Sound Testing is a locally owned group of NFPA Certified Marine Chemists that have been serving the Maritime Industry since 1979. We are committed to providing you, our customer, with the best, most flexible 24/7 service at fair prices. With multiple chemists working in the field, you get the short response time you need for an array of maritime and general industry needs. We look forward to continuing to serve you for years to come.

We are excited to offer some of our courses online. Courses will be a combination of online modules and an interactive webinar. Please inquire if you have any training needs at this time at

We are still offering in-person classes as well. If you have any questions about our COVID-19 policy you can email our office for details. 

Call us today at 206-932-0206.

Check out our SCP resource links.

Looking for classes? Click here for Shipyard Competent Person classes and other classes.