Tuesday, June 4, 2013

PENGENALAN KEPADA SISTEM OPERASI PENGURUSAN

1.0 TUJUAN SISTEM OPERASI PENGURUSAN

Sistem operasi pengurusan (management operating system) adalah kaedah yang digunakan untuk merancang, mengawal dan meningkatkan prestasi sesebuah bahagian organisasi melalui pemantauan penunjuk-penunjuk prestasi utama (key performance indicators) dan laporan-laporan yang membolehkan pelaksanaan tindakan pembetulan jangka pendek (short-interval control) yang dilakukan secara berterusan.

Suatu sistem operasi pengurusan yang efektif mampu menyelaraskan usaha kesemua kakitangan sesebuah bahagian atau seksyen dan memandu ke arah pencapaian objektif dan matlamat yang telah ditetapkan. Ia memastikan sumber manusia, fizikal serta teknologi dapat diagihkan secara seimbang selari dengan keperluan organisasi, memberikan visibiliti kepada perjalanan operasi dan membolehkan pengawalan yang efektif kepada aktiviti-aktiviti bahagian dan seksyen organisasi.

Sistem operasi pengurusan bertujuan;

membolehkan pihak bahagian/seksyen menterjemahkan objektif-objektif organisasi kepada terminologi yang difahami kakitangan dalam konteks bidang tanggungjawab mereka.

  • Melengkapkan pihak bahagian/seksyen dengan alat-alat kawalan yang sesuai untuk memastikan kerja dapat disempurnakan secara efisien dan tepat pada masanya.
  • Menyediakan kaedah untuk merancang dan menugaskan kerja serta membuat susulan ke atas kerja yang telah dilaksanakan.
  • Membolehkan pihak pengurusan mengenali masalah yang timbul supaya ianya dapat diselesaikan dengan segera.
  • Menyediakan laporan-laporan yang mampu menunjukkan dengan jelas pencapaian bahagian/seksyen seperti yang ditetapkan oleh pihak pengurusan.

PRINSIP SISTEM OPERASI PENGURUSAN

Dalam pembangunan dan perlaksanaan suatu sistem kawalan pengurusan, penekanan harus diberi kepada reka bentuk rangkaian kawalan dan prosedur-prosedur yang membolehkan semua tahap pengurusan melaksanakan prinsip-prinsip seperti berikut:-

Semua kerja harus dikaitkan dengan masa untuk tujuan perancangan dan penjadualan (work-to-time relationship).
Semua kerja dan elemen-elemen yang berkaitan dengannya mesti dirancang dan dikawal secara jangka pendek (short- interval control).
Semua masalah dan kesilapan mesti dipantau dan dikenal pasti penyebabnya supaya dapat dikaitkan antara sebab dan akibat (cause and effect).
Semua masalah dan kesilapan harus disiasat secepat mungkin untuk memastikan penyelesaian yang segera (corrective action) dan mencegah ianya daripada berulang (preventive action).
Laporan-laporan maklum balas harus ringkas, mudah difahami, dan mengutamakan faktor-faktor penting sahaja untuk perhatian pihak pengurusan.

FAEDAH SISTEM OPERASI PENGURUSAN

Faedah-faedah yang boleh diperoleh oleh organisasi dari penggunaan sistem operasi pengurusan termasuk seperti berikut:-

  • Ia membolehkan penggunaan bahasa yang sama, di mana matlamat-matlamat organisasi, bahagian, seksyen dan kawasan boleh di sampaikan dan difahami oleh semua tahap pengurusan dan pekerja.
  • Ia takrifkan dengan jelas tanggungjawab dan menetapkan kebertanggungjawaban kesemua kakitangan bahagian dan seksyen.
  • Ia menyediakan kaedah untuk menilai prestasi berbanding rancangan dan mengawasi perkembangan secara berkala.
  • Ia menyediakan kaedah pemantauan dan penilaian prestasi menggunakan Indikator Prestasi Utama (KPIs), yang membolehkan keputusan dibuat berdasarkan maklumat, bukan anggapan.
  • Ia membolehkan perwujudan sistem pembaikan berterusan dan memastikan tindakan diambil oleh pihak yang berkenaan untuk masalah-masalah yang dikenal pasti.
  • Ia membuka saluran komunikasi yang berkesan pada semua peringkat organisasi.
  • Ia memupuk semangat kerja berpasukan dalam bahagian dan seksyen dan mampu menanam perasaan kebanggaan dan pemilikan kerja.


