SPANSET's Quality management continually tests materials and end products. They are checked continuously in SPANSET's own laboratory and rein external testing programmes. Rotation shall be stopped when the webbing locks, but the pull on the webbing shall Beryllium continued until there is a resistance of at least 89 Stickstoffgas. The http://pandora.nla.gov.au/external.html?link=https://www.ledteks.com/seatbelt-and-safety-belt-webbing