CSIR-NPL opens National Environmental Standard Laboratory
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What happened
- CSIR-NPL inaugurated the world’s second National Environmental Standard Laboratory and the world’s fifth National Primary Standard Facility for Solar Cell Calibration [PIB].
Background
- NPL marked its 80th Foundation Day; the minister recalled that for decades half the country set its watches by NPL’s atomic clock [PIB].
Why it matters
- Pollution monitors and solar cells are only as reliable as their calibration. This is quiet but important infrastructure.
How to use this in Mains
- As per PIB (2026-01-05): CSIR-NPL inaugurated the world's second National Environmental Standard Laboratory and the world's fifth National Primary Standard Facility for Solar Cell Calibration.
- Pollution monitors and solar cells are only as reliable as their calibration. This is quiet but important infrastructure.
Quotable data pointCSIR-NPL inaugurated the world's second National Environmental Standard Laboratory and the world's fifth National Primary Standard Facility for Solar Cell Calibration.
PIB: CSIR-NPL new facilities, 5 Jan 2026
Exam angle
UPSC
Prelims: CSIR-NPL role.
Practice MCQs
Original practice questions (not PYQs).
Practice · UPSC
The National Environmental Standard Laboratory at CSIR-NPL is the world's
Answer (b) & explanation
PIB.
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Official source: PIB: CSIR-NPL new facilities, 5 Jan 2026
facts from cited sources only; faculty review pending