Keberkesanan Sistem Operasi Pengurusan bergantung kepada tahap penglibatan dan sokongan yang diberikan oleh setiap tahap pengurusan dan pekerja. Pada hakikatnya, Sistem Operasi Pengurusan tidak dapat menyelesaikan semua masalah operasi, tetapi penggunaan sistem secara baik dengan memberi penekanan kepada keperluan tindakan pembetulan secara berterusan dapat meningkatkan keberkesanan operasi mana-mana bahagian organisasi.





Monday, June 3, 2013

SAFETY AND HEALTH ACT (OSHA)

PURPOSE :

This information sheet will provide information pertaining to Policies, Regulations, Occupational Safety and Health Act (OSHA). It will help the student understand the purpose of Policies, Regulations, Occupational Safety and Health Act (OSHA) and method of implication of Safety and Health Act and Regulation requirement.

 INFORMATION


OCCUPATIONAL SAFETY AND HEALTH ACT (OSHA)


1.    Section Related In OSHA Which Cover In The Information Sheet Are As Follow:

Section 15.

General Duties of Employers and Self-employed Persons to Their Employees.

( 1 )   It shall be the duty of every employer and every self-employed person to ensure, so far as is practicable, the safety, health and welfare at work of all his employees

( 2 )   Without prejudice to the generality of subsection ( 1 ), the matters to which the duty extends include in particular –

(a)          the provision and maintenance of plant and systems of work that are, so far as is practicable, safe and without risks to health;

(b)          the making of arrangements for ensuring, so far as is practicable, safety and absence of risks to health in connection with the use or operation, handling, storage and transport of plant and substances;

(c)          the provision of such information, instruction, training and supervision as is necessary to ensure, so far as is practicable, the safety and health at work of his employees;

(d)          so far as is practicable, as regards any place of work under the control of the employer or self-employed person, the maintenance of it in a condition that is safe and without risks to health and the provision and maintenance of the means of access to and egress from it that are safe and without such risks;

(e)         the provision and maintenance of a working environment for his employees that is, so far as is practicable, safe, without risks to health, and adequate as regards facilities for their welfare at work.



( 3 )   For the purposes of subsections ( 1 ) and ( 2 ) –
(a)          “employee” includes an independent contractor engaged by an employer or a self-employed person and any employee of the independent contractor; and

(b)          the duties of an employer or a self-employed person under subsections ( 1 ) and ( 2 ) extend to such an independent contractor and the independent contractor’s employees in relation to matters over which the employer or self-employed person –
( i )       has control; or
( ii )      would have had control but for any agreement between the employer or self-employed person and the independent contractor to the contrary.


Section  16. 

Duty to Formulate Safety And Health policy
Except in such cases as may be prescribed, it shell be the duty of every employer and every self-employed person to prepare and as often as may be appropriate revise a written statement of his general policy with respect to the safety and health at work of his employees and organisation and arrangement for the time being in force for carrying out that policy, and to bring the statement and any revision of it to the notice of all his employees.


Section  17.

General Duties of Employers and Self-employed Persons to Persons Other Than Their Employees.

( 1 )  It shall be the duty of every employer and every self-employed person to conduct his undertaking in such a manner as to ensure, so far as is practicable, that he and other persons not being his employees, who may be affected thereby are not hereby exposed to risks to their safety or health.

( 2 ) It shall be the duty of every employer and every self-employed person, in the prescribed circumstances and in the prescribed manner, to give to persons, not being his employees, who may be affected by the manner in which he conducts his undertaking, the prescribed information on such aspects of the manner in which he conducts his undertaking as might affect their safety or health.
Section  18.

Duties of An Occupier of A Place of Work to Persons Other Than His Employees.

