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Technical Discussions
01:23 Mar-29-2017
Meaning of Scanning rate in Halogen diode detector

Good day, Experts.
I have a question about ASME Boiler and Pressure Vessel Code, Sec. V.
Article 10, Leak Testing shows that determination about scanning rate of the halogen diode detector (III-1061, III-1063 and III-1075). It says that scanning rate shall not exceed that which can detect leakage rate from the leak standard (maximum leakage rate Q). Most of translations say that the scanning rate means a scanning speed.
Does it mean that any scanning speed can be adopted which that can catch a leakage rate under the Q value? (For example, where the maximum leakage rate Q determined as 1 X 10-4 std cm3/s, under the Q value is 1 X 10-5 std cm3/s, 1 X 10-6 std cm3/s … etc.)
Thank you for all your opinions and contributions

parham mirfallah
Padideh Sazan Iranian azma, Iran, Joined Sep 2014, 9

parham mirfallah

Padideh Sazan Iranian azma,
Joined Sep 2014
23:01 Aug-03-2018
Re: Meaning of Scanning rate in Halogen diode detector
In Reply to SEM at 01:23 Mar-29-2017 (Opening).

Dear sir
You talking about 2 deferent thing
In this method of halogen leak testing there is 2 definition of speed
One of them is sped of leaking likeb1*10-4
The other one is the speed of travelling of the detector on top of the subject that you testing
I hope you get your answer



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