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ENA TS 98-7 : ISSUE 1 1982
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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ULTRASONIC PROBES: NORMAL (0 DEGREES) COMPRESSION WAVE PROBES FOR CONTACT TESTING
23-07-2013
12-01-2013
Details the performance required of both single and twin crystal, normal (0 deg) compression probes for contact testing whose overall crystal width or diameter lies in the range 5 mm to 28 mm and whose nominal frequency is between 1 and 5 MHz. Applies to both hard and soft faced single crystal probes, but not to single crystal probes having a plastic stand-off. In the case of twin crystal probes the Standard is limited to those which the length of each crystal does not exceed 2.5 times the width of each crystal. Probes generating short pulses, or incorporating curved crystals or acoustic lenses are not covered. Does not cover twin crystal probes whose stand-offs have been contoured for special applications, but they should meet the requirements of this Standard prior to being contoured.
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