Slides - Basic H2S-Rev03 - Aug 2023 2.pdf

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1. Basic H2S
(Hydrogen Sulphide)
Training
REF : OPITO Product Code : 9014
Unit Code : OIS-91

BASIC H2S rev3 Aug 2023

2. Vantage Central Training Register
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records held
by approved
centres
• Web Access

3.  If an emergency alarm is sounded, students must:
Listen to the announcement
Make your area safe
Vacate area and proceed to the assembly area
Report to course instructor
Report any missing students
Remain in area until given further instructions
There is a first aid station on site, all injuries are to be reported
to your course instructor immediately
Morning tea, lunch and afternoon tea will be taken in the
cafeteria
There is a no smoking policy in the buildings, you are
requested to use the smoking area adjacent to the cafeteria
 There are several toilets and change rooms around the facility
 Mobile phones are not to be used during assessment timings
SAFETY BRIEF
During our time together and in the event of a real emergency
Time is CURRENCY we will make good use of it!!

4. TRAINING
POOL
3
2
1
78
Entrance
5
Surau
Parking lot
FIRE GROUND
Guard House 1
Parking lot
Swing Rope
Smoke House
Rescue Training Area
6
11
Cafeteria
Classrooms’ Number Oxygen
First Aid Room AED

?
Registration
First Aid Room
Rev 08 EP 05-A
10
9
Admin
Block
MEM Suite
TSTC LAYOUT PLAN
Parking lot
7a
Trainer’s
lounge
Store
Lifeboat
Technician’s
room
BA training
area
H
Helideck Training
Area

5. Delegate Introductions
What job do you perform offshore?
How long have you worked in the Oil & Gas
Industry?
Which company do you work for?
What do you consider to be some of the risks
involved with working offshore?
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6. Why Train for
Emergencies?
Information is just knowledge!
Experience is everything!
Confidence is being able to apply that
Experience!
It is true that human beings will remember
nearly 90% of what they Experience
When compared to only 10% of what they hear
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7. Aims and Objectives
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The objectives of the training are that learners will be able
to:
a)Understand and explain the properties and associated
hazards of H2S.
b) Understand and explain information relating to the
function and use of relevant detection and respiratory
protection equipment.
c)Understand and practice appropriate emergency
response actions including the use of detection and
escape equipment.

8. Outcomes
Basic H2S – OIS-91
Learner will understand
1. H2S Hazards, Emergency Response Actions and Apparatus
Learner will perform
2. Safe use of essential PPE when dealing with H2S Hazards
and Emergencies
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9. TIME TABLE
TIME TOPICS VENUE
0800- 0810 (10 min)
0810- 0830 (20 min)
0820- 0950 (90 min)
0950 -1020 (30 min)
1020- 1035 (15 min)
1035- 1235 (120 min)
Registration & Safety
Introduction to Basic H2S Training (Aim, Learning Outcome, Time
table, Assessment, Staff)
H2S Hazards, Emergency Response Actions and Apparatus (theory)
Theory Assessment
Tea Break
Practical and assessment – Outcome 2
Classroom
Classroom
Classroom
Cafeteria
Fire ground
1235- 1335 (60 min)Lunch Cafeteria
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10. Assessment Guidance
Note : 30 minute written question
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•Learners will receive all theoretical learning as per Unit outcome prior
to practical assessment taking place.
•Assessment methods including but not limited to group or individual
discussion, verbal or written questioning, scenarios, virtual simulation,
and eLearning.
Assessment reference : OIS-91 (Outcome 1- 2)

11. Course Facilitator

Engku Ahmad Shaiful Tengku Mohamad
Working in oil, gas and petrochemicals industry with The Titan Group in 1993, as Operation Technician. Leaving
Titan, he join TCL Industries Sdn Bhd as Senior Operation Technician in 1997 and left for Ciba Specialty
Chemical Sdn Bhd for Production and Environment, Health, Safety and Security (EHS) Coordinator in 1998,
before joining OPTIMAL Group of Companies in year 2000. OPTIMAL is a joint venture project between Union
Carbide Chemical (later bought over by DOW Chemicals) and PETRONAS Malaysia Berhad, now known as
PETRONAS Chemical Olefins, Glycol and Derivatives (M) Sdn Bhd (PCOGD).
Niche facilitation;
• Hydrogen Sulphide (H2S) Awareness
• Mercury (Hg) and Personnel Protection
• Benzene (C6H6) Awareness
• Carbon Monoxide (CO) Awareness
• HAZMAT Operation Level
• Emergency Response Team (ERT)
• Emergency Command Centre (ECC
• Incident Command System (ICS)
• Self Contained Breathing Apparatus (SCBA)
• Authorized Gas Tester
• Confined Space Entry Safety
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12. OIS-91
Basic H2S Training
Outcome 1
H2S Hazards, Emergency Response
Actions and Apparatus
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13. Colorless, offensive stench odor of rotten eggs in low
concentration
High concentration it damage the sense of smell
Highly corrosive to certain metals
Highly toxic gas of by-product by decomposition of
animal, vegetable, and or organic material substances
Detectable as lowest of 2 ppb (part per billion)
What is H2S
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14. •Wellhead Area
•Drilling
•Process Area
•Pipeline
•Plant/Terminal
•Storage Tank
•Flanges
Common Area H2S Found
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15. •Sour Gas
•Rotten-Egg Gas
•Sulfated Hydrogen
•Stink Dump
•Sulfur Hydride
Other Names of H2S Gas - Known
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16. H
2S
Boiling
Point:
-60 °C
Melting
Point:
-82°C
Flash
Point:
-82.4°C
Auto-
ignite:
260°C
Density:
1.363
g/dm
3
Vapor
Pressure
:
1740
kPa
(@21°C)
Molar
mass:
34.08
g/mol

