Koslow Scientific Company is a globally recognized source of innovative quality control & testing instruments. Since 1966 Koslow metal testers, passivation test kits, and analytical test probes provide reliable, affordable, repeatable testing results for the identification and verification of industrial and laboratory materials. 

Koslow Scientific Company has always been a family business. Founded by Dr. Ralf H. Koslow, PhD in Chemistry, is now operated by his son William Wolfgang Koslow. Dr. Koslow’s company hallmark since 1966 has been to provide affordable, easy-to-use, earth-friendly test kits and putting our customers first.  The company has now been providing these kits for more than forty years. Our kits are the result of research and testing performed in our own state-of-the-art laboratories in New Jersey.

Through the successful combination of analytical chemistry, electrochemistry, and metallurgy, Koslow Scientific has developed a broad line of kits for the rapid field identification of materials such as steels, nickel, aluminum and titanium alloys, brasses, bronzes, and space age metals.

Kits from Koslow Scientific are used throughout the world to supply timely metallurgical identification in quality control and incoming inspection departments, material storage and scrap yards, warehouses, machine and welding shops, U.S. military, and a host of other areas where rapid, simple and positive metal identification must be made.