( 1 ) An occupier of non-domestic premises which has been made available to persons, not being his employees, as a place of work, or as a place where they may use a plant or substance provided for their use there, shall take such measures as are practicable to ensure that the premises, all means of access thereto and egress there from available for use by persons using the premises, and any plant or substance in the premises or provided for use there, is or are safe and without risks to health.

( 2 )   A person who has, by virtue of a contract or lease or otherwise, an obligation of any extent in relation to –

(a)          the maintenance or repair of a place of work or any means of access thereto or egress there from; or

(b)          the prevention of risks to safety and health that may arise from the use of any plant or substance in the place of work,

shall for the purpose of subsection ( 1 ) be deemed to have control of the matters to which his obligation extends.

Section  19.  

Penalty for on offence under section 15, 16, 17, or 18.

A person who contravenes the provisions of section 15, 16, 17, or 18 shall be guilty of an offence and shell, on conviction, be liable to a fine not exceeding fifty thousand ringgit or to imprisonment for a term not exceeding two year or to both.

Section  24.

General Duties of Employees at Work

( 1 )   It shall be the duty of every employee while at work –

(a)           to take reasonable care for the safety and health of himself and of other persons who may be affected by his acts of omissions at work;

(b)          to co-operate with his employer or any other person in the discharge of any duty or requirement imposed on the employer or that other person by this Act or any regulation made there under;

(c)          to wear or use at all times any protective equipment or clothing provided by the employer for the purpose of preventing risks to his safety and health; and

(d)          to comply with any instruction or measure on occupational safety and health instituted by his employer or any other person by or under this Act or any regulation made there under.

( 2 )   A person who contravenes the provisions of this section shall be guilty of an offence and shall, on conviction, be liable to a fine not exceeding one thousand ringgit or to imprisonment for a term not exceeding three months or to both.



Regulation

Occupational Safety And Health (Employers’ Safety And Health General Policy Statements) (Exception) Regulations 1995

In exercise of the powers conferred by sections 16 and 66 of the Occupational Safety and Health Act 1994, the Minister makes the following regulations:

1.            Citation and commencement

These regulations may be cited as the Occupational safety and health (Employers’ Safety and Health General Policy Statements) (Exception) Regulations 1995 and shall be deemed to have come into force on the 25th February 1994.

2.            Exception.

Section 16 of the Act shall apply to every employer and every self-employed person except those who carry on an undertaking with not more than five employees.
Made the 22nd February 1995
                                                                                               Dato’ Lim Ah Lek
                                                                                       Minister of human Resources



SAMPLE OF SAFETY & HEALTH POLICY

 Section   30

Establishment Of Safety And Health Committee At Place Of Work

( 1 )   Every employer shall establish a safety and health committee at the place of work in accordance with this section if :-
( a )      there are forty or more persons employed at the place of work; or
( b )      the Director General directs the establishment of such a committee at the place of work.
( 2 )   The composition of safety and health committee established under subsection ( 1 ), the election or appointment of persons to the committee, the power of the member s of the committee and any other matter relating to the establishment or procedure of the committee shall be as prescribed.
( 3 )  Every employer shall consult the safety and health committee with a view to the making and maintenance of arrangement which will enable him and his employees to co-operate effectively in promoting and developing measures to ensure the safety and health at the place of work of the employees, and in checking the effectiveness of such measures.
( 4 )   A person who contravenes the provisions of this section shall be guilty of an offence and shall, on conviction, be liable to a fine not exceeding five thousand ringgit or to imprisonment for a term not exceeding six months or to both.

Section   31

Function Of Safety And Health Committee

The safety and health committee establish at a place of work pursuant to section 30:-

( a )   shall keep under review the measures taken to ensure the safety and health of persons at the place of work;

( b )   shall investigate any matter at the place of work :-

( i )       which a member of the committee or a person employed there at is not safe or is a risk to health ; and

( ii )      which has been brought to be the attention of the employer;


( c )   shall attempt to resolve any matter referred to in paragraph  (b) and, if it is unable to do so, shall request the Director General to undertake an inspection of the place of work for that purpose; and

( d )   shall have such other functions as may be prescribed.


