Thursday, June 19, 2014

Implementation of HSE Standard

IMPLEMENTATION OF HSE STANDARD
Oleh : Bayu Nurwinanto

HIERARCHY OF CONTROL

HIERARCHY OF RISK CONTROL HSE

Elimination
Elimination of the hazard of a tool, the material in the phase of the work process.
Substitution
Substitution of tools, machines and materials based on results of the examination the HSE officer.
Engineering
Eliminating or reducing the severity of hazards through modification by redesigning machines, tools and materials to be used in doing the work.
Administrative Control
Reduce the duration, frequency and severity of exposure through :
  1. Changes in procedures and ways of working.
  2. Scheduling, job rotation, rest time.
Administrative control weaknesses :
success is highly dependent on,
  1. Supervision of the implementation of control systems.
  2. Behavior of workers.

PPE (Personal Protective Equipment)
PPE is clothing or equipment designed to control risks to health and safety in the workplace.
It includes :
  1.  Eye protection (goggles, safety glasses).
  2. Hearing protection (ear plugs, ear muffs).
  3.  Breathing protection (respirators, face masks, cartridge filters).
  4.  Foot protection (safety boots).
  5.   Head protection (hard hats, helmets, sun hats).
  6. Body protection (high-visibility garments, thermal wear, overalls, aprons, safety harnesses).
  7.  Substances used to protect health (sun screen).
  8.  Outer wear (reflective vests, fluoro jackets).

PPE is the least satisfactory solution to health and safety problems in the workplace, as it does not address the hazard  it only provides a shield to protect the worker.
PPE should therefore be used in addition to other control measures that provide workers with a higher level of safety, rather than replacing those measures.

HAZARD IDENTIFICATION TECHNIQUES
Many tools can be used to identify hazards in the workplace. Several methods / techniques as follows :
  1. Inspection.
  2. Survey.
  3.  Observation.
  4.  Questionnaire.
  5.  Audit.
  6. Statistics.
JOB SAFETY ANALYSIS
Definition:
A Job Safety Analysis (JSA) is a method that can be used to identify, analyze and record 1) the steps involved in performing a specific job, 2) the existing or potential safety and health hazards associated with each step, and 3) the recommended action(s)/procedure(s) that will eliminate or reduce these hazards and the risk of a workplace injury or illness.
Hazard Types:
The following hazards should be considered when completing a JSA :
  1. Impact with a falling or flying object.
  2. Penetration of sharp objects.
  3. Caught in or between a stationary/moving object.
  4. Falls from an elevated work platform, ladders or stairs.
  5. Excessive lifting, twisting, pushing, pulling, reaching, or bending.
  6. Exposure to vibrating power tools, excessive noise, cold or heat, or harmful levels of gases, vapors,  liquids, fumes, or dusts.
  7. Repetitive motion.
  8. Electrical hazards.
  9. Light (optical) radiation (i.e. welding operations, etc.).
  10. Water (potential for drowning or fungal infections caused by wetness).

Conducting the analysis :
  1. Select jobs with the highest risk for a workplace injury or illness.
  2. Select an experienced employee who is willing to be observed.  Involve the employee and his/her immediate supervisor in the process.
  3. Identify and record each step necessary to accomplish the task.  Use an action verb (i.e. pick up, turn on) to describe each step.
  4. Identify all actual or potential safety and health hazards associated with each task.
  5. Determine and record the recommended action(s) or procedure(s) for performing each step that will eliminate or reduce the hazard (i.e. engineering changes, job rotation, PPE, etc.)

Examples of Job Safety Analysis

Saturday, June 14, 2014

Basic Principles Of Risk Management

BASIC PRINCIPLES OF RISK MANAGEMENT 
Oleh : Bayu Nurwinanto

INTRODUCTION
Destination
he concept of risk management was introduced in the field of occupational safety and health in the era of the 1980s after the development of the theory of accident models of Ilci and also the rise of environmental and health issues.

The purpose of risk management is the minimization of losses and increase the chance or opportunity. When viewed in the loss to the accident theory models of Ilci, it can cut the risk management chain of events that loss, so the domino effect will not occur. Essentially risk management is the prevention of the occurrence of any loss or 'accident'.

Scope
The scope of the risk management process consists of :
  1. Determination of the context of the activities that will be managed risk,
  2. Risk identification,
  3. Risk analysis,
  4. Evaluation of risk,
  5.  Risk control,
  6. Monitoring and rethinking,
  7. Coordination and communication,
Application
Implementation of risk management must be an integral part of the implementation of the management system the company / organization. This risk management process is one step that can be done to create sustainable improvement (continuous improvement). Risk management process is also often associated with the process of decision making in an organization.

Risk management is a method that is arranged in a logical and systematic of a series of events: the establishment of context, identification, analysis, evaluation, control and communication of risk.

This process can be applied at all levels of activity, position, project, product or asset. Risk management can provide optimum benefits if applied early in the activity. Nonetheless risk management is often done at the stage of implementation or operational activities.

