AS 4024.1301-2006

1 - AS 4024.1301-2006 SAFETY OF MACHINERY - RISK ASSESSMENT-PRINCIPLES OF RISK ASSESSMENT
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE
6 - 2 OBJECTIVE
6 - 3 REFERENCED DOCUMENTS
6 - 4 DEFINITIONS
7 - 4.1 Harm
7 - 4.2 Hazardous event
7 - 4.3 Safety measure
7 - 4.4 Residual risk
7 - 5 GENERAL PRINCIPLES
7 - 5.1 Basic concept
8 - 5.2 Information for risk assessment
9 - 6 DETERMINATION OF THE LIMITS OF THE MACHINERY
9 - 7 HAZARD IDENTIFICATION
9 - 8 RISK ESTIMATION
9 - 8.1 General
9 - 8.2 Elements of risk
9 - 8.2.1 Combination of elements of risk
10 - 8.2.2 Severity (degree of possible harm)
10 - 8.2.3 Probability of occurrence of harm
11 - 8.3 Aspects to be considered when establishing elements of risk
11 - 8.3.1 Persons exposed
11 - 8.3.2 Type, frequency and duration of exposure
12 - 8.3.3 Relationship between exposure and effects
12 - 8.3.4 Human factors
12 - 8.3.5 Reliability of safety functions
13 - 8.3.6 Possibility to defeat or circumvent safety measures
13 - 8.3.7 Ability to maintain safety measures
13 - 8.3.8 Information for use
13 - 9 RISK EVALUATION
13 - 9.1 General
13 - 9.2 Achievement of risk reduction objectives
14 - 9.3 Comparison of risks
14 - 10 DOCUMENTATION
16 - APPENDIX A - METHODS FOR ANALYSING HAZARDS AND ESTIMATING RISK
16 - A1 GENERAL
16 - A2 PRELIMINARY HAZARD ANALYSIS (PHA)
16 - A3 ‚WHAT-IF™ METHOD
16 - A4 FAILURE MODE AND EFFECTS ANALYSIS (FMEA)
17 - A5 FAULT SIMULATION FOR CONTROL SYSTEMS
17 - A6 MOSAR METHOD (Method Organized for a Systemic Analysis of Risks)
17 - A7 FAULT TREE ANALYSIS (FTA)
18 - A8 DELPHI TECHNIQUE
19 - APPENDIX B - EXAMPLES OF HAZARDS, HAZARDOUS SITUATIONS AND HAZARDOUS EVENTS

Specifies principles for the procedure of risk assessment by which the knowledge and experience of the harm related to machinery is gathered together to aid in assessing risks during all phases in the life of machinery. Guidance on the information necessary to allow risk assessments to be carried out is provided, as is a brief outline of some of the techniques available.

This Standard specifies general principles for the procedure known as risk assessment, by which the knowledge and experience of the design, use, incidents, accidents and harm related to machinery is brought together in order to assess the risks during all phases of the life of the machinery (see AS 4024.1201).This Standard gives guidance on the information required to allow risk assessment to be carried out. Procedures are described for identifying hazards and estimating and evaluating risk. The intent of the Standard is to provide advice for decisions to be made on the safety of machinery and the type of documentation required to verify the risk assessment carried out.This Standard is not intended to provide a detailed account of methods for analysing hazards and estimating risk, as this is dealt with elsewhere (e.g. textbooks and other reference documents).A summary of some of these methods is given in Appendix A.

Originated as part of AS 4024.1(Int)-1992.
Previous edition part of AS 4024.1-1996.
Revised in part and redesignated as AS 4024.1301-2006.