ISL by PAC is a global provider of scientific apparatus and instruments for testing petroleum and petrochemical products in the lab and online. More than 20 automatic analyzers bearing the ISL brand are recognized for increasing test precision, boosting laboratory efficiency and reducing costs. ISL’s story began nearly 34 years ago when a group of engineers and scientists in the North of France, in the heart of the country’s petrochemical industry, began developing automatic instruments for use in the petroleum industry. Their facility, and the location, turned out to be an excellent proving ground for research and development of their new instrumentation.

By the mid 1970s, several quality instruments had been developed and were being marketed in Europe. It was during this period in 1975, that the ATPEM Trademark was born. The most famous of these new instruments was the Automatic Atmospheric Distillation ASTM D86 and the CPP 97, Automatic Cloud and Pour Point Analyzer, introduced in the early ’80s.


ISL by PAC is the recognized leader in the field of physical testing equipment of petroleum products. ISL by PAC technology includes self-contained automated analyzers, such as mini distillation, flash and fire point, viscosity, cold properties, evaporation loss; lubricants and asphalts testing equipment. Products also include the MicroDist Online system for distillation.

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