About PTL Testing Laboratory, Inc.

PTL Testing Laboratory, Inc. Originated in 1977 as the Inorganic and Precious Metals division of Princeton Testing Laboratory, with Ronald McCloskey as manager. Changes at the corporate level in August 1987 resulted in PTL becoming a separate corporation which Ronald McCloskey purchased in April of 1988.The torch was passed in 1999 with Ron’s retirement, but the business stayed a family affair as sons Brian and Blair McCloskey assumed control of the company. PTL testing laboratory provides testing in all of the following categories:

Physical and Non-Destructive, Catalyst, Weld Inspection, Inorganic and Precious Metals, Sampling and Representation, Emission, Spectroscopy, Fuels, Trace Metals, Tin/Lead Solder, And a score of Miscellaneous Testing.

This Web Site is designed to give you an indication of our capabilities. We know that it does not cover everything. In fact, we are certain that we can do things even we have not thought of, simply because no one has ever asked.
One of Our Chief Assets is Versatility.

PTL has the space, technology, and the personnel to handle special projects, whether they be development of special analytical methods or bench scale process development work.

Please call on us with your needs.
The President of PTL

Ronald McCloskey, Founder

The President of PTL