Presentation on theme: "Waterfront Shipping Company Limited"— Presentation transcript:
1 Waterfront Shipping Company Limited Methanol- What you need to know to be SAFE -
2 Methanol So what is this stuff ??????? Firstly, methanol can also be known by several other names:Methyl alcoholMethyl hydrateMethyl hydroxideWood alcohol
3 Methanol Chemically – this is what it looks like and this is its chemical formula :- CH3OH
4 Methanol The black is the carbon atom. Attached to that are three hydrogen atoms – in white.Also attached to the carbon atom is one oxygen atom, in red, which in turn has another hydrogen atom attached to it.
5 MethanolIn the real world, is this water or not – be careful !!!!!!It might also be:-Gin or Vodka or evenMETHANOLVisually, you cannot tell the difference
6 MethanolSo assuming that it is in fact methanol and therefore (unfortunately) not gin or vodka – can methanol harm me ????And the answer is YESMethanol has been around since the days of the early Egyptians and people have been using it incorrectly from that time, right up to the present day with quite often, fatal results.
7 Methanol – health effects If you swallow it, inhale it or absorb it, (depending on the quantity) you run the risk of it being dangerous to your health.The initial symptoms of methanol intoxication are indicated by the Central Nervous System being depressed, i.e:Headache / dizziness / nausea / lack of coordination / confusion / drowsiness and with a sufficiently large dose, unconsciousness and death.
8 Methanol – health effects So what do we mean by a “sufficiently large dose” ??Generally, this is now accepted as being 100 to 125 ml or 4 fl oz – that’s all it takes.Once the initial symptoms have subsided, a second set of symptoms will appear between 10 to 30 hrs after the initial exposure.This is due to the build up of toxic material in the blood and may result in respiratory failure.
9 MethanolSo don’t even think of drinking it or else you will be very sick and most likely, will die.
10 Methanol – personal safety ALWAYS, ALWAYS, ALWAYSwear the appropriate personal protective equipment when handling methanol.
11 Methanol – first aidDo not get it into your eyes or ears, or onto your face, hands and skin.If that happens, especially with your eyes, you must rinse thoroughly with fresh water for at last 15 minutes and seek medical assistance.
13 Methanol - fire Lets talk about fire, does this stuff burn? Yes it does, BUT in daylight you cannot see any flames at all – they are invisible !!!!!!!!!!!!!!!At night, you may be able to see a faint blue flame.
14 Methanol - fireAlso there is no smoke, so the only indication you will have of methanol being on fire is possibly seeing the heat waves rising.No smoke, hmm, where is the wind coming from ?If you are at sea, maybe you need to alter course and speed to keep the fire away from crucial areas of the vessel.
15 Also make sure YOU STAY UPWIND of the fire Methanol - fireAlso make sure YOU STAY UPWIND of the fire
16 Methanol - fireIf you are going to fight the fire with a fire extinguisher, a dry powder one is probably the best choice.
17 So you need to use lots of water. Methanol - fireBut if you start to fight the fire with water, remember that it will continue to burn with at least 4 parts of water to 1 part of methanol.So you need to use lots of water.
21 Methanol – tank safetyRemember that a methanol concentration above 200 ppm will be harmful to you as an individual.If the cargo tanks on your vessel are less than 3,000 CBM’s, then the current law states that you do not need to have the tanks inerted – they can be left full of methanol vapour.Lets talk about this vapour stuff
22 Methanol - vapourRemember you cannot see it and in all probability you may also not be able to smell it.If there is zero wind over the decks when you are loading then the vapour that is ejected from the P/V valves will just hang around over the decks and not disperse.You have to be safe and try to get yourself away from this vapour as continuously breathing it into your lungs is definitely not healthy.
23 Methanol tank entry So do you really need to go into the tanks? If yes, then how do you know the tank is safe to enter?What precautions do you take before entry- have you taken ALL safety measures?Have you completed a checklist?Have you checked the tank atmosphere?Do you have a man on stand-by at the tank access hatch?Do you know that you can be overcome by fumes just by looking into the open tank access hatch without wearing breathing apparatus?
27 Health effect due to lack of oxygen Effects & symptoms23.5Maximum ‘safe level’ (23.5% is often the high level alarm setting on most O2 detectors)21Typical O2 concentration in breathable air19.5Minimum ‘safe level’ (19% is often the low level setting on most O2 detectors)15-19First signs of hypoxia. Decreased ability for strenuous work. May induce early symptoms in persons with coronary, pulmonary or circulatory problems12-14Respiration increase with exertion, pulse rate increases, impaired muscular coordination, perception & judgement10-12Respiration further increases in rate and depth, poor judgement, lips turn blue8-10Mental failure, fainting, unconsciousness, ashen face, blueness of lips, nausea, vomiting, inability to move freely6-86 minutes exposure – 50% probability of death8 minutes exposure – 100% probability of death4-6Coma in 40 seconds, convulsions, respiration ceases, death
28 Methanol - Safety So what else is there to be aware of? You already know about this one, so smoke ONLY in designated places in the accommodation and NEVER on deck.
29 Methanol - SafetyMake sure that the tools you use on deck do NOT have the capability of producing a spark.This is really, really bad !!
30 Methanol - SafetyNobody but nobody should have a cell phone powered up on deck.If you see ANYONE with a cell phone on deck, check to see if it is powered down, if not, tell them to turn it off.
31 Methanol - SafetyYour communications radios (VHF or UHF) MUST be “intrinsically” safe and should only be able to operate on 1 watt power setting.
32 Methanol - SafetyIf you see anyone using a flash camera that is not intrinsically safe tell them that it is not allowed and do not take NO for an answer.
33 Methanol - Safety Finally, no matter what:- Make absolutely sure that all the PPE and safety equipment issued to you or supplied by the ship is ALWAYS in 100% operational condition.If you find that something is wrong – TELL SOMEONE – PREFERABLY THE SAFETY OFFICER OR THE MASTER do not walk away and assume that someone else will fix it.Remember that YOU are responsible for your own well being and safety.