OpTest News


The fourth generation of the Fiber Quality Analyzer was launched in January 2013. It has been widely accepted by customers in North America and Asia. The new FQA-360 retains all the advantages of the previous model. These advantages include a non-plugging flow cell, measurement of fibers as well as shives and vessel elements, use of circular polarized light for the most precise fiber measurements. The Fiber Quality Analyzer meets all international standards and has a proven history of reliability and very low maintenance costs.


The 3mm rayon fibers above have no fines. However, air bubbles in the non-polarized part appear as fines.

The same cellulose fiber viewed with circular polarized light (left) and linear polarized light (right). The ends of the curled fiber disappear in linear polarized light.

The FQA-360 has many new features. It is more affordable, significantly faster with greater automation, has an optional 6 beaker carousel, an increased fiber length range to 15 mm, and more.

Contact us for more information.



The Large Sheet In-speck-tor (LSI-A4) now has an extended lower “physical” size range for dirt speck detection starting at 0.004 mm˛ and a lower brightness limit of >40%.  The LSI-A4 continues to meet the specification of standards Tappi T563 and ISO 5350-4 to measure visible dirt  speck according to the EBA standards.


New FQA-360 Applications:
Non-polarized Light
: The FQA-360 can measure the fiber length according to the standard  ISO 16065-2 as well as other fiber morphological properties

Contact OpTest for more information.


The following is a list of exhibits where the latest OpTest technology will be shown in the upcoming months.

  • PaperWeek 2014, Montreal, Canada,
    Feb 4 - 6

  • Tissue World Americas 2014, Miami, FL,
    Mar 28 - 31

  • Tappi PaperCon 2013, Atlanta, USA,
    Apr 29 - May 1

Come meet us and try the latest equipment.


Contact OpTest service regarding Preventative Maintenance & Product Upgrades:

Phone:   +1 613-632-5169
Fax:        +1 613-632-3744
Email:    service@optest.com



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900 Tupper St. - Hawkesbury - ON - K6A 3S3 - Canada
Phone: 613-632-5169 Fax: 613-632-3744

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