Relationships of Process Hazard Analyses to Other Doe Required Hazard Analyses

D0E-HDBK-1100-2004

8.0 RELATIONSHIPS OF PROCESS HAZARD ANALYSES TO OTHER DOE

REQUIRED HAZARD ANALYSES

Because a PrHA can require a substantial investment, it is important to identify potential overlap

with other DOE hazard analysis requirements. This section provides a recommended approach

for satisfying the PSM Rule and the related requirements of a nuclear safety analysis report

(SAR).

10 CFR 830 Subpart B specifies that hazard and accident analyses be included in safety

analyses for nuclear facilities. Two nuclear SAR topics overlap with the PrHA.

Topic 5: Hazard Analysis and Categorization

Topic 11: Analysis of Accident Conditions

These topics are the subject of DOE Standard DOE-STD-1027-92 (CH-1), "Hazard

Categorization and Accident Analysis Techniques for Compliance with DOE Nuclear Safety

Analysis Reports," which provides guidance for facility managers. They are also discussed in

the DOE Standard DOE-STD-3009-94, "Preparation Guide for U.S. Department of Energy

Nonreactor Nuclear Facility Safety Analysis Reports," which describes a SAR preparation

method that is acceptable to DOE.

The requirements of DOE-STD-1027-92 (CH-1) are used as the basis for identifying the overlap

of nuclear facility safety analysis requirements with the requirements of the PSM Rule.

According to DOE-STD-1027-92 (CH-1), the level of hazard analysis required for a nuclear

facility SAR is determined by the facility's nuclear hazard classification as follows:

NUCLEAR HAZARD CATEGORY 3 FACILITIES.

Minimal hazard and accident analyses are

required. The PrHA should provide information to the safety analysis on release mechanisms,

engineering analysis, and consequence analysis.

2 FACILITIES. This category requires use of one of several

NUCLEAR HAZARD CATEGORY

analytical methods for developing qualitative accident scenarios. The choices are generally6

compatible with the requirements of the PSM Rule. If the PSM Rule requirements for PrHAs

Event Tree Analysis (ETA) is suggested by the DOE-STD-1027-92 (CH-1), but not included in the PSM

Rule. However, the PSM Rule does allow the use of "an appropriate equivalent methodology." Hence, if

ETA is to be used as the PrHA, the PrHA report must justify that the ETA method is appropriate and

equivalent to the methods listed in the rule.