1.1 Proper selection and use of corrosion inhibitors provides extended protection of sucker-rod threads and box cavities against the effects of corrosive well fluids that may move in and out of these box cavities, and protects the threads from galling.

1.2 This standard defines requirements for inhibited lubricants and recommends types of tests that may be used to select such materials.

1.3 This standard is not a test method. Recommended procedures for testing inhibitors in simulated environments in which they are to be used are described in Section 3. The tests may be run in simulated sweet, sour, aerated, or combination environments with simulated well fluids or actual field fluids.