Desert Valley Testing, 51 W Weldon Ave, Phoenix, AZ 85013, US

Recognized as the industry leader, ALS Laboratory Group's Tribology division has proudly provided independent oil, coolant, fuel, and metalworking testing services since 1961. As part of the ALS Laboratory Group, a global provider of quality testing services, our Tribology division provides the quality laboratory services our customers have come to rely on. We offer standard analysis packages and over 100 different specialized ASTM tests that cover any combination of conditions, fluids, and applications. With customers throughout the United States, Canada, and Mexico, ALS is the largest independent laboratory network in North America. ALS Laboratory Group is a diversified and highly successful international analytical organization serving a broad spectrum of industry and government. ALS operates over 100 laboratories in more than 40 countries and is one of the largest independent analytical groups in the world. Through a firm commitment to quality, innovation, and service excellence, ALS has grown from a single laboratory in Brisbane, Australia, employing 5 people in 1974, to an international organization employing more than 6, 000. ALS is part of the long-established Australian public company, Campbell Brothers Limited.