- List
- NSG – Nuclear-related dual-use equipment, materials, software and related technology (Part 2) – INFCIRC/254/Rev.13/Part 2
a. Designed for operation at internal temperatures in the range of 15 K (-258 ºC) to 35 K (-238 ºC);
b. Designed for operation at internal pressures in the range of 0.1 MPa to 1 MPa;
c. Constructed of either:
1. Austenitic stainless steel; or
2. Equivalent materials which are both cryogenic and hydrogen (H₂)-compatible between 15 K (-258 ºC) and 35 K (-238 ºC); and
d. With internal diameters of 30 cm or greater and ‘effective lengths’ of 4 m or greater.
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NSG Part 2 Guidelines – INFCIRC/254/Rev.13/Part 2
Technical Notes 1: The term ‘effective length’ means the active height of packing material in a packed-type column, or the active height of internal contactor plates in a plate-type column.
2: Equivalent materials could include, but are not limited to the following materials:
a. aluminium;
b. aluminium alloys;
c. copper alloy;
d. nickel alloys; and
e. titanium alloys.
b. Designed for operation at internal pressures in the range of 0.1 MPa to 1 MPa;
c. Constructed of either:
1. Austenitic stainless steel; or
2. Equivalent materials which are both cryogenic and hydrogen (H₂)-compatible between 15 K (-258 ºC) and 35 K (-238 ºC); and
d. With internal diameters of 30 cm or greater and ‘effective lengths’ of 4 m or greater.
4-1
NSG Part 2 Guidelines – INFCIRC/254/Rev.13/Part 2
Technical Notes 1: The term ‘effective length’ means the active height of packing material in a packed-type column, or the active height of internal contactor plates in a plate-type column.
2: Equivalent materials could include, but are not limited to the following materials:
a. aluminium;
b. aluminium alloys;
c. copper alloy;
d. nickel alloys; and
e. titanium alloys.