HMEPO Flashcards
10 point hazmat response system
- Approach safely
- screen the scene
- life risk assess
- hazmat information
- incident stabilise
- control the release
- environment protect
- objective, Ppe, decontamination
- contamination and exposure?
- hand over
- Approach safe
Weather info Up wind uphill Slow speed. Hazard awareness. Hazard zone. Safe siting of appliance DDOOR for vapour /Gas
Anions are?
Negative ion (An Neg)
Neg = gained electrons
(Angain)
Cations are?
Positive ion (cat+)
Pos= lost electrons
(Pos los)
Suffix ATE means what?
Common amount of oxygen atoms in an Anion
Ate= common
Suffix ITE means what?
ITE = less oxygen atoms than ATE
Suffix PER and ATE mean what?
Per and ATE is highest amount of oxygen in an Anion.
Suffix PO and ITE means what?
PO and ITE =Lowest amount of oxygen atoms in an Anion
Suffix ANE means what?
Basic hydrocarbon
Hydrocarbon chain lengths are? 1-10
Meth Eth Prop But Pent Hex Hept Oct Non Dec
Suffix ENE means what?
Contains double bond
Suffix YNE means what?
Contains triple bond
Suffix OL means what?
An alcohol
Suffix Anone means what?
A Ketone
Anoic means what?
Organic
Suffix Amine means what?
Nitrogen containing compound
- Screen the scene
Energy before matter. Physical form (solid, liquid,gas) Use TIC, Sol25m, Liq50m, Gas100m Container size Spill size Metal or non metal Initial cordon
3.life risks
Snatch rescues
Evacuation
Prevention
- Gather Hazmat info
UN/ GHS class ERG guide APP code Chemdata Direct observation HMA/HMEPO/SA
Identify hazards
5.stabilise the scene.
Review cordon Control ignition sources Cool container/product Isolate (move other products away) Protect risks Move container to safety? Turn off / reduce flow Ventilate Dilute? Neutralise Controlled pressure release
- Control the release
Fix Contain Cover Restrict Absorb Decant
Water bottoming
7.protect the environment
Source
Pathway
Receptor
Land=EA+owner
Air = Environmental health dept +EA
Sewers = water undertaker
8.Objective
PPE
Decontamination
Liaise other agencies Set Objective Select PPE Select Devon method Safety officers Pre entry brief/ confirm understanding
- Contamination
+ Exposure
Who/what contaminated? Who was exposed to hazmat? Responder exposure records? Delayed health effects RIDDOR? Crime scene?
- Hand over and close
Control of scene Hazards/risks remaining Hand over to: Product owner Responsible person/organisation Product consigner Land owner The "polluter pays" Hot debrief Repatriation of equipment
4 H gases lighter than air are?
Hydrogen
Hydrogen cyanide
Hydrogen fluoride
Helium
4H MEDIC ANNA
Gases lighter than air are?
Hydrogen
Hydrogen cyanide
Hydrogen fluoride
Helium
Methane Ethylene Diborane Iluminating gases (natural gas/methane Carbon monoxide Ammonia Neon Nitrogen Acetylene
Class 2 Gases involved in a fire may travel what distances?
Fireball 25m
Cylinder thrown 150m
Flying fragments 200m
With the exception of explosives,gas containers and radiation, What are the generic cordons for solids, liquids and Gases?
Solids 25m
Liquids 50m
Gases 100m
Default 25m double, double
What is an APP code?
Additional personal protection code
A = Fire kit, B.A + Gas tight B = B.A +Gas tight
4 body entry routes are?
Inhale
Ingest
Inject
Absorb
What is an isotope?
A type of element with differing numbers of neutrons
What is ionic bonding?
Between 2 atoms, 1 atom has lost an electron and the other has gained one
What is an atomic number?
The sum of electrons and protons (not neutrons) combined in an atom.
(Always the same amount of each)
What is the atomic MASS number?
Number of protons and neutrons (electrons are light so don’t count)
R.E.M. MASS+Neutrons
Letter “P” after a guide number means what?
May undergo violent polymerisation if heated or contaminated
Information resources are?
MSDS Chemdata ERG WISER Internet Weathermet/Chemmet
Need to knows on vapours are?
How much vapour? Heavier than air? Flammable? Water reactive? Will water curtain reduce the vapours?
Boiling point is?
Temperature at which a material becomes a Gas or vapour
Vapour pressure is?
Measure of how volatile a substance is
Atmospheric pressure is 100kpa
Water 3kpa
Petrol 30-65kpa
Diesel 0.6kpa
Vapour Density is?
Relative density of a vapour compared to Air
Air =1
Heavier than 1 =low lying vapour
Less than 1 = high lying vapour
LEL is?
Lowest % of a substance in air which can be ignited
What causes vapour pressure to rise?
Temperature / heat
Flash point is?
The temperature at which enough vapours are produced to form a flammable mix with air (reach LEL)
Gas cylinder danger distances?
Fireball 25m
Cylinder may propel 150m
Fragments 200m
What ERG guide would you use if no UN number, material name, placard, label, rail car or trailer?
Guide 111
If in doubt guide 111
What guide would you use for known explosives?
Except 1.4-1.6
Guide 112
What guide would you use for known explosives 1.4 and 1.6?
Guide 114
If an “X” appears before a Hazard identification number (e.g X30 or X33 as an intensification of that hazard) on the top half of an orange panel, what does it mean?
X = react dangerously with water
(X=No water)
Zero after number is no intensification (e.g. What would be X3 or 3 would be 30 or X30)
ERG classes a small spill as?
208 litres
One oil drum or less
Once explosives and Gas containers and radiation have been discounted, what are the generic cordons for different states of matter?
Gases and vapours 100m
Liquids/ solutions 50m
Solids 25m
