Inorganic Chemical Analysis With The Reliability You Need, The Versatility You want. An independent Commercial Testing Laboratory in business since 1945, NSL is a leader in the chemical analysis of all types of materials. Whether the product is metallic or non-metallic, powdered, solid, or liquid, NSL can perform most chemical analyses, from less than 1-ppm to 99.999% using ICP, ICPMS, ICP-MS, DCAR-C, Wet Chemistry and Spectrographic Analysis. As a third party analytical entity, NSL is ISO/IEC 17025 and NADCAP certified providing reliable and cost effective results to customers throughout the United States and abroad. NSL Analytical looks forward to meeting your testing needs in the same professional manner.