INSTRUMENTATION AND EQUIPMENT

• Temperature measuring devices such as standard thermometers and electronic thermometers.
• Temperature sensing devices such as thermocouples, thermostats, or other temperature sensors used with readout devices.
• Humidity measuring devices including sling psychrometers, electronic thermo-hygrometers and dew point or humidity sensors.

TEST PROCEDURES – TEMPERATURE.

• Verify completion of HVAC system testing, adjusting and balancing (TAB) work prior to performing these tests.
• Allow the HVAC system to operate under automatic control for 24 hours prior to tests.
• Measure the temperature at a minimum of one location for each temperature control zone.
• Place each thermometer or each sensor at the designated location at work level height. Allow time for the sensor to stabilize sufficiently for accurate readings.
• Record the time and temperature reading at each location for each temperature control work zone.

TEST PROCEDURES—HUMIDITY

• Verify completion of HVAC system testing, adjusting and balancing (TAB) work prior to performing these tests.
• Allow the HVAC system to operate under automatic control for 24 hours prior to tests.
• The relative humidity is to be measured at a minimum of one location for each humidity (temperature) control zone. Place the humidity device or sensor at the designated location and height, allowing the sensor to stabilize.
• Measure and record the humidity readings simultaneously with temperature readings.

FIND MORE AT…
Reference links
http://www.who.int/medicines/areas/quality_safety/quality_assurance/SupplementaryGMPHeatingVentilationAirconditioningSystemsNonSterilePharmaceuticalDosageFormsTRS961Annex5.pdf

http://pharmaguidances.com/hvac-system-re-qualification-protocol/