  1. Establishment Of Safety And Health Committees

2.1    The Law requires every employer to establish a Safety and Health Committee at the place of work where forty (40) or more persons are employed.
a.            Formation of the Safety and Health Committee with Management / Employees / Union representatives.
b.            Elected appointments of persons to the committee.
-               Main committee
-               Sub-Committee, i.e. plant and non-plant.
c.            Powers of the members of the committee.
d.            Procedures for the committee.
e.            Terms of reference for the committee.
f.             Employer’s focal point on all safety and health matters in promoting and developing measures to ensure the safety and health at the place of work.

2.2    Function
a.            The committee shall keep under review the measures taken to ensure the safety and health of persons at the place of work.
b.            To investigate any matter at the place of work:
i)              When a member of the Committee or a person employed thereat   considers is not safe or is a risk to health.
ii)             Which has been brought to the attention of the employer.
iii)            Shall attempt to resolve any matter referred to the employer.
iv)           To request the Director General of Occupational Safety and Health Department to undertake an inspection of the place of work.
v)            Shall have such other functions as may be prescribed.



2.3    Safety Committee

The Safety Committee comprising the following order would be most effectual and ideal situation
Chairman                    -           The Manager Director
Deputy Chairman       -           A Deputy Chairman should be appointed to take      
                                               over when the Chairman finds it impossible to
attend a meeting.
Secretary                    -           Safety Adviser / Safety Officer – The person who
exercises the Safety functions in the organsiation.   
Members                     -           Plant Manager


( Supervisor )              -           Maintenance Manager / Work Manager
                                    -           HR Manager
                                    -           Training Manager
                                    -           Materials Manager
                                    -           Quality Controller
                                    -           Security Manager
                                                            -           Safety Representatives – Line Functions
                                                            -           Union Representatives, etc.


Committee should not be too large; about fifteen members is a desirable maximum. The larger the committee the more difficult it is to get full attendance. The participation of Supervisors is very important. They are the key personnel as regards to safety as well as production and their active co-operation is therefore essential. It is a must that the Supervisor is kept continuously in touch with the Committee work.

2.4       Safety Committee’s Functions, Authority And Duties

Taking the long view of their broad objectives the committee should lay down a set of tasks which will lead to their achievement. The list must be realistic, bearing in maid that committee member have full-time jobs to do. It must be long-term, taking into account the fact that day to day safety matters are dealt with by management, the safety adviser and the safety representatives. And it must be within the resources of the committee and the capabilities of its individual members.
2.5       Specific Functions

The safety committee should be involved in every possible way in developing the means of bringing employees more into Occupational Safety and Health issues. It should be involved in, for instance :

1.            Making the contents of the safety policy and the extent to which the policy is being applied known to all the employees;
2.            The development of work safety rules and safety systems of work.
3.            Publishing agreement and rules for the provision and wearing of protective clothing and equipment.
4.            Studying reports and considering publishing their contents.
5.            Review of all lost time accident and appraise Safety and Health aspects of plant operations based on accident reports and statistics.
6.            To provide directions in safety aspects with respect to plants operation e.g. broad guidelines on safety policies.
7.            To create, and maintain safety consciousness among employees.
8.            To supervise the functioning of safety Operations Committee by reviewing minutes and provide guidance.


    1. Frequency Of Meeting

The frequency of meetings will depend on the work which the committee has to do and this in turn depends on the circumstances of the individual establishment, the size of the size of the workforce, the kind of work and the degree of inherent risk.

Too frequent meeting will waste time on matters already discussed because there has been insufficient time between meetings to take the necessary action. Moreover, busy people find it difficult to attend meeting too often, problem which can result in disruption of their work or insufficient number to form a quorum, so that decisions have to be postponed.


On the other hand, if meeting are spaced too far apart the people who have been deputed to take action will find themselves working in isolation without sufficient guidance from the committee, while the other committee members will feel remote from the action and tend to lose touch.

Recommended timing to convene Safety Committee Meetings at list once in three (3) months.

