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PDF Standards API Publ 4690

A Guide for the Use of Semipermeable Membrane Devices (SPMDs) as Samplers of Waterborne Hydrophobic Organic Contaminats
standard by American Petroleum Institute, 03/14/2002

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PDF Standards API Spec 7-1 (R2021)

Specification for Rotary Drill Stem Elements, First Edition — Identical to ISO 10424-1:2004, Includes Addendum 1 (2007), Addendum 2 (2009), Addendum 3 (2011), Addendum 4 (2019), and Errata 1 (2020)
standard by American Petroleum Institute, 02/01/2006

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