Sections 35.21-35.23 (relating to physical examinations) apply to employes engaged in the mixing or in the continual handling of dry lead in the form of lead carbonate, lead sulphate, lead oxides, lead chromate or other lead compounds in products where the mixture contains lead in excess of 50%.
34 Pa. Code § 35.21
This section cited in 34 Pa. Code § 35.22 (relating to requirement of examinations).