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With more than 35 years of experience, ISL is a recognized leader in the field of physical testing equipment of petroleum products. ISL technology includes self-contained automated analyzers, such as mini distillation, flash and fire point, viscosity, cold properties, evaporation loss; lubricants and asphalts testing equipment. ISL’s story began when a group of engineers and scientists in the North of France, the heart of the country’s petrochemical industry, began developing automatic instruments for use in the petroleum industry. By the mid 1970s the ATPEM trademark was born, and rapidly became a worldwide leader in automatic petroleum testing instrumentation. In 1986, ATPEM was reorganized and became ISL, and was acquired by PAC in 1999.



OptiPMD: Micro-Distillation


OptiPMD is the second generation of a state-of-the-art solution for fast and reliable distillation analysis. It is in accordance to ASTM D7345, IP 596 and in perfect correlation with ASTM D86, D1160 (B100), ISO 3405 and IP 123. OptiPMD determines the boiling range characteristics of petroleum products in less than 10 minutes, using only 10 ml of sample and it’s included in at least 10 fuel specifications.


OptiFZP: Freeze Point

Freeze Point

The next generation Freeze Point Analyzer offers proven technology used by labs worldwide. The powerful internal cooling system can measure up to -100C (-148F) without the need of an external cooling bath. The unique patented detection cell provides ultra-high accuracy with unmatched precision, while maintaining its compact footprint. The newly designed OptiFZP includes a color touchscreen and advanced electronics that allows network printing and electronic data transfer from the analyzer to a PC.


OptiMPP: Mini Cloud & Pour Point

Mini Cloud & Pour Point

Designed to provide highly accurate cloud and pour point temperatures of petroleum products during cooling, ISL's automated Mini Cloud Pour Point Analyzer is compact, portable and delivers fast results (30C in less than 30 minutes, and quick pour point correlation with no flow @ 0.1C determination). OptiMPP's powerful built-in cooling system with selectable cooling profiles requires no special programming or prior cloud and pour point measuring test knowledge.


OptiFPP: Cold Filter Plugging Point

Cold Filter Plugging Point

The next generation Cold Filter Plugging Point analyzer combines a patented built-in cooling system and highly precise detection mechanism into an ultra-compact, easy to use instrument. The ISL OptiFPP analyzer provides automated CFPP test in strict accordance to EN116 and EN16329 conditions. OptiFPP precisely controls jacket cooling and electronically controlled vacuum adjusts as the test specimen is drawn though a mesh filter, per method conditions. Once crystal formation inhibits sample flow within a set time, a CFPP value is detected, displayed and stored to memory. Detailed reports are available, showing any abnormal points, as well as sample temperature behavior during the test.

The Cloud Point Kit is available with a stainless steel and a glass temperature sensor. A complete measuring head with a probe, filter unit and pipet is also available for purchase.


OptiCPP: Cloud & Pour Point

Cloud & Pour Point

Combining a revolutionary patented built-in cooling system and highly precise detection mechanism, ISL's OptiCPP performs pour and/cloud point testing of any petroleum products, down to -95°C (-139°F), in accordance with all international standards. Its unique cooling technology eliminates external liquid connections, heat and noise. OptiCPP accommodates your unique testing requirements, because it is 100% configurable. Automation enables unattended operation with excellent reproducibility and repeatability.


Noack: Evaporation Loss

Evaporation Loss


VH1 & VH2: Houillon Viscometers

Houillon Viscometers


RB36: Ring & Ball

Ring & Ball


VIDA 40: Density

Density Meter


TVB 445: Viscometer Bath

Viscometer Bath


VIDA ML: Density (Mobile)

Density Meter (Mobile)

Check out other PAC Brands

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