API STD 2015 : 2018

1 Scope
2 Normative References
3 Terms and Definitions
4 Administrative Controls and Procedures
5 Preparing the Tank for Entry and Cleaning
6 Testing the Tank Atmosphere
7 Storage Tank Hazards
8 Personal Protective Equipment
9 Tank Cleaning/Entry Personnel
10 Entering and Working Inside the Tank
11 Hot Work and Tank Repairs
12 Emergency Planning
13 Return To Service
14 Training
Annex A (informative) - Petroleum Storage
        Tank Hazards
Annex B (informative) - Vapor Freeing and
        Degassing Procedures
Annex C (informative) - Tank Cleaning and
        Floating Roof Stabilization
Annex D - (Reserved for Future Use)
Annex E (informative) - Oxygen, Combustible
        Gas, and Toxic Substance Testing
        Instruments
Annex F (informative) - Safe Tank Entry for
        Activities Other than Tank Cleaning
Bibliography

Pertains to stationary atmospheric and low-pressure (up to and including 15 psig) aboveground petroleum storage tanks used in all sectors of the petroleum and petrochemical industry, including: crude oil and gas production; refining; petrochemicals; pipelines and terminals; bulk storage and ethanol facilities.