ARV 3.0 is a significant upgrade over ARV 2.091 and is now ready for release.  ARV 3.0 is compatible with Windows 11, moves to USB communication with the Y501 viscometer, and is compliant with FDA 21 CFR Part 11 Audit Trail specifications.  There are also dozens of additional improvements regarding interface design, new functions, and stability of communication with DSV system peripherals.  We are very excited to offer this new software solution, as we know that many customers are migrating to Windows 11 now.

There is summary of changes in ARV 3.0 available for download below that describes the major improvements.  Please also visit the ARV 3.0 section of the