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.