The Safety Committee programme should be arranged well in advance and notice of the dates of meeting published where all employees can see them.

Not less then a week before the meeting of the Safety Committee, each member should be sent a copy of the agenda, drawn up by the Committee Secretary.


3.0       Safe System of Work

A safe system of work is a formal procedure which results from systematic examination of a task in order to identify all the hazards. It defines safe methods to ensure that hazards are eliminated or risks minimised.

3.1    When Is A Safe System Needed?

Many hazards are clearly recognisable and can be overcome by physically separating people from them, e.g. by using guarding on machinery.

A safe system of work is needed when hazards cannot be physically eliminated and some element of risk remains. You should apply these principles to routine work as well as to more special cases such as:

·                     Cleaning and maintaining operations
·                     Making changes to work layouts, materials used or working methods
·                     Employees working away from base or working alone
·                     Breakdowns or emergencies
·                     Controlling activities of contractors on your premises
·                     Loading, unloading and movements or vehicles


3.2    Assessing The Task

Assess all aspects of the task and the risks which it presents. Hazards to health as well as to safety should be considered.

Take account of :

·                     what is used, e.g. the plant, the substances, potential failures of machinery, toxic hazards, electrical hazards, design limits, risk of inadvertently operating automatic controls.

·                     Who does what, e.g. delegation, training, foreseeable human errors, short cuts, ability to cope in an emergency.

·                     Where the task is carried out, e.g. hazards in the workplace, problems caused by weather conditions or lighting, hazards from adjacent processes or contractors, etc.

·                     How the task is done, e.g. the procedures, potential failures in work methods, lack of foresight of infrequent events.

3.3       Identifying The Hazards

When you have assessed a task, you should sport its hazards and weigh up the risks.
Where possible you should eliminate the hazards and reduce the risks before you rely upon a safe system of work.

3.4       Defining Safe Methods

Your safe system of work may be defined orally, by simple written procedure or in exceptional cases by a formal permit to work scheme.
·                     Consider the preparation and authorisation needed at the start of the job.
·                     Ensure clear planning of job sequences.
·                     Specify safe work methods.
·                     Include means of access and escape if relevant.
·                     Consider the tasks of dismantling, disposal etc at the end of a job.

Involve the people who will be doing the work. Their practical knowledge of problems can help avoid unusual risks and prevent false assumptions being made at this stage.

In those special cases where a permit to work system is needed, there should be a properly documented procedure. It is important that everyone understands which jobs need a formal permit to work. Permits to work should:

1.            define the work to be done;
2.            say how to make the work area safe;
3.            identify any remaining hazards and the precautions to be taken;
4.            describe checks to be carried out before normal work can be resumed; and
5.            Name the person responsible for controlling the job.

Jobs likely to need a permit to work system include:
·                     working in confined spaces
·                     hot work on plant containing flammable dusts, gases or residues of these
·                     cutting into pipe work containing hazardous substances
·                     work on electrical equipment


3.5       Implementing The System

Your safe system of work must be communicated properly, understood by employees and applied correctly. They should be aware of your commitment to reduce accidents by using safety systems of work.

Ensure that supervisors know that they should implement and maintain those systems of work and that employees, supervisors and managers are all trained in the necessary skills are fully aware of potential risks and the precautions they need to adopt.

Stress the need to avoid short cuts. It should be part of a system of work to stop work when faced with an unexpected problem until a safe solution can be found.


3.6       Monitoring The System

Monitoring means periodically checking:
·                     that employees continue to find the system workable;
·                     that the procedures laid down in your system of work are being carried out and are effective; and
·                     that any changes in circumstances which require alterations to the system of work are taken into account.


FIVE STEPS TO A SAFE SYSTEM OF WORK

ASSESS THE TASK

IDENTIFY THE HAZARDS

DEFINE SAFE METHODS

IMPLEMENT THE SYSTEM

MONITOR THE SYSTEM


4.         Good Housekeeping

Good housekeeping is a basic requirement of safe working. Keeping the workplace clean and tidy depends upon everyone playing a part.

