How Often Should You Recalibrate Your Weights? A Guide for Labs and Traders

Using expired or uncalibrated weights can lead to serious compliance issues. Learn how often to recalibrate iron and SS 304 weights — and how Shree Shree makes it easy in Gujarat.

7/23/20251 min read

Introduction

Whether you're running a jewellery store, lab, or weighbridge, accurate weighing depends on more than just the right scale. You must also ensure that your calibration weights are regularly tested and re-certified.

But how often should you recalibrate?

Let’s break it down.

📅 General Recalibration Guidelines

  1. Legal Metrology Weights (used in trade)
    Require annual re-verification by the Weights & Measures Department.

  2. SS 304 Bullion Weights (used in labs and gold testing)
    Recommended to be recalibrated every 6–12 months, especially before NABL or BIS audits.

  3. Iron Calibration Weights (used for weighbridges/platforms)
    Typically need yearly rechecking, or more frequently in high-dust environments.

📋 Risks of Using Uncalibrated Weights

  • Weighing errors

  • Audit failures

  • Legal penalties

  • Loss of customer trust

  • Risk of scale damage

🧰 Shree Shree’s Recalibration & AMC Support

We make it easy with:

  • Annual Maintenance Contracts (AMCs)

  • Pickup and drop service for weights

  • Re-stamping from Legal Metrology Department

  • NABL-traceable calibration (on request)

  • Record-keeping assistance for audits

Best Practice: Keep a Calibration Logbook

Track:

  • Date of last verification

  • Certifying authority

  • Next due date

  • Serial numbers of weights

We help clients set this up as part of our service.