Flammability Rating All upholstery and fabrics supplied by ACE Furniture meet BS5852: 2006 Ignition Source 5 fire regulations. We can also treat fabrics to Crib 7 if required. Crib 5 Performance Standard BS7176 – MEDIUM HAZARD Tested to cigarette (EN1021-1) and Match ignition sources (EN1021-2 and CRIB 5 (BS5852) sources. For hotels, public buildings and healthcare environments. Crib 7 Performance Standard BS7176 – HIGH HAZARD Tested to cigarette (EN1021-1) and Match ignition sources (EN1021-2 and CRIB 7 (BS5852) sources. For prisons and some hospitals.