§ 310. Foundries. Foundries shall conform to the provisions of this chapter relating to factories and also to the following requirements:

1. Entrances and windows shall be constructed and maintained so as to minimize drafts.

2. Gangways shall be constructed and maintained of sufficient width to make the use thereof by employees reasonably safe and shall not be obstructed during the progress of casting.

3. Smoke, steam or gases generated in foundries shall be effectively removed therefrom in accordance with rules adopted by the board. The milling and cleaning of castings and the milling of cupola cinders shall be done under such conditions to be prescribed by the rules of the board as will adequately protect the employees from dust. The use of heaters discharging smoke or gas into the work rooms is prohibited except that open fires may be used under conditions prescribed by the board in its rules. Suitable provision shall be made for drying the working clothes of employees.

4. All apparatus, tools, implements and equipment shall be kept in proper condition and repair.

5. A first aid kit shall be provided for the use of employees in case of burns or accidents.

6. Where ten or more persons are employed (a) there shall be provided suitable and convenient wash rooms adequately equipped with hot and cold water. Such wash rooms shall be kept clean and properly heated. (b) Lockers shall be provided for the employees' clothing. (c) If outside watercloset or privy accommodations are permitted by rules of the board, they shall be properly heated and the passageway leading from the foundry thereto shall be so constructed and protected that employees using the passageway shall not be exposed to the outdoor atmosphere.