ISO 14121-1-2007 PDF

Full title and description

Safety of machinery — Risk assessment — Part 1: Principles (ISO 14121-1:2007). This International Standard gives principles and guidance for identifying hazards, estimating and evaluating risks, and documenting decisions related to the safety of machinery during relevant phases of the machine life cycle.

Abstract

ISO 14121-1:2007 establishes general principles for carrying out risk assessment for machinery. It describes the information needed to perform risk assessment, procedures for hazard identification, methods for risk estimation and evaluation, and guidance on documentation and decision making to verify that risk reduction objectives have been met. The standard is focused on human safety and does not apply to domestic animals, property or the environment.

General information

• Status: Withdrawn / superseded
• Publication date: September 2007 (2007-09)
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 13.110 (Safety of machinery)
• Edition / version: Edition 1, 2007 (ISO 14121-1:2007)
• Number of pages: 28

Scope

Provides principles and guidance to be used when carrying out risk assessment for machinery throughout relevant phases of the machine life cycle. It covers defining limits of machinery use, identifying hazards, estimating and evaluating risk, and documenting the risk assessment process. It is intended for application by designers, manufacturers, safety assessors and other stakeholders involved in machinery safety; it does not address environmental, property or domestic animal risks.

Key topics and requirements

• Basic concepts and definitions for risk and risk assessment relevant to machinery safety.
• Information requirements needed to perform an effective risk assessment (use, foreseeable misuse, historical data, operating conditions).
• Determination of limits of machinery (use limits, spatial and temporal limits, other constraints).
• Systematic hazard identification techniques and methods.
• Risk estimation: assessment of severity and probability (elements of risk and aspects to consider).
• Risk evaluation criteria and decision-making principles to determine acceptability or need for risk reduction.
• Guidance on documenting the risk assessment and on verifying that risk reduction measures are adequate.
• Emphasis on iterative process: eliminate hazards where possible, then reduce remaining risks by protective measures, and finally provide information for safe use.

Typical use and users

Used by machinery designers and manufacturers to inform safe design; by safety engineers and risk assessors to conduct documented risk assessments; by conformity assessors and testing bodies as background for compliance evidence; and by technical committees and standards writers as foundational principles for machine-specific safety standards.

Related standards

ISO 14121-1:2007 was developed within ISO/TC 199 and replaces ISO 14121:1999. It has been consolidated and superseded by ISO 12100:2010 (Safety of machinery — General principles for design — Risk assessment and risk reduction). National and regional equivalents and related documents include EN ISO 14121-1:2007 / BS EN ISO 14121-1:2007 and the consolidated EN ISO 12100 series. The standard is used alongside machine-specific (type-B and type-C) safety standards and regulatory requirements such as the Machinery Directive.

Keywords

risk assessment, machinery safety, hazard identification, risk estimation, risk evaluation, risk reduction, safety of machinery, ISO 14121-1, ISO/TC 199, design safety

FAQ

Q: What is this standard?

A: ISO 14121-1:2007 is an International Standard titled "Safety of machinery — Risk assessment — Part 1: Principles" that provides principles and guidance for performing risk assessments on machinery.

Q: What does it cover?

A: It covers information needed for risk assessment, methods for identifying hazards, procedures for estimating and evaluating risk, determining machine use limits, and documentation and decision-making related to machinery safety. It focuses on risks to people, not on property, domestic animals or the environment.

Q: Who typically uses it?

A: Designers, manufacturers, safety and reliability engineers, risk assessors, conformity assessment bodies, and standards developers dealing with machinery safety and compliance.

Q: Is it current or superseded?

A: ISO 14121-1:2007 has been withdrawn and superseded by ISO 12100:2010, which consolidated ISO 14121-1 and related documents into a single standard for risk assessment and risk reduction for machinery.

Q: Is it part of a series?

A: ISO 14121-1 is a part (Part 1) of the ISO 14121 family (risk assessment for machinery) historically; the principles it contained were later consolidated into ISO 12100. Earlier versions include ISO 14121:1999.

Q: What are the key keywords?

A: Risk assessment, hazard identification, risk estimation, risk evaluation, risk reduction, machine life cycle, machinery safety.