4.1  Action Points

4.1.1      Access

a.            Passageway, work areas, stairways must be kept clear of litter and obstructions.

b.            Safety signs must be clear and undamaged.

c.            Any damaged or dangerous floors, passageways, shelves or steps through unclean spillages should be reported at once. They could be a health, fire tripping or slipping hazard.

d.            During floor cleaning warning notices must be kept prominently in view; no trailing or unmarked electric leads or cables across access ways.

4.1.2      Clearing – Up

a.            A workbench is a place to work at, not a storage bin or personal clock room. Any equipment or materials when not in use should be put away.

b.            All scrap and waste must be put into the appropriate bins or sacks and removed daily.

c.            The job is not finished until you have put the tools always and tided up.

4.1.3              Fire

a.            Fire appliances and escape routes unobstructed, and fire doors must be kept shut.

b.            Combustibles must be properly stored, not put on open shelves or benches.

c.            Rubbish must not be left lying about.

4.1.4              Monitoring

Report to your supervisor any hazard you observe but cannot deal with yourself, or which may recur.

4.1.5              Conclusion
Eliminate  50% of risks at work by making tidiness a habit.


5.    Understanding Of Safety Signs

6.    Tools And Equipment

6.1             Different type of tools
Every year there are many industrial accidents resulting from the use of tools and equipment. These include manual and power-driven tools.
Many industrial injuries result from the use of equipment not suited to the particular purpose. Some examples: adjustable spanners being used instead of ring or open-ended spanners to tighten nuts; tin snips of pliers with the handles bent toward each other at the ends; pipe wrenches with worn jaws; hammers with cracks in the handles, etc.

POINT TO REMEMBER
·         You can prevent accidents by using the right tools for the job. They should be of good quality and well maintained. Replace tools before they wear out.

                     Impact tools (hammers, chisels, sledge-hammers. etc.) should be  made of iron of the correct hardness. Burrs, which can fly off and cause injury, should be removed.
Sharp-edged tools (knives, axes, saws, etc.) should be kept sharp. The risk of injury is greater from blunt tools than from sharp ones. Tools which are carried around must be carried in such a way that they cannot cause injury.
Power-driven hand tools involve greater risks than hand-operated or stationary tools. Guards protecting saw blades and grinders must never be removed or swivelled out of the way.

6.2             Regular inspection
All tools and work equipment must be inspected regularly. The supervisor should be responsible for this continuous inspection. Inspections should be carried out according to the instructions from the supplier of the equipment. These can take the form of a check list.


7.    Electricity And Its Risks
7.1             Accidents involving electricity
Electricity can cause accident and fires.
Accidents can occur when people touch part of a unit carrying live current. Even contact with part of a unit which does not normally carry live current can lead to serious accidents if the insulation becomes faulty. Where electric arcs are formed, there is a high risk of burning and damage to eyesight. We usually distinguish between :
o   Accidents due to direct contact with electricity
o   Accidents caused by the formation of an electric arc
Electric current can also cause burns. If the insulation is faulty and there is a short-circuit, intense heat can develop, leading to the possibility of a serious fire.
Accident involving electricity are often caused by failing to ensure that the safety system is working or by failing to follow the established safety rules.
All electric installations should be serviced only by qualified electricians.

POINT TO REMEMBER
·         If an accident is caused by contact with electricity, switch off the current immediately! Failure to do so can result in death!                           Electricity can kill and should be dealt with by electricians; do not attempt to deal with power cable problems!

                      The risk of accidents is much greater when using portable motors or instruments. The insulating material used on such appliances is often subjected to heavy wear. Wires and cables are easily damaged, which can lead to short circuiting.
Should short circuiting occur in or near a container with a highly explosive mixture of gas and air, the results could be very dangerous.
Using spirits to clean an electric motor, and then starting it up immediately after cleaning can also cause an explosion or fire.
A common cause of fatal accidents is the attachment of electric cable to gas tubes.
Wires and cables should not be hung over structural elements such as nails or other metal hooks, as these can wear through the insulating cover around the wire and cables.
Dragging and coiling cable and wires can also damage the insulating covering.


