SF Prep Notes

World Metrology Day 2025 marks 150 years of the Metre Convention; India authorised to issue OIML certificates

The Department of Consumer Affairs marked World Metrology Day on 20 May 2025, the 150th anniversary of the Metre Convention signed in Paris on 20 May 1875, and announced that India has become the 13th country authorised to issue OIML certificates.

Summary

The Department of Consumer Affairs commemorated World Metrology Day on 20 May 2025, marking the 150th anniversary of the Metre Convention signed in Paris on 20 May 1875. Union Minister Pralhad Joshi announced that India has become the 13th country in the world authorised to issue certificates of the International Organization of Legal Metrology (OIML). He also referred to 1 mg accuracy being mandated for gold trade and the 'One Nation, One Time' initiative under the Draft IST Rules, 2025, part of the Time Dissemination Project.

Key facts

Date
20 May 2025, World Metrology Day
Anniversary
150 years of Metre Convention (Paris, 20 May 1875)
OIML
India 13th country authorised to issue OIML certificates
Gold trade
1 mg accuracy mandated
Time
'One Nation, One Time' under Draft IST Rules, 2025

Practice MCQs 2 questions

Q1 Advanced

World Metrology Day 2025 marked the 150th anniversary of the Metre Convention. Where was the Metre Convention signed?

Show answer

Correct answer: C — Paris

The Metre Convention was signed in Paris on 20 May 1875.

Q2 Advanced

As announced on World Metrology Day 2025, India has become which country in the world to be authorised to issue OIML certificates?

Show answer

Correct answer: A — 13th

India became the 13th country authorised to issue OIML (International Organization of Legal Metrology) certificates.

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