Here is an older 2D if it can help you.
API Specification 2D 4th Ed. Aug. 1999 - Recommended Practice for Operation and Maintenance of Offshore Cranes
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tinku, I'm with you, although ehsanyou saw the term API specification and continued as a thread,
I propose separate threads for just API Specifications, API Bulletins, API Recommended Practices, API Standards, etc. so everyone can post and find in that category only.