ISO 25980:2014 pdf free
ISO 25980:2014 pdf free.Health and safety in welding and allied processes – Transparent welding curtains, strips and screens for arc welding processes
The following apparatus is required.
a) Bench stand with an attached horizontal clamp to hold sheet material 100±6 mm wide evenly in its jaws, and allowing the material to hang down freely. The stand shall have a metallic hook of circular cross-section of about 6 mm diameter to attach the sheet material by an eyelet. The stand shall allow to hang a sample freely by at least 600 mm.
b) Minimum weight of 7 kg attached to a metallic hook of circular cross-section of about 6 mm diameter.
c) Clamp as in item a) but not attached to the stand, with a hole allowing to hang the weight from the clamp using the attached hook as in item b).
a) Specimen 1: The dimensions of the test specimen shall be 100±6 mm along the side containing the eyelet under test (if any) and parallel to the seam under test (if any). The other dimension is not critical and should be between 150 mm and 200 mm. If the sample has no eyelet it should be provided with a punched hole with a diameter of 10 mm±1 mm and 25 mm±1 mm short of the sides.
b) Specimen 2: The dimensions of the test specimen shall be between 200 mm and 350 mm along the side containing two eyelets under test (if any), the eyelets should be 25 mm±1 mm short of the cutting edge, and parallel to the seam under test (if any). The other dimension is not critical and should be between 100 mm and 200 mm measured from the underside of the seam. If the sample has no eyelets it should be provided with two punched holes with a diameter of 10 mm±1 mm and 25 mm±1 mm short of three sides.
c) Specimen 3: The dimension of the test specimen shall be 350 mm long and 100 mm wide, the sample should have no seams or eyelets.ISO 25980 pdf free download.
