This standard gives the requirements for two types of extruded limited fire hazard sleeving. Type A: Thin wall - internal diameter up to 30 mm Type B: Thick wall - internal diameter up to 30 mm. These sleevings are normally supplied in the following colours: black, red, green, blue, white, yellow. These sleevings have been found to be suitable up to temperatures of 90 °C. Sizes of colours other than those listed in this standard may be available as custom items. These items shall be considered to comply with this standard if they comply with the requirements listed in Tables 2, 3 and 4 excluding dimensions. Materials which conform to this specification meet established levels of performance. However, the selection of a material by a user for a specific application should be based on the actual requirements necessary for adequate performance in the application and not based on the specification alone.