Contact US

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

If you.... (product reliability testing question)

If you.... (product reliability testing question)

If you.... (product reliability testing question)

If you were going to be selling a product that operates outdoors, how would you test the product life/reliability?

RE: If you.... (product reliability testing question)

Operate it outdoors?

Seriously, there has to be an operating temperature range specification. If you can't cover the ends of the range with actual outdoor exposure at both ends, and/or don't have time or the logistics are too formidable, you would then buy/ build/ rent an environmental chamber to allow controlled testing at the ends of that range as a minimum. Similarly for humidity. You also have to cover precipitation of all kinds, freezing, condensation, dust, etc.

The first step then, would be read the specification defining what the product is supposed to survive, and figure out how to validate that it will survive. If you have to write the specification yourself, it takes a little longer.

Testing quickly gets expensive, in money and/or time, so you might face a business decision balancing the actual cost of the testing you are willing to do against the potential cost of warranty failures or other liabilities associated with the intended use. I personally would try to foist that off on a business person, and just try to estimate and present the alternatives to be considered.

Cheap, dirty, fast: Place a freebie in service with the Army; if they can't break it, it must be pretty good. Offered with tongue not entirely in cheek.

Mike Halloran
Pembroke Pines, FL, USA

RE: If you.... (product reliability testing question)

It really depends on what causes reliability to be low. There are many ways to accelerate particular failures, otherwise, a 10-year reliability would require 10 years of real time. You can Google "accelerated life" for some hits. Temperature is one way, using the Arrhenius equation, but that assumes you know what the activation energies of the failures are.

FAQ731-376: Eng-Tips.com Forum Policies

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close