7.2             Hand lamps
Hand lamps are among the most dangerous portable appliances in any workplace. Wherever possible, their use should be limited and they should be replaced by permanent lamps.
Where they must be used, it is important that the lamps used are of an approved design and that they are of the best quality. An electric hand lamp should have a framework and a hand grip made of insulating material, and have a protective basket around the bulb.

Hand lamps easily become worn and should be checked regularly to ensure that they are safe.



8.    Chemical Risks To Health
8.1          Inspection and control of chemicals
The inspection, control and handling of chemicals must be on-going in order to protect workers from injury.
We must increase our knowledge of the chemical risks in the workplace, in particular with regard to the possible long-term effects of chemicals. Many current cases of occupational cancer have their origins in working environments two or more decades ago.
This section will look at how different chemicals and different methods of handling them can affect us, and examine what measures should be taken to ensure effective protection.

8.2               Chemicals and their risks
We are exposed to chemicals in different ways, for example:
Our body has a considerable capacity to purify dangerous substances. It is primarily the liver and kidneys which do this work, but if the body is exposed to a chemical over a long period of time our defences can no longer render it harmless. The substance is then stored in the body and can cause various medical problems. Lead and cadmium are examples. It takes a long time for the body to brake down lead and, in the case of cadmium, there is no breakdown at all.

8.3           Liquids and vapours
8.3.1     Solvents
One of the most common risks to health in working life is caused by vapours and splashes from solvents. Solvents have the ability to dissolve other substances, particularly greases and fats. Furthermore, they evaporate rapidly.
When a solvent evaporates, the vapour becomes part of the air that we inhale. It then travels through the blood to the internal organs, e.g. the brain and liver. Because solvents can dissolve substances they can also affect mucous membranes and the skin. Some solvents can even be absorbed through the skin, though the majority are inhaled.
The greater a solvent’s ability to dissolve greases or fats, the greater the effect it will have on the central nervous system.
Dizziness, headaches, tiredness, reduced comprehension and prolonged reaction times are some of the symptoms of short exposure to solvents. Although these effects may disappear quickly they increase the risk of accidents.
For a long time it has been known that solvents which are absorbed and stored in the body have the same effects as an anaesthetic. In fact many solvents were previously used as anaesthetics, intoxicating people and putting them to sleep. In extreme cases the effect of the anaesthetic is loss of consciousness and death. Some of them have a very low viscosity, and the concentration in the work premises can easily rise to very high level if the solvent is not handle properly.
Vapours from solvents containing chlorine can produce phosgene and hydrogen chloride when they come into contact with hot objects.

Point To Remember!
·         The ability of a solvent to cause injury includes the following factors:
·         the viscosity of the solvent:                                                                             low-viscosity solvents spread more rapidly in enclosed areas
·         the concentration in the air :                                                                                  the amount of solvent in the atmosphere can be checked by using measuring devices
·          exposure time:                                                                                                         the longer the exposure time, the greater the risks of injurious effects
 


8.3.2      Acids and alkalis
  • Acids and alkalis are corrosive substances which can damage the skin and eyes on contact.
  • A corrosive mist can from above acids and damage the respiratory tract and lungs. Especially dangerous acids include hydrochloric, sulphuric, chromic and nitric acids.
  • Contact with the skin can cause serious burns unless large amounts of water are used to rinse the substance off.


QUESTIONS

1.   Section 16. duty to formulate Safety and Health Policy shall apply to every employer and self employed person except those who carry on an undertaking with

2.   Every employer shall establish a safety and health committee at the place of work in
      accordance with section 30 if :-

3.    What is the Function of safety and health committee ?

4.    Where are Proper place to exhibit Safety Signage?

5.    When acids or other strong liquids are used in any manufacturing process or cleaning what instructions are given to the workers?


REFERENCES:

1.    Factory and Machinery Act 1967 (Act 139)
2.    Occupational Safety and Health Act 1994 (Act 514)
3.    Safety at Work, Compiled and Edited by Badrie Abdullah, Published by Aliran Pusak Sdn Bhd

4.    Safety – Health and Working Conditions – Training Manual ISBN 91-7522-115-2