Sunday, 1 November 2026
Standing Office 81 (SOVNPA 81) emblem Viet Nam NVietnam National Presiding Agency
on Countering the Proliferation of Weapons of Mass Destruction
Standing Office 81

1.5.Nuclear reactor pressure tubes

List
NSG – Trigger List (Part 1) – INFCIRC/254/Rev.15/Part 1 (21 April 2026)
Tubes which are especially designed or prepared to contain both fuel elements and the primary coolant in a reactor as defined in paragraph 1.1. above.
EXPLANATORY NOTE
Pressure tubes are parts of fuel channels designed to operate at elevated pressure, sometimes in excess of 5 MPa.