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  • BSI
    20/30380954 DC BS ISO 23467. Ice plug isolation of piping in nuclear power plant
    Edition: 2020
    $42.22
    / user per year

Description of 20/30380954 DC 2020

This document specifies requirements for the ice plug technique with liquid nitrogen or dry ice as refrigerant (cryogenic medium) on metal pipes of nuclear power plants. The freezing liquid can be water or water mixture (e.g. boric acid mixture).

This document specifies technical requirements of ice plug generation, formation judgment and removal, measures before, during and after ice plugging and requirements for personnel and non-destructive testing.

This document is applicable for maintenance work, modification work and test inspections work when no other locking opportunity than ice plugging is available.

The application of the ice plug isolation technique is principally not allowed on cladded pipes or pipes with internal coatings. The application for pressure test is not in the scope of this document and should be qualified separate.



Standard Number20/30380954 DC
TitleBS ISO 23467. Ice plug isolation of piping in nuclear power plant
StatusDefinitive
Publication Date2020-01-30
Identical National Standard OfISO/DIS 23467
DescriptorsIce, Pipes, Nuclear power stations, Nuclear power, Nitrogen
ICS27.120.20 Nuclear power plants. Safety
CommitteeNCE/2
PublisherBSI
Pages22

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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