WE HAVE A PROJECT, WHERE WE HAVE TO DO A LONGITUDINAL SEAM WELDS IN A SPLIT-TEE, SO THE SITUATION IS IF THE PARAGRAPHA B.4.1.2 (API 1104-99) APPLIES IN ORDER TO DO LONGITUDINAL SEAM WELD IN THE SPLIT-TEE, BESIDES WE WANT TO KNOW IF WE CAN WELD THIS LONGITUDINAL JOINT WITH OR WITHOUT BACK-UP STRIP AND IF IS NECESSARY TO REMOVE THIS BACK-UP STRIP.
WE APPRECIATE YOUR HELP, THANKS