Above ambient temperature vessel conditions
5. A hazardous substance shall only be present at above its boiling point at 1 bar absolute in a vessel area if—
(a)it was present at above its boiling point at 1 bar absolute in a vessel in that vessel area at any time during the establishment period;
(b)the temperature at which it is present does not exceed the temperature specified in column 9 of Table C;
(c)the vessel in which it is present does not have a greater capacity than that specified in column 10 of Table C; and
(d)the pressure at which it is present does not exceed—
(i)atmospheric pressure, if the substance was not present at above atmospheric pressure at above its boiling point at 1 bar absolute in a vessel in that vessel area at any time during the establishment period; or
(ii)the pressure specified in column 11 of Table C, in any other case.