Slightly
soluble in
H
2O
Specific
Gravity :
1.189
H2S Chemical Properties
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17. Heavier than air
Specific Gravity of 1.189
Liquid Density (at boiling point) is 914.9 kg/m
3
Gas Density (at boiling point) is 1.93 kg/ m
3
Water and oil soluble
H2S is a poison that can paralyze your breathing
system and KILL you in minutes even in small
amounts, it is dangerous to health
Physical Properties and
Characteristics of H2S
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18. H2S is EXPLOSIVE
•Capable to ignite and explode when subject to spark or
ordinary flame at concentration of 4.3% - 44% in the
atmospheric
•7 times more flammable than Gasoline
•Burn with a blue flame and produce Sulphur Dioxide (SO2)
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19. WEL : Workplace Exposure Limit
OEL : Occupational Exposure Limit
TWA : 5 ppm(8 hours)
STEL : 10 ppm (15 minutes)
IDLH : 100 ppm
Measurement
TWA : Time Weighed Average
STEL : Short Terms Exposure Limit
IDLH : Immediate Dangerous to Life and Health
ppm : Part per Million
10,000 ppm = 1 vol %
BASIC H2S rev3 Aug 2023

20. Workplace Exposure Limit (WEL)
Occupational Exposure Limit (OEL)
•TWA (Time Weighted Average) is an Average
concentration not to be exceeded over 8 hours
period
•STEL (Short Term Exposure Limit) is Concentration
not to be exceeded in 15 minutes period
•Ceiling Limit (C) is Concentration never to be
exceeded
•IDLH (Immediate Dangerous to Life and Health) is
Concentrations that lead to permanent or irreversible
damage in 30 minutes of exposure
•TLV (Threshold Limit Value) is some Limit Value of
set to the material
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21. H2S Hazard – Physiological Effect
The highly toxic gas block
the oxygen use by human
body
Tissues that require
oxygen such as the
nervous system and heart
are particularly affected
At High Concentration,
Fatality are Imminent
BASIC H2S rev3 Aug 2023

22. H2S Hazard - Toxic Exposure Effect
Acute Effect
High Dose at One Time Exposure
Chronic Effect
Low Dose at Repeated Exposure Over Long Period
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23. Toxicity Level and Effect
0.13 ppm : Minimal odor
4.60 ppm : Easily detectable
10 ppm : Begin eye irritation
27 ppm : Strong unpleasant odor
100 ppm : Coughing, eye irritation, loss of sense
of smell
300 ppm : Respiratory Tract irritation after 1 hour
exposure
700 ppm : Loss of Consciousness, possible fatal
in 30 minutes to 1 hour exposure
1000 ppm : Rapid unconsciousness, breathing stop
and fatal
2000 ppm : Unconsciousness at once, FATAL even
if the casualty moved to fresh air
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24. H2S Gas Detection
&
Alarm System
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25. There are many ways to detect H2S
1.Electronic Portable Gas Detector
2.Air Sampling Tubes
3.Fixed Electronic Gas Detector
WARNING !
DO NOT RELY ON YOUR NOSE
TO TELL HOW MUCH H2S IS PRESENT
H2S Gas Detection
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29. Actions to be taken in the Event of an
Emergency Alarm
1.DO NOT PANIC
2.Hold your breath and immediately don
your escape set or respiratory protection
3.Follow facility established instruction or
established Emergency Response
Procedure
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30. Respiratory Protection
Equipment
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31. Respiratory Protection Equipment
Compressed Air Breathing Apparatus
EBA
SCBA
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32. Emergency Response Procedure
Sound the Alarm
Check wind direction, maintain Up-Wind
position, avoid Lay-Low area – assembly and
response
Assemble all personnel at Designated Assembly
Area
Head count and Triage
Wear Self-Contained Breathing Apparatus
(SCBA) for rescue
Rescue casualty, provide fresh air supply IF
necessary
Handover casualty to Medical for further
treatment
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33. TERENGGANU SAFETY TRAINING CENTRE SDN BHD
Thank you for your attention.
THE END
BASIC H2S rev3 Aug 2023