Table 6-1 Suggested Frequency of Physiological Monitoring for Fit and Acclimatized Workers

DOE-EM-STD-5503-94

TABLE 6-1

Suggested Frequency of Physiological Monitoring for Fit and

Acclimatized Workers

Adjusted Temperature

Normal Work Clothing

Impermeable Clothing

Calculation

90 F (32.2 C) or above

After each 45 minutes of work

After each 15 minutes of work

87.5 - 90.0 F

After each 60 minutes of work

After each 30 minutes of work

(30.8 - 32.2 C)

82.5 - 87.5 F

After each 90 minutes of work

After each 60 minutes of work

(28.1 - 30.8 C)

77.5 - 82.5 F

After each 120 minutes of work

After each 90 minutes of work

(25.3 - 28.1 C)

72.5 - 77.5 F

After each 150 minutes of work

After each 120 minutes of work

(22.5 - 25.3 C)

The following parameters should be used when monitoring workers:

Heart rate - Count the radial pulse as early as possible in the rest period to ensure a more

accurate reading. If the heart rate exceeds 110 beats per minute at the beginning of the

rest period, shorten the next work cycle by one-third and keep the rest period at the same

length. If, at the end of the following work period, the heart rate still exceeds 110 beats

per minute, shorten the work period again by one-third.

Oral Temperature - The utilization of oral temperature applies to the time immediately

after the worker leaves the contamination reduction zone. Using a clinical thermometer,

take the temperature for three minutes. If the oral temperature exceeds 99.6 F (37.6

C), shorten the next work cycle by one-third, without a change to the rest period. If the

oral temperature still exceeds 99.6 F (37.6 C) at the end of the following work period,

shorten the next work cycle by one-third. Do not permit a worker to perform duties

requiring a semipermeable or impermeable garment if the oral temperature exceeds 100.6

F (38.1 C).

Ear Canal Readings - Ear canal readings are a valid method to monitor the temperature of

workers who remain in the contamination reduction zone.

Body Water Loss - Measure body weight to see if enough fluids are being consumed to

prevent dehydration.

6-3