SPLOPS module 7 Flashcards
What is a disadvantage of closed circuit SCBA?
inability to inflate a level A suit.
Easiest and most dangerous way for exposure from hazardous materials is?
through the respiratory system.
What is a “SAR”
supplied air respirator.
What is an “APR”
Air purifying respirator.
What is a major limitation of an “SAR”
hose length limited to 300ft.
Not approved in IDLH atmospheres unless equipped with an emergency escape SCBA.
What is a major limitation of an “APR”
Cannot be used IDLH or 02 deficient atmospheres (<19.5% 02)
Only protects against specific chemicals.
Not Positive pressure.
OSHA standard for selection, use , testing , cleaning, maintenance…
1910.134 1998 edition.
The OSHA law governing Respiratory equipment requires what type of notification to employees?
Written.
Describe Level A protective equipment….
Falls under NFPA 1991
provides highest level of respiratory and skin protection.
Should have flash protection.
Inner and outter gloves resistance of 60min
Pass 21 chemical tests for permeation.
Limitations of a Level A suit?
bulky
reduced mvt
communication is difficult.
physically stressful.
Describe level B protection?
NFPA 1992-highest level of respiratory protection
Protects against contacts with spills or splashes.
not- fully encapsulated –no permeation barrier/ just “Penetration”
not to be worn with dangerous gases or vapors
no thermal protection.
Limitations of level B suits
No permeation protection from gases or vapors
May still leak liquids
No thermal protection.
Describe Level C protection?
NFPA 1993- Respiratory uses a APR (lower respiratory protection)
Allows for splash or leak protection from liquids that are KNOWN.
Does not constitute a health hazard if exposed.
Limited to support zone activities.
Limitations of Level C suits?
Very use limited only for controlled situations.
No thermal protection.
Describe Level D protection?
Normal workplace protections and conditions.
No NFPA standard for Level D.
Use for in NON-EMERGENT situations.
What are the best methods to ensure heat related stress do not compromise hazardous entries from personnel?
Pre-donning physical and proper hydration.
NFPA donning recommendations V/S?
BP < 150/90 HR < 70% of max HR (220-age) RR<24/min Oral temp 97f - 99.5f Core temp 98f-100.5f No sick S/S or new medication including OTC for 72hrs No ETOH in last 6hrs
Define Penetration?
A “leak”. Movement of chemical through existing openings in a material or garment.
Penetration time criteria?
Garment must not show any leakage for 60min of continuous spray of water.
Define Degradation?
Change in a material caused by contact with another agent.
What are the visible signs of degradation?
charring, shrinking, softening, cracking, dissolving.
Define Permeation?
Movement of chemical through a material on the molecular level.
Normalized break-through time is defined as?
0.1ug/cm2/min @80.6F.
Define Actual break-through time?
When the detector first detects the chemical on the material being tested.
The first glove as the underglove should be which type?
nitrile - thin surgical type glove.
What is the function of a butyl glove?
primarily to protect the ensemble glove not chemical resistance.
The best course of action when determining what to wear in a flammable environment is?
Change the atmosphere.
If a chemical does not appear on the clothing for resistance, what can be done?
consult a chemical compatibility and product properties chart.
What issues are to be considered when wearing chemical protective clothing?
Buddy system
communications
working with tools
In- sight work.
where do instructions for donning and doffing clothing come from?
manufacturer.
when did soft permeable lenses become allowed?
Feb 1998 OSHA.
what is the minimum ratio to dress in protective clothing?
1:1
when should the mission briefing take place?
prior to members being suited up in CPC.
How should entry and back-up persons dress in CPC?
at the same rate and same level of dress.
A good donning team will a backup team ready in how many minutes?
less than 1.
level of protection for doffing persons out of CPC is determined by who?
safety officer and or group sector supervisor.
What is the last item removed of CPC?
Respiratory protection.
What needs to needs to be logged at a minimum for CPC?
Date of purchase manufacturer vendor serial # markings color material destruction date and disposal.
Simple testing for level A garments consists of what?
visual inspection and gastight integrity.
Simple testing of Level B garments consists of what?
visual inspection only.
