Edition History (5 Editions)

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2019

CSA/ANSI NGV 2:19

Withdrawn

2016

CSA/ANSI NGV 2-2016

Withdrawn

2007

ANSI NGV 2-2007

Withdrawn

2000

ANSI/CSA NGV 2-2000

Withdrawn

1998

ANSI/IAS NGV 2-1998

Withdrawn