API PUBL 2026:1998 pdf download

API PUBL 2026:1998 pdf download.Safe Access/Egress Involving Floating Roofs of Storage Tanks in Petroleum Service.
3.4 entry: Any work activity involving entry onto a floating roof. Entry occurs as soon as any part of an entrant’s body goes past the top of the tank preparatory to descent upon the floating roof.
a. Attendant is a trained and qualified person stationed outside a permit-required confined space to monitor the entrants and perform attendant duties in accordance with the facility’s Pem,ji Space Prngrwn.
h, Entrant is a person who is trained, qualified, and authorued to enter permit-required confined spaces,
c. Ens supervisor is a person who by training and experience is qualified and authonied to allow entry for work in permit-required and non-permit-required confined spaces and who is familiar with the tasks to he performed, the potential hazards that niay be encountered in the confined space. the safety and health requirements for work in the confined space and the facility’s Permit Space Prn,çrwn. Designated Entry Supervisors are responsible to determine that acceptable permit-required confined space entry conditions are present and met; to authorize entry into permit and non-permit-required confined spaces; to assign or act as required testers. entm,iis. attendants and rescuers: to oversee entry operations; and to terminate entry as required.
d. Tester is a person who is trained and qualifIed to operate, calibrate and adjust instruments, and conduct appropriate atmospheric testing. When descending upon floating roofs to conduct testing, the tester then becomes an entrant. A fester or an entrant can also be an entry cupervr.
3.5 exposure limit: ‘The maximum airborne concentration limits for toxic substances to which workers may be safely exposed for a prescribed time without protection (i.e.. respiratory protection). Expasure limits are usually expressed in parts per million or milligrams per cubic meter, averaged for a prescribed time. e.g., 15 minutes, 8 hours. They may also be expressed as ceiling limits, which should not be exceeded. Material safety data sheets MSI)Ss) available from employers. manufacturers or suppliers of the material should identif’ recommended etposwr limits of the product stored in the tank.
a. Permissible Exposure Limits (PELs) are exposure limits established in the Occupational Safety and Health Administration. U. S. Department of Labor regulations and are those found in the most current editions of OSHA 29 CFR 1910.1000 and chemical specific standards.
b. Hawrdous atmosphere is an atmosphere which may expose employees to the risk of death, incapacitation, impairment of ability to self-rescue, injury.