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Åv3rev 12026-03-17NIST Guide for the Use of the International System of Units (SI). NIST Special Publication 811, 2008 Edition. NIST (National Institute of Standards and Technology), Gaithersburg, MD.

angstrom

0112/2///62720#UAA023

[deprecated] 0,000 000 000 1-fold of the SI base unit metre

unit

Version history4#

  1. Current rev 01
    17 Mar 2026 · 11:18 UTC by BATCH 00000924
    View on cdd.iec.ch ↗
  2. superseded rev 01
    07 Nov 2023 · 12:19 UTC by BATCH 00001255
    ↓ Version JSON
    View on cdd.iec.ch ↗
  3. superseded rev 02
    07 Nov 2023 · 12:19 UTC by BATCH 00001209
    ↓ Version JSON
    View on cdd.iec.ch ↗
  4. superseded rev 01
    07 Nov 2023 · 12:19 UTC by BATCH 00000858
    ↓ Version JSON
    View on cdd.iec.ch ↗

IEC CDD records every published revision of each entity — version number, status, timestamp, and the change request that introduced it. OpenCDD captures the full chain of custody from cdd.iec.ch; the entry marked Current is the one rendered on this page.

Metadata#

Note
According to DIN 1301-3, this unit angstrom is no longer permitted.
Source document
NIST Guide for the Use of the International System of Units (SI). NIST Special Publication 811, 2008 Edition. NIST (National Institute of Standards and Technology), Gaithersburg, MD.
Version
3
Revision
1
Status
Standard
Publisher
IEC
Published in
IEC 62720
Responsible committee
IEC/SC 3D
Change request
C00192
Dates
  • Current version: 2026-03-17
  • Current revision: 2026-03-17