法国ISL  
ISL是PAC旗下的公司。
PAC是一个国际化的制造和服务集团，提供应用在不同领域的测试设备, 有超过250种的产品，主要用于石油、石化、食品和饮料行业，同时，PAC还提供药物分析的解决方案。

PAC集合了世界上最好的油品分析仪器品牌，如Alcor, Antek, Herzog, ISL, PetroSpec和PSPI。产品线包括：闪点测定仪、粘度仪、蒸馏仪、沥青材料测试仪、低温性能分析仪、盐含量分析仪、蒸气压分析仪、实际胶质分析仪、润滑油蒸发损失测试仪、氮/硫分析仪、航空燃料热氧化安定性测定仪、微量残碳测定仪。

PAC旗下品牌产品的用户已遍及六大洲。依靠着其广大的经销商网络及优秀的销售和服务团队，PAC将继续为用户提供最出色的品牌和测试仪器。
       
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.

Easy, Versatile Testing
The staff realized that automation was the key in all development work. Adding several new automatic instruments each year, ATPEM soon became a worldwide leader in automatic petroleum testing instrumentation. In 1986, ATPEM was reorganized and became ISL. ISL soon became a worldwide leader in automatic petroleum testing instrumentation, and today is part of the PAC global family of leading analytical technologies and instrumentation serving a wide range of industries. More than 20 automatic analyzers bearing the ISL brand are recognized for increasing test precision, boosting laboratory efficiency and reducing costs, enhancing test safety, and eliminating operator subjectivity and human error.

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.