- List
- NSG – Trigger List (Part 1) – INFCIRC/254/Rev.15/Part 1 (21 April 2026)
Complete columns or towers especially designed or prepared for hydrogen isotope exchange having all of the following:
1. Packed with random or structured wet-proofed platinised catalysts;
2. Constructed of carbon steel or stainless steel;
3. Capable of operating with pressure in the range of 0.1 to 4 MPa; and
4. Capable of operating at temperatures in the range of 293 K (20°C) to 473 K (200°C).
EXPLANATORY NOTE
In heavy water production processes, primary stage catalyst columns have typical diameters greater than 0.5 m and typical heights greater than 10 m. In heavy water upgraders, a typical minimum practical diameter is 0.1 m.
1. Packed with random or structured wet-proofed platinised catalysts;
2. Constructed of carbon steel or stainless steel;
3. Capable of operating with pressure in the range of 0.1 to 4 MPa; and
4. Capable of operating at temperatures in the range of 293 K (20°C) to 473 K (200°C).
EXPLANATORY NOTE
In heavy water production processes, primary stage catalyst columns have typical diameters greater than 0.5 m and typical heights greater than 10 m. In heavy water upgraders, a typical minimum practical diameter is 0.1 m.