Question about RT-1 VS RT-2 for thickness not reaches UW-11 a(2)
Question about RT-1 VS RT-2 for thickness not reaches UW-11 a(2)
(OP)
I am reviewing an air receiver documents.
As the vessle thickness is less than what stated in UW-11 (a). And it is not for leather service or a boiler.
If the vendor specify that the vessel RT is per UW-11 (a), it is supposed to be same as RT per UW-11 (a )(5), right?
Because I think for this vessel, if it is per UW-11 (a), it means:
To check every clause of UW-11 (a), and it will be
UW-11 (a )(1), Not applicatable
UW-11 (a )(2), Not applicatable
UW-11 (a )(3), Not applicatable
UW-11 (a )(4), Not applicatable
UW-11 (a )(5), applicatable
UW-11 (a )(6), Not applicatable
....
For that reason, should it be marked as RT-1 or RT-2?
Thanks
As the vessle thickness is less than what stated in UW-11 (a). And it is not for leather service or a boiler.
If the vendor specify that the vessel RT is per UW-11 (a), it is supposed to be same as RT per UW-11 (a )(5), right?
Because I think for this vessel, if it is per UW-11 (a), it means:
To check every clause of UW-11 (a), and it will be
UW-11 (a )(1), Not applicatable
UW-11 (a )(2), Not applicatable
UW-11 (a )(3), Not applicatable
UW-11 (a )(4), Not applicatable
UW-11 (a )(5), applicatable
UW-11 (a )(6), Not applicatable
....
For that reason, should it be marked as RT-1 or RT-2?
Thanks
3 years industry experience;
Oil & Gas industry in Canada.





RE: Question about RT-1 VS RT-2 for thickness not reaches UW-11 a(2)
The foregoing is maybe a little imprecise, but I don't intend to type out the whole Code book here:)
Study the relevant sections, you'll get the idea.
Regards,
Mike
RE: Question about RT-1 VS RT-2 for thickness not reaches UW-11 a(2)
Currently I think the idea is it is mandatory for full RT if the thickness>ie. 38. But if it is thinner, you still can do full RT and mark it RT-1.
3 years industry experience;
Oil & Gas industry in Canada.
RE: Question about RT-1 VS RT-2 for thickness not reaches UW-11 a(2)
And you can, say, shoot long seams, spot round seams, use E = 1 and stamp RT-2.
Regards,
Mike
RE: Question about RT-1 VS RT-2 for thickness not reaches UW-11 a(2)
OR the requirements of the User/Purchaser.
RE: Question about RT-1 VS RT-2 for thickness not reaches UW-11 a(2)