Final answer:
The statement that GTAW electrodes are classified under CSA Standard W48 using CAN/ISO 14341 designations is false because this standard does not apply to GTAW electrodes but to SMAW electrodes instead.
Step-by-step explanation:
The statement that electrodes used for GTAW (Gas Tungsten Arc Welding) are classified under CSA Standard W48 using the designations in CAN/ISO 14341 is false. The correct classification for electrodes and filler materials used in welding is based on standards that are specific to the welding process and the type of material.
The CSA Standard W48 provides specifications for welding electrodes and filler metals, but it is specifically tailored to covered welding electrodes for the shielded metal arc welding (SMAW) process and does not use the CAN/ISO 14341 designation, which is for wire electrodes and weld deposits for gas shielded metal arc welding of non alloy and fine grain steels.
GTAW electrodes are commonly classified by the American Welding Society (AWS) and use a different nomenclature, such as AWS A5.18 for solid carbon steel electrodes and AWS A5.36 for carbon and low-alloy flux cored electrodes.