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API publications may be used by anyone desiring to do so. Users of this specification should consult with the appropriate authorities having jurisdiction. Classified areas may not vary depending on the location, conditions, equipment, and substances involved in any given situation. Neither API nor any of API's employees, subcontractors, consultants, committees, or other assignees make any warranty or representation, either express or implied, with respect to the accuracy, completeness, or usefulness of the information contained herein, or assume any liability or responsibility for any use, or the results of such use, of any information or process disclosed in this publication, or represent that its use would not infringe upon privately owned rights. With respect to particular circumstances, local, state, and federal laws and regulations should be reviewed. Special Notes API publications necessarily address problems of a general nature. Specification for Drill-through EquipmentĪPI SPECIFICATION 16A FOURTH EDITION, APRIL 2017 EFFECTIVE DATE: OCTOBER 1, 2017

Api 16a 4th edition pdf