scope:

1 SCOPE AND OBJECTIVES

1.1 Scope

1.1.1 This publication addresses the hazards associated with access/egress onto open-top, covered open-top and internal floating roofs of in-service petroleum storage tanks and identifies some of the most common practices and procedures for safely accomplishing this activity.

1.1.2 This publication is intended primarily for those persons who are required to perform inspection, service, maintenance or repair activities that involve descent onto floating roofs of in-service petroleum tanks.

1.1.3 This publication does not cover general considerations that apply to climbing onto petroleum storage tanks and other structures, including, but not limited to: (a) slippery or ice-covered stairways and walkways, (b) access during electrical storms, and (c) access during emergency conditions (such as to extinguish a fire or cover exposed product with foam). This publication may not apply to daily or routine tasks of tank gaugers and other personnel involved in non-permit confined spaces; however, such persons shall be trained and shall be made aware of the potential hazards described herein.

1.1.4 Preparations and precautions for entering petroleum storage tanks that have been removed from service for cleaning are covered in API Standard 2015.

1.2 OBJECTIVES

1.2.1 This publication has the following objectives:

a. To identify the potentially hazardous conditions associated with access/egress onto open-top, covered open-top and internal floating roofs of storage tanks while the tanks are in petroleum service.

b. To establish general precautionary measures appropriate to individual situations.