Definition
Consequence
As a result of an event expressed qualitatively or quantitatively, in the form of loss, pain, injury, disadvantage or benefit. It could also be a range of consequences that may occur and is associated with an event.
Cost
Of an activity, both directly and indirectly, covering a wide range of negative impacts, including money, time, labor, disruption, goodwill, political and other losses that are not clearly stated.
Incident
An event (incident) or situation, which occurs in a particular place during a particular time interval.
Sequence Analysis of Genesis
A technique that describes the range of possibilities and a series of consequences that could arise from the process of an event.
Sequence Analysis of Errors
A method for engineering system indicates that the logical combinations of various state of the system and the causes that might contribute to certain events (called the peak incidence).
Frequency
The size of the number of events an event expressed as the number of events an event within a certain time. Looks also like the possibilities and opportunities.
Danger (hazard)
Intrinsic factor is attached to something and has the potential to cause harm.
Monitoring / Monitoring
Testing, Monitoring, critical observation, or recording of the progress of an activity, action or system to identify changes that may occur.
Probability
Used as a qualitative description of the opportunities or frequency. The possibility of a specific event or outcome, measured by the ratio of specific events or outcomes to the number of possible events or outcomes. The probability is denoted by a number from 0 and 1, with 0 indicating events or results may, and 1 indicates definite events or results.
Risk Followup
The level of risk remaining after risk management is done.
Risk
Chance of something happening that will have an impact on the target. It is measured by the law of cause and effect. Measured variables are usually probability, consequence and exposure.
Proceeds R isk (acceptable risk)
The decision to accept the consequences and likelihood of certain risks.
Risk analysis
A systematics which uses the information to determine how often certain events may occur and the magnitude of the consequences.
Risk assessment
The process of risk analysis and risk evaluation as a whole. 
Risk aversion
Informed decision not become involved in a risk situation.
 Risk control
Part of risk management which involves the implementation of policies, standards, procedures, physical changes to eliminate or reduce the risk of unfavorable.
 Risk Evaluation
The process used to determine risk management by comparing the level of risk against predetermined standards, the target level of risk and other criteria.
Risk Identification
The process of determining what can happen, why and how.
Risk Reduction
The use / application of management principles and proper techniques selectively, in order to reduce the likelihood of the occurrence of an event or its consequences, or both.
Risk transfer
Delegate or transfer a load losses to a group / other parts through legal channels, agreements / contracts, insurance, and others. The transfer of risk refers to the risk of physical removal and parts elsewhere

(PRA) RISK MANAGEMENT TERMS
Destination
The purpose of this section is to describe a formal process (to be done) to execute a systematic risk management program.

The development of an organization's risk management policies and supporting mechanisms required to provide employment patterns in carrying out detailed risk management program in a project or sub-organizational level.

Risk Management Policy
Executive organization must be able to define and prove the truth of its risk management policies, including for what purpose, and commitment. Manjemen policy risk should be relevant to the context of the organization's strategies and goals, objective and in accordance with the nature of business (organization) is. Manejemen will ensure that the policy is understood, can be implemented at all levels of the organization.

Planning and Managing for Results
Management Commitment
Organizations must ensure that:
  • Risk manejemen system has to be implemented, and complies with the standards
  • Results / performance of risk management systems are reported to the management of the organization, so that it can be used in the review (review) and as a base (reference) in decision making.
Responsibility and authority
Responsibility, authority and interrelationships of members who can demonstrate and differentiate work within the risk management function should be documented in particular to the following matters :
  • Preventive measures or reduction of the effects of risk.
  • Control will be done in order to keep the risk factor at an acceptable limit.
  • Recording of factors related to risk management activities.
  • Recommended solutions corresponding predetermined manner.
  • Check the validity of the implementation of existing solutions.
  • Communication and consultation internally and externally.
Source
Organizations must be able to identify the competence requirements of human resources (HR) is required. It is therefore necessary to improve the qualification of human resources for training-training that is relevant to the job such as managerial training, and so forth.

Implementation Program
A number of steps need to be done so that the implementation of the risk management system can operate effectively in an organization. An example implementation can be found in appendix B. The steps to be performed depends on the philosophy, culture and structure of the organization.
Management Review
Review of risk management systems at specific stages, must be able to ascertain the suitability of the risk management activities that are being carried out with the standard used and the subsequent stages.

DESCRIPTION OF RISK MANAGEMENT
General
Risk management is an integral part of the management process. Risk management is part of the process of implementing the activities within the organization and consists of scientific and mutlidisiplin background, risk management is a process that runs continuously.
Key Elements
The main elements of the risk management process.
Goal setting
Establish strategies, organizational policies and risk management scope to be performed.
Risk Identifikasi
Identify what, why and how the factors that influence the risk for further analysis.
Risk analysis
Done by determining the levels of probability and consequences that will happen. Then there is the risk level is determined by multiplying the two variables (probability X consequence).
 Risk Evaluation
Comparing the level of risk with the standard criteria. Once the level of risk there is to some extent made ​​hazards management priorities. If the risk level is set low, then the risk of entering into an acceptable category and may only require monitoring without having to exercise control.
Risk Control
Doing decrease the degree of probability and consequences that exist by using a variety of alternative methods, to the transfer of risk, and others.
Monitor and Review
Monitor and review the results of the risk management system performed as well as identifying the changes that need to be done.
Communication and consultation
Communication and consultation with internal and external decision makers to follow up on the results of risk management is carried out.

