BS EN 1598:2011 pdf download – Health and safety in welding and allied processes — Transparent welding curtains, strips and screens for arc welding processes
4.6.1 General In case of the use of eyelets the described test specifies a method for assessing the seam and eyelet strength of welding curtains, strips and screens. Specimens of materials used for welding curtains, strips and screens have a weight suspended to them and any damage is noted.
4.6.2 Test apparatus The following apparatus is required: a) Bench stand with an attached horizontal clamp to hold sheet material 100 4 6 − mm wide evenly in its jaws and allowing the material to hang down freely. The stand shall have a metallic hook of circular crosssection 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).
4.6.3 Test specimen a) Specimen 1: The dimensions of the test specimen shall be 100 4 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.
4.6.4 Test procedure The procedure shall be as follows:
a) Samples with one eyelet under test (specimen 1): Attach the specimen to the hook on the stand using the eyelet. Attach the clamp at the lower end of the specimen and apply the weight gradually to the hook of the clamp. The weight shall be freely suspended for 1 min.
b) Samples with two eyelets under test (specimen 2): Attach the specimen to the hook on the stand using one eyelet. Apply the weight gradually to the lower eyelet of the specimen using the attached hook. The weight shall be freely suspended for 1 min.
c) Samples with no eyelets under test (specimen 3): Attach the specimen to the stand by using the clamp. Attach the other clamp to the lower end of the specimen and apply the weight gradually to the hook of this clamp. The weight shall be freely suspended for 1 min.
4.6.5 Test report
Any tearing of a seam, tearing of an eyelet or removal of an eyelet shall be reported.
5 Marking
In order to be able to identify and use welding curtains, strips and screens as intended, they shall be permanently marked.
The marking shall be clearly visible with letters at least 10 mm high. The marking consists of the number of this standard, the certification mark (where applicable), the manufacturer’s, distributor’s or importer’s name or trade mark, month and year of manufacturing.