The words "occupational disease" mean a disease arising out of and in the course of employment which is due to hazards in excess of those ordinarily incident to employment and is peculiar to the occupation in which the employee is engaged. A disease shall be deemed an occupational disease only if caused by a hazard recognized as peculiar to a particular trade, process, occupation or employment as a direct result of continuous exposure to the normal working conditions thereof.

1. (1) It does not result directly and naturally from exposure in this State to the hazards peculiar to the particular employment;
2. (2) It results from exposure to outside climatic conditions;
3. (3) It is a contagious disease resulting from exposure to fellow employees or from a hazard to which the workman would have been equally exposed outside of his employment;
4. (4) It is one of the ordinary diseases of life to which the general public is equally exposed, unless such disease follows as a complication and a natural incident of an occupational disease or unless there is a constant exposure peculiar to the occupation itself which makes such disease a hazard inherent in such occupation;
5. (5) It is any disease of the cardiac, pulmonary or circulatory system not resulting directly from abnormal external gaseous pressure exerted upon the body or the natural entrance into the body through the skin or natural orifices thereof of foreign organic or inorganic matter under circumstances peculiar to the employment and the processes utilized therein; or
6. (6) It is any chronic disease of the skeletal joints.

No disease shall be deemed an occupational disease when: