Koehler Instrument Company has made laboratory testing equipment since 1925, with a longstanding specialty in petroleum-related testing. From its New York operations, the company supports research and testing laboratories with instruments, technical expertise, and service for standardized laboratory methods.
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ISO 17025
ASTM Conformance
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ISO Test Method Conformance
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IP Test Method Conformance
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Gilson Company, IncThird-generation family-owned Gilson Company, Inc. has been part of the materials-testing industry since 1939, when it introduced its Testing Screen for mining and highway construction. Today, the company serves laboratories with materials-testing equipment and backs its products with experienced technical support.LEWIS CENTER, OH
XOSFounded in upstate New York in 1990, XOS makes elemental analysis instruments and X-ray optics for industrial, academic, and OEM use. Its XRF analyzers are especially associated with fast sulfur and chlorine testing in petroleum, biofuels, and sustainable aviation fuel, while its optics have even flown aboard NASA’s Perseverance rover on Mars. XOS is ISO 9001:2015 certified and operates as a Veralto company.EAST GREENBUSH, NY
Preiser ScientificSince 1924, Preiser Scientific has been a laboratory supplier serving education, government, corporate and water-testing organizations. The St. Albans company is also known for its specialty testing equipment and international distribution, reaching customers in more than 100 countries.SAINT ALBANS, WV
Taber IndustriesFounded in 1941 by engineer Ralph Taber, Taber Industries has built its name around precision measurement and the durability of its instruments. From its North Tonawanda facility, the company serves manufacturers and laboratories with materials-testing equipment, backed by in-house engineering and manufacturing and an ISO/IEC 17025:2017-accredited test laboratory.NORTH TONAWANDA, NY