BS ISO 1161:2016 pdf download – Series 1 freight containers — Corner and intermediate fittings — Specifications
8 Required tests
8.1 General
The test set forth in 8.3.1 to 8.3.12 are to be conducted on each fitting except for those produced using a batch process. For a batch process, a minimum of 2 % of the fittings in each batch shall be tested. Test pieces must be randomly selected by the Certification Society from the batch under heat treatment at the time. At the end of each test, the fitting shall show no permanent deformation. A full dimensional check to ensure compliance with this International Standard, with respect to aperture dimension, wall thickness and overall dimensions, shall be done on each fitting. 8.2 Casting defect checks
8.2.1 A visual check for defects shall be done on the exterior and interior surfaces of each fitting. All defective fittings shall be destroyed.
8.2.2 A suitable non-destructive test (e.g. X-ray or ultrasound) shall be performed on one fitting from each casting batch. If defects are found, all fittings in the batch shall be tested. All defective fittings shall be destroyed.
8.3 Tests
8.3.1 The mechanical properties shall be checked and conformance with the minimum material properties set forth in Clause 4 confirmed for each heat and furnace lot of metal used to produce cast fittings. For fabricated fittings, each sheet of material used shall be tested and conformance confirmed.
8.3.2 Top fitting stacking test — The fitting shall be supported vertically on a typical corner post and horizontally by structures similar to typical cross sections for header and top side rail. The top face of the fitting shall be subjected to the full ISO load (942 kN) + 10 %. The load shall be applied perpendicular to the fitting equally distributed over the fitting’s top face. The load shall be applied for a minimum of 2 min.
8.3.3 Top intermediate fitting stacking test — The fitting shall be supported vertically on a typical intermediate post and horizontally by structures similar to typical cross sections for intermediate headers and top side rails. The top face of the fitting shall be subjected to the full ISO load (423 kN) plus 10 %. The load shall be applied perpendicular to the fitting equally distributed over the fitting’s top face. The load shall be applied for a minimum of 2 min. 8.3.4 Bottom fitting stacking test — The fitting shall be laid flat on a rigid test bed and a compressive force applied vertically downwards onto a typical corner post. The fitting shall be subjected to the full ISO load (1 200 kN) + 10 %. The load shall be applied for a minimum of 2 min. Fittings not marked so as to differentiate them as being either top or bottom fittings shall be subjected to the bottom fitting stacking test.
8.3.5 Bottom intermediate fitting stacking test — The fitting shall be laid flat on a rigid test bed and a compressive force applied vertically downwards onto a typical intermediate post. The fitting shall be subjected to the full ISO load (560 kN) + 10 %. The load shall be applied for a minimum of 2 min. Fittings not marked so as to differentiate them as being either top or bottom intermediate fittings shall be subjected to the bottom intermediate fitting stacking test.
8.3.6 Twistlock lifting test — The fitting shall be held firmly and a vertical force applied to the underside of the top face (bottom face for bottom fittings). The force shall be distributed over 800 mm 2 , 400 mm 2 on either side of the aperture. The force shall be at least 250 kN. The load shall be applied for a minimum of 2 min.
8.3.7 Cargo hook lifting test — The top corner fitting shall be held firmly and a vertical force applied using a cargo lifting hook hooked through the top and front aperture and the top and end apertures. The force applied shall be at least 194 kN. The load shall be applied for a minimum of 2 min.
8.3.8 Cargo hook lifting test 2 — The bottom corner fitting shall be held firmly and an angled force applied using a cargo lifting hook through the side aperture. The angle shall be 30° to the horizontal and the force applied shall be the equivalent of SinØ (194 kN). The load shall be applied for a minimum of 2 min.
8.3.9 Impact test — The fitting shall be held firmly and a vertical impact force of 150 kN applied to a 150 mm 2 area on the top face of the fitting centred between the aperture and the nearest side and end walls. The load shall be applied for a minimum of 2 min. The test shall be repeated on the bottom face. Top or bottom faces shall not be bowed or deformed on completion of testing. The testing tool may leave a small depression, which must be no deeper than 0,3 mm.
8.3.10 Lashing bar test — The bottom corner fitting shall be held firmly and a vertical force applied to the front aperture using a device similar to a lashing bar. The rear end of the fitting shall be left unsupported in a manner that is similar to the current container design. A force of 300 kN shall be applied for a minimum of 2 min.