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!
  • Students Click Here

*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


Sox and Nox emission performance test

Sox and Nox emission performance test

Sox and Nox emission performance test


what is the American standard used for the SOx and Nox Emission performance test.


RE: Sox and Nox emission performance test

Performance test for what? Automotive products, turbines, boilers, furnaces, etc.?

See if this helps: EPA Laws & Regulations

Process Engineer, MSChE

RE: Sox and Nox emission performance test

If you're asking about a stationary source,I would recommend conducting a search for current "BACT" on your state's environmental regulatory website... this will give you a pretty good idea. Also, you cannot forget to ensure the source you're testing isn't applicable to a federal regulation with separate standards (e.g., NSPS, MACT, etc.)

RE: Sox and Nox emission performance test

For stationary sources, such as power plant boilers, these two pollutants are monitored using "mini-labs" that take samples from a stack. They report on a whole suite of compounds


These are commonly known as Continuous Emissions Monitoring Systems (CEMS), thousands are deployed worldwide and are set to monitor and report pollutant emmisions against limits that were set for that particular plant.

They report based on a variety of standardized methods as specified in clean air laws around the world, including U.S EPA 40 CFR Part 75 and 40 CFR Part 60.

Complex answer for a complex issue ....

Sr. Process Engineer

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!


Research Report: State of IoT Adoption in Product Development 2019
This research report, based on a survey of 234 product development professionals, examines the current state of Internet of Things (IoT) adoption by product design teams, its perceived importance, and what features and capabilities teams consider important when making decision about adding IoT functionality to their products. Download Now
Research Report: Augmented Reality for Maintenance, Repair and Overhaul (MRO)
The term Industry 4.0 denotes a cluster of technologies that’s poised to fundamentally reshape manufacturing and bring about a new industrial revolution. These include 3D printing (AM), the Industrial Internet of Things (IIoT), artificial intelligence (AI) and mixed reality technologies, more commonly known as virtual reality (VR) and augmented reality (AR). Download Now

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