SCHEDULE PART A Blast furnaces. Bricks and title works in which unglazed bricks or tiles are made. Cement works. Chemical works. Copper mills. Gas works. Iron and steel mills. Stone, slate and marble works. The following parts of factories. Rooms used only for the storage of articles. Rooms in which the walls or ceiling consist of galvanised iron, glazed bricks, glass, slate, asbestos, bamboo, thatch. Parts in which dense steam is continuously evolved in the process. Parts in which pitch, tar or like material is manufactured or is used to substantial extent, except in brush works. The parts of a glass factory known the glass house. Rooms in which graphite is manufactured or is used to substantial extent in any process. Parts in which coal, coke, oxide or iron, ochre, lime or stone is crushed or ground Parts of walls, partitions, ceilings or tops of rooms which are at least 20 feet above the floor. Ceilings or tops of rooms in cement works, bleach works or dye works with the exception of finishing rooms or ware-houses. Inside walls of oil mills below a height of 5 feet from the ground floor level. Inside walls in tanneries below a height of 5 feet from the ground floor level where a wet process is carried on. | 
