R 325.51933 Biological monitoring.

Rule 33. An employer shall make available biological monitoring in the form of blood sampling and analysis for lead levels to each employee who or may be exposed to concentrations of lead greater than the action level for more than 30 days a year in accordance with the following schedule: (a) At least once every 6 months for each employee. (b) At least once every 2 months for each employee whose blood sample and analysis indicated a blood lead level at or above 15 micrograms (µg) per deciliter (dL). The 2-month frequency shall continue until 2 consecutive blood samples and analyses indicate a blood level below 15 µg/dL of whole blood. (c) At least monthly during the period of time an employee is removed from exposure to lead due to an elevated blood lead level.