Sec. 19-13-E2. Manufacture of tetraethyl lead and the blending of the latter to make ethyl fluid

(a) No person shall be employed without adequate instructions as to the nature of the hazard and the precautions to be taken.

(b) Each worker shall have a periodical physical examination which shall consist of such physical and other tests as are indicative of the absorption of tetraethyl lead and shall include, as a minimum, the following items: (1) Examination of blood for stippling by carefully trained workers, using positive and negative controls, without knowledge of the source of the slides; this examination shall be once a week for the first three weeks, and bimonthly thereafter; (2) semimonthly contact with the plant physician for an informal statement as to general health; (3) bimonthly weight, stripped; (4) bimonthly systolic and diastolic blood pressure estimation, while sitting; (5) bimonthly hemoglobin estimation by Dare's hemoglobinometer. Exact records of these examinations shall be kept, and persons showing gradually increasing amounts of stippling, sudden development of stippling or other marked deviation from normal shall be promptly excluded from tetraethyl lead work, irrespective of whether or not such finding may be indicative of lead poisoning. All parts of the plant where lead in any form is used shall be subject to sanitary measures to prevent collection and dissemination of lead dust.

(c) Separate ventilation systems shall be provided for the manufacturing apparatus and for the air of the rooms, the outlets of the latter being located near the floor of each room, and all external inlets and outlets being so situated as to avoid dustiness and appreciable contamination of the air around the plant.

(d) Daily inspection shall cover efficiency of ventilating systems, all joints, valves and gaskets of manufacturing apparatus and adequacy of pressure-hose respirators.

(e) All containers of ethyl fluid or tetraethyl lead shall be labeled as to exact content and danger and shall conform to the regulations of the interstate commerce commission. These containers shall be carefully tested for leaks and shall bear a plainly legible label stating that they are to be closed tightly immediately when emptied, without cleansing, and sent back to the plant.

(f) Kerosene or other material used for cleansing the containers of ethyl fluid or tetraethyl lead shall be placed in the containers by means of a closed system with air vents to outside air and with adequate ventilation.

(g) The filling shall be performed by means of a closed system with air vent from the container to the outside air and with adequate ventilation.

(h) A dye shall be added to ethyl fluid in sufficient amount to give staining qualities to the ethyl gasoline to deter individuals from using it for cleansing or other similar purposes.

(i) Reports shall be made monthly to the state department of health covering the following points: (1) The number of workers employed at the beginning of the month; (2) the number of workers employed at the close of the month; (3) the number of new workers; (4) the number of workers separated from tetraethyl lead work on account of the results of examinations; (5) the number of definite cases of poisoning; (6) the condition of cases of poisoning previously reported so far as known.