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Technical Discussions
Rodney
Rodney
03:01 Oct-04-2007
Leak Test

Hello!! My name is Rodney and I work for a railcar repair facility in the US. Just recently we were told that we would have to develop a sensitivity and reliability for our Leak Test Procedure. We have done countless hours of research to see what exactly we have to do to fulfill this requirement, and so have been unsuccessful. Can anyone help or point me in the right direction?


    
 
 Reply 
 
Joe Buckley
Consultant, ASNT L-III, Honorary Secretary of BINDT
Level X NDT, BINDT, United Kingdom, Joined Oct 1999, 522

Joe Buckley

Consultant, ASNT L-III, Honorary Secretary of BINDT
Level X NDT, BINDT,
United Kingdom,
Joined Oct 1999
522
08:04 Oct-04-2007
Re: Leak Test
Rodney

I'm sure some of us can help, but leak testing is a varied field.

can you advise:

What are you testing for leaks -e.g. Bodies, Doors/windows, pneumatic systems etc?

What method(s) are you using? e.g. Ultrasonic, Gas detection, pressure drop, bubbles, smoke?

Where has the requirement com from - is it a specific requirement, or simply "how can you show that you are doing what you say you are?"

All the best
Joe


----------- Start Original Message -----------
: Hello!! My name is Rodney and I work for a railcar repair facility in the US. Just recently we were told that we would have to develop a sensitivity and reliability for our Leak Test Procedure. We have done countless hours of research to see what exactly we have to do to fulfill this requirement, and so have been unsuccessful. Can anyone help or point me in the right direction?
------------ End Original Message ------------




    
 
 Reply 
 
Rodney
Rodney
04:00 Oct-05-2007
Re: Leak Test
We are testing tank cars using the bubble leak method. From my understanding, the only requirement is to simply show that we are doing what we say we are, but I am unsure what sensitivity and reliability actually are. I really appreciate any help that you can provide. Thanks!!!!!!!




    
 
 Reply 
 
parham
Consultant,
Padideh Sazan Iranian azma, Iran, Joined Sep 2014, 9

parham

Consultant,
Padideh Sazan Iranian azma,
Iran,
Joined Sep 2014
9
16:23 Apr-08-2018
Re: Leak Test
In Reply to Rodney at 04:00 Oct-05-2007 .

dear sir
as you work by BLT your sensitivity is 10^-4 as which standard that you use you can chose which method is the best for you and how much leak is accept
and how much time is need for you
in the leak testing time is important cause and also experience
if you let me much more information i can help you beter

    
 
 Reply 
 
Simon Amallraja
Simon Amallraja
07:34 Apr-10-2018
Re: Leak Test
In Reply to Rodney at 03:01 Oct-04-2007 (Opening).

You can do the test with Ultrasonic (Airborne) Leak Tester - which is available in the market. 1x10-6 std cc per second can be detected using the above.

You can contact UE Systems - they have different models and also SDT System. Sonatest too had a small one.

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

parham mirfallah

Consultant,
Padideh Sazan Iranian azma,
Iran,
Joined Sep 2014
9
15:19 Oct-14-2018
Re: Leak Test
In Reply to Rodney at 03:01 Oct-04-2007 (Opening).

Dear Rodney
As you know leak testing has many factor that is must be chek and the alertness of oprator is very important .
Some time your pressur is not enough and somtime your subject is clear but the important part is personnels patience.
By this you must do your job again acording to your procedure in the best condition .
If it is not worked you must change your procedure .in leak testing we have 12 method of testing that specialist must chose the best one that has no waste money and time.
I can help you if you let me more information
Spm.ndt.l3@gmail.com

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

parham mirfallah

Consultant,
Padideh Sazan Iranian azma,
Iran,
Joined Sep 2014
9
14:37 Jun-20-2019
Re: Leak Test
In Reply to Rodney at 03:01 Oct-04-2007 (Opening).

Dear Rodney
As you say the blt is your choice to do this test...
Assume you need this range of sensivity ..
You must know that this kind of testing need to available tuch to surface of your testing area and contact with it ... you can also use ultrasound for airbron testing in this rage ... as you beter know leak testing has various way according to sensivity and applaying way ...
Bythe way you can have my all knowledj whit no charge(free).
Best regard
Parham

    
 
 Reply 
 

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