Accident and loss statistics: Return to Example 1-1. For parts (b) and (c), the length of time for both the hours-based fatal injury rate and the recordable incidence rate was 1 year. What time period is required for the hours-based fatal injury rate and the recordable incidence rate to be equal to the chemical manufacturing rates?

Example 1-1.

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A company employs 1000 full-time employees. If the company has one fatality over a one-year time period, calculate (a) the worker-based fatal injury rate and (b) the hours-based fatal injury rate. If the company has one recordable injury rate in that same year, calculate (c) the total recordable incidence rate. Compare the answers for parts (b) and (c) to the numbers for chemical manufacturing in Table 1-8. Solution a. From Equation 1-2: Worker-based fatal injury rate b. From Equation 1-4: Hours-based fatal injury rate c. From Equation 1-5: = = = Recordable incidence rate = Total number of fatalities during period Total number of employees 1 x 100,000 workers = 100 1000 workers Total number of fatalities during period Total hours worked by all employees 1 fatality (1000 employees) (50 weeks/yr) (40 hours/wk) 200,000,000 hours 2,000,000 hours = 100 = Number of incidents during period Total hours worked by all employees x 200, 000 hours 1 recordable incident 2,000,000 hours x 100, 000 workers = 0.10 x 200,000, 000 hours x 200, 000, 000 hc x 200, 000 hours The part (b) answer compares to a chemical manufacturing value of 2.0 and the part (c) answer compares to a chemical manufacturing value of 2.1. The part (b) answer is well above the chemical industry value while the part (c) answer is well below it.