National Association of Corrosion Engineers (NACE) International. Houston, TХ. ISBN 1-57590-086-6. 2005. 19p. This standard is presented for the use of corrosion coupons in oilfield drilling, production, and transportation operations. Oilfield operations include oil-, water-, and gashandling systems, and drilling fluids. Corrosion coupon testing consists of the exposure of a small specimen of metal (the coupon) to an environment of interest for a period of time to determine the reaction of the metal to the environment.