Division 4.4.6

The component shall be operated through 2 per cent of the total cycles at the minimum material temperature (according to section 1.3 of Part 1) but not less than the temperature of liquid nitrogen after sufficient conditioning time at this temperature to ensure thermal stability and at the MAWP of the component. The component shall comply with sections 4.3. and 4.12. at the appropriate minimum material temperature (according to section 1.3 of Part 1) at the completion of the low temperature cycles.