ISO 20421-1:2019/Amd 1:2022

FINAL
AMENDMENT ISO
DRAFT
20421-
1:2019
FDAM 1
ISO/TC 220
Cryogenic vessels — Large
Secretariat: AFNOR
transportable vacuum-insulated
Voting begins on:
2021-11-23 vessels —
Voting terminates on:
Part 1:
2022-01-18
Design, fabrication, inspection and
testing
AMENDMENT 1
Récipients cryogéniques — Récipients transportables isolés sous vide
de grande contenance —
Partie 1: Conception, fabrication, inspection et essais
AMENDEMENT 1
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO 20421-1:2019/FDAM 1:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2021

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ISO 20421-1:2019/FDAM 1:2021(E)
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ii
  © ISO 2021 – All rights reserved

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ISO 20421-1:2019/FDAM 1:2021(E)
Foreword
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electrotechnical standardization.
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different types of ISO documents should be noted. This document was drafted in accordance with the
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This document was prepared by Technical Committee ISO/TC 220, Cryogenic vessels.
A list of all parts in the ISO 20421 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
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