Content Guidance for Sections of Chapter 3

DOE-STD -3009-94

Safety and Health No. 88-79897, March 1992.

29 CFR 1910.119, "Process Safety Management of High Hazardous Chemicals."

CO N T E N T G U I D A N C E F O R SE C T I O N S O F CH A P T E R 3

3.1

INTRODUCTION

This section provides an introduction to the contents of this chapter based on the

graded approach and includes objectives and scope specific to the chapter as

developed.

3.2

REQUIREMENTS

This section lists the design codes, standards, regulations, and DOE Orders that are

required for establishing the safety basis of the facility. The intent is to provide

only the requirements that are specific for this chapter and pertinent to the safety

analysis, and not a comprehensive listing of all industrial standards or codes or

criteria. SRIDS may be referenced as appropriate.

3.3

HAZARD ANALYSIS

This section describes the hazard identification and evaluation performed for the

facility. The purpose of this information is to present a comprehensive evaluation

of potential process related, natural events, and man- made external hazards that can

affect the public, workers, and the environment due to single or multiple failures.

Consideration will be given to all modes of operation, including startup, shutdown,

and abnormal testing or maintenance configurations. As is standard industrial

practice, examination of all modes of operation considers the potential for both

equipment failure and human error.

Hazard identification and evaluation provide a thorough, predominantly qualitative

evaluation of the spectrum of risks to the public, workers, and the environment due

to accidents involving any of the hazards identified. The evaluation identifies

preventive and mitigative features, including identification of expected operator

response to incidents (e.g., accident mitigation actions or evacuation) and

provisions for operator protection in the accident environment (see Table 3-1,

Action item/Comment column).

A basic flowchart for hazard/accident analysis is provided in Figure 3-1. The

major features of hazard analysis and the graded approach are captured in this

figure. Hazard identification provides the basis for the final hazard categorization

of the facility. That categorization is input for the graded approach for hazard

evaluation. Hazard Category 3 facilities are not required to perform formal,

quantitative accident analysis.

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