Conforms to BS EN ISO 21898 : 2005 & EFIBCA Standard 005 – SWL : 1000kgs and SF : 5:1 (single trip).. Manufactured from woven polypropylene, the high capacity and strength make them ideal for the transport and storage of top soil, rubble, hardcore, stones, sand and other builders materials. tested to BSEN1898: 2001 with 5:1, 6:1 or 8:1 safety factors.