An alternative to the Proof Ring technique for NACE TM 0177 is the use of deadweight test frames.
This technique allows for more precise load control and measurement (using a load cell) and with less
space constraint, permits larger or longer specimens to be tested using custom designed vessels. All
standard Cortest vessels, flow controls, timer controls, and temperature controls are compatible with
the deadweight testers. They are available in single and three channel configurations. Using the
24:1 lever arm, loads of up to 10,000 lbs can be applied to the specimen.