Risk management can be applied at any level in the organization. Risk management can be applied at a strategic level and operational level. Risk management can also be applied to a specific project, to help the decision making process or for risk management with specific areas.
RISK MANAGEMENT

Friday, June 13, 2014

LAYER OF PROTECTION ANALYSIS (LOPA)

LAYER OF PROTECTION ANALYSIS (LOPA)
Oleh : Bayu Nurwinanto

The Layer of Protection Analysis (LOPA) technique is described in detail in The American Institute of Chemical Engineers Center for Chemical Process Safety (CCPS) publication on the subject. An overview of the technique is presented here. For more information the reader is referred to the CCPS publication, which contains a number of worked examples and extensive references.

BACKGROUND
LOPA is one of a number of techniques developed in response to a requirement within the process industry to be able to assess the adequacy of the layers of protection provided for an activity. Initially this was driven by industry codes of practice or guidance and latterly by the development of international standards such as IEC61508 and IEC61511.

In outline, IEC61508 is a standard for managing the functional safety of Electrical / Electronic / Programmable Electronic Safety Related Systems (E/E/PES). The standard is generic and can be applied to any safety related application in any industry sector. The process industry sector specific standard, IEC61511, is under development. A description of the practical application of the standard in the process industry has been presented by Charnock.

The standard uses a ‘safety lifecycle’ concept (from concept design, through hazard and risk analysis, specification, implementation, operation and maintenance to decommissioning) to address the steps to achieving functional safety in a systematic and auditable manner.

In essence, implementation of the standard involves, firstly, identification of the hazards associated with the Equipment Under Control (EUC) and the EUC control system. The EUC (a reactor, for example) comprises the plant item (vessel and pipework). The EUC control system is the basic process control system (BPCS, e.g. – DCS or PLC / SCADA). Protection systems relying on other technology (OT, i.e. – not E/E/PES) and External Risk Reduction Facilities (such as blast walls or bunds) are considered to the extent that they contribute to the
overall risk reduction in relation to a particular hazard.

A risk analysis is then conducted, to determine the risks associated with the EUC and EUC control system. If this risk is above the upper level of tolerability then the standard requires that a so-called ‘safety function’ is put in place to reduce the risk to a tolerable level. The safety function will have an associated safety integrity requirement (e.g. – a probability of failure on demand). This is a measure of the risk reduction associated with the safety function. The risk reduction for a safety function can then be allocated between E/E/PE safety-related systems, OT safety-related systems and external risk reduction facilities. Safety functions allocated to E/E/PE safety-related systems are specified in terms of Safety Integrity Levels (SILs), where a SIL is defined in terms of a target range of failure likelihood.

Several methods for performing this risk analysis have been proposed, including LOPA. LOPA has subsequently found much broader application as a relatively simple risk assessment methodology.

THE LOPA PROCESS
The LOPA process is summarised in Figure 2.1. Each of the steps involved is described in more detail in subsequent sections.

Pigure : LOPA Process


































Establish Consequence Screening Criteria
Typically LOPA is used to evaluate scenarios that have been identified in a prior hazard identification exercise using HAZOP, for example. A first step in the LOPA study is commonly to screen these scenarios, usually on the basis of consequences. In a LOPA performed for the purposes of COMAH, for example, the focus would be on major accidents to people or the environment and the analyst would seek to screen out non-major accidents.

This requires that the consequences associated with each scenario are evaluated. There are two main approaches to this:
  1.  To characterise the consequences in terms of the quantity of material released; or
  2. To calculate the outcome more explicitly, for example in terms of the area corresponding to a given fatality probability, or the expected number of fatal

The second of these approaches would normally involve estimating the likelihood of exposed persons being present in the affected area at the time of a release.

Develop Accident Scenarios
In LOPA terms, a scenario comprises a single initiating event – consequence pair.  scenario constitutes a single path through the bow-tie diagram, from left to right. It is important that the scenarios to be considered are well defined prior to proceeding with the remaining steps of the analysis.

In theory the number of scenarios arising from a single hazard identification study could be very large. In reality however, it may be possible to reduce the number of scenarios that need to be analysed in detail, for example, one of the outcomes is ‘No Consequence’, hence the number of scenarios can immediately be reduced from sixteen to twelve. Application of consequence screening as described above may eliminate further scenarios. It is also possible that some scenarios may be amenable to analysis using simpler, qualitative techniques, whilst other, particularly complex or significant scenarios may require more sophisticated study using quantitative risk analysis (QRA).