{"product_id":"l51799-in-situ-evaluation-of-directional-drill-bore-coating-quality-1","title":"L51799 In-Situ Evaluation of Directional Drill-Bore Coating Quality","description":"\u003cp\u003eThe objectives of this project were to: (1) examine known techniques of evaluating coating quality on buried pipe; (2) select one or more of these methods for in-situ testing; (3) develop a field test procedure that a corrosion technician can follow using equipment typically at his or her disposal; and (4) evaluate the feasibility of using this procedure both before and after the bored pipe is tied in. Two methods - coating conductance and current requirements - were tested on epoxy-coated pipe samples which were back filled with soil having a different resistivities. Both test methods proved successful; therefore, a field test procedure was developed that incorporates both. However, this procedure cannot be used when the pipe is tied-in because of accuracy limitations of existing current measurement instruments (unless the pipe is tied-in using isolating fittings).\u003c\/p\u003e\n\n\u003cp\u003eIncludes spreadsheets to aid the assessment calculations and associated examples.\u003c\/p\u003e","brand":"PRCI Store","offers":[{"title":"Default Title","offer_id":44367593111630,"sku":"18577","price":1395.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/prci-store.myshopify.com\/products\/l51799-in-situ-evaluation-of-directional-drill-bore-coating-quality-1","provider":"PRCI Store","version":"1.0","type":"link"}