- List
- NSG – Trigger List (Part 1) – INFCIRC/254/Rev.15/Part 1 (21 April 2026)
Zirconium metal tubes or zirconium alloy tubes (or assemblies of tubes) especially designed or prepared for use as fuel cladding in a reactor as defined in paragraph 1.1.
above, and in quantities exceeding 10 kg.
N.B.: For zirconium pressure tubes see 1.5. For calandria tubes see 1.8.
EXPLANATORY NOTE
Zirconium metal tubes or zirconium alloy tubes for use in a nuclear reactor consist of zirconium in which the relation of hafnium to zirconium is typically less than 1:500 parts by weight.
above, and in quantities exceeding 10 kg.
N.B.: For zirconium pressure tubes see 1.5. For calandria tubes see 1.8.
EXPLANATORY NOTE
Zirconium metal tubes or zirconium alloy tubes for use in a nuclear reactor consist of zirconium in which the relation of hafnium to zirconium is typically less than 1:500 parts by weight.