NAVOSH II Flashcards by Brian Riley

Define Heat Stress

Any combination of air temperature, thermal radiation, humidity, airflow and work load which can stress the body to regulate temperature

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List the factors that cause heat stress

Thermal
Humidity
Air/Sea
Ventilation

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Examples of thermal radiation

sun
Heat sources( incinerators/ Engines/ Generators/ laundry/dryers)

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Examples of Ventilation

Forced air flow systems

Forced exhaust systems

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Examples of Humidity

Steam leaks
Bilge water
Condensation

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Examples of the water/ sea water temp

Refer units
engines
generators
evaporators for fresh waters

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Define Acclimation

The act of becoming accustomed to temperature or new environment/ Usually 3 weeks or more

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List some personal factors that contribute to HEAT stress

Past exposure/ injurie's
Current Health status 
Exercise and fluid intake
Medication
Alcohol intake
Lack of sleep
Drugs

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What are come common locations for Heat stress conditions on a ship

Machinery spaces
Laundry
Sculleries(Phel V)
Incinerator room
Flight decks

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What are some contributing factors that lead to heat stress on the ship

Steam and water leaks
Ventilation Deficiencies
Arduous Operations

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What is the PHEL

Physiological Heat Exposure Limit

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The PHEL has how many curves, and who creates it

Industrial Hygienist and NAVSEA

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What are the PHEL curve categories

Routine Operations
NON routine Operations
ECC exercises (Evacuation control center drills)
Heavy Duty Work Load

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What are the PHEL curve categories

Routine Operations
NON routine Operations
ECC exercises (Evacuation control center drills)
Heavy Duty Work Load

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What are the PHEL curve categories

Routine Operations
NON routine Operations
ECC exercises (Evacuation control center drills)
Heavy Duty Work Load

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What are the PHEL curve categories

Routine Operations
NON routine Operations
ECC exercises (Evacuation control center drills)
Heavy Duty Work Load

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Heavy work loads are always what PHEL curve?

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Explain Stay time

Maximum allowable time personnel may work in a heat stress condition at any given work load

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What is recovery time

it is the minimum of twice the stay time as determined by PHEL and 4 hours whichever is shorter

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What are stack gases

gases which may accumulate in a space due to inadequate ventilation or machinery malfunction

Who must conduct Heat stress training and at what interval?

The MDR and Annually and during Indoc

Heat stress training must include what at a Minimum (5)

Hazards
Sx’s of exposure
Heat stress first aid
Heat stress monitoring
Cause of heat stress

Heat stress monitors must complete what trainings? and in what time period?

Watch station 318 PQS
NAVEDTRA 43704

12 weeks (3mo)

How are Heat stress injuries reported?

Accident and injury report

What is the WESS and what is it used to submit?

Web Enabled Safety System | A&I reports

All Heat stress injuries must be reported through what?

Naval Disease Reporting System (NDRS)

What do you do when you do not have access to the NDRS

Submit a Medical Event Report

The SMDR does what in relation to Heat stress surveys?

review all heat stress reports for inaccuracies and QA and make recommendations on crew health

The supervisor or EOOW do what with heat stress surveys?

note any existing problems and corrective actions implemented

Heat stress surveys with reduced stay time must be routed through who? to alter them

the CO

THE SMDR retains all reports for how long?

1 YEAR

What does the DB thermometer do?

Measures ambient air temperature at work sites where heat stress conditions can occur

Dry bulbs but be within what accuracy window to be accurate?

5 degrees of the WBGT

what do you do if the DB is not within the 5degree window?

reposition to ensure its reading accurately if still wrong change it out

the DB must be read when?

every 4 hours for manned spaces not exceed 85

THE DB is read hourly when?

Heat casualties and if it exceeds 85 degrees

When do you circle the temperate in red?

100 or higher

What are two types of heat stress meters?

RSS-220 | Questtemp 48N

What can the heat stress meters measure?

Dry Bulb Sensor (ambient Temp) Wet Bulb (Humidity) Globe (radiant temp) heat loss ETC

what is the WBGT index?

average of DB/WB and globe temp together

equation of WBGT index?

(0.1xDB)+(0.7xWB)+(0.2xGT)

When are you required to monitor heat stress?

Work length 4hr or less and DB is equal to 100 (PHEL I-III) Work Length is greater than 4hrs and DB =90 (PHEL I-III) equal to or greater than 85(PHEL IV-VI)

When do you do follow on survey?

DB temp is more than 5 Degree from hanging DB in previous survey

For the RSS-220 what is the start up and subsequent reading times?

5 mins | 3 minutes

At what height and distance from chest do you hold the RSS-220

Chest Height and 1 ft

What is the start up and subsequent testing time for the QUESTemp 48N

10 minutes | 5 minutes

At what height and distance from the chest do you hold the QUESTemp?

Chest height | 18'' from the body

What is the AHSS ?and how many WBGT must be on ship equipped with it?

Automated Heat Stress System | Two portable WBGT