— STANDARDS & COMPLIANCE —
ISO 385
Burettes for Laboratory Use
ISO 4787
Volumetric Glassware Calibration
ASTM E287
Standard Specification for Burettes
ISO/IEC 17025
NABL Accreditation Standard
Prism holds NABL CC-2480 under ISO/IEC 17025:2017. Burette calibration certificates accepted by pharma GMP (21 CFR Part 211 / EU GMP), ISO 15189 medical labs, ISO 9001, and food & water analysis 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. 1-day turnaround for all burette types.
Why Choose Prism
Since 2004, every NABL burette certificate from Prism has been accepted by pharma GMP, ISO 15189, and ISO 9001 auditors — no rejections.
— FAQ —
Get In Touch
Share the volume, class, and quantity. We respond within 2 business hours.
— FROM OUR BLOG —
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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.