sample assembly shall be fabricated by the contractorthe hole shall be on the downstream side and teh location of the hole shall be stamped on the flangereduce to 1/4” stainless steel tubing immediately after the3/4"globe valvesample assembly shall be installed to locate hole near center line of the process pipe for all line sizes less than 16". For lines 16" and larger,locate hole 8" inside pipe wall.sample connection must be on vertical run of line or from top of horizontal lineweld flat circular plate to end of pipe and bore hole such that bottom of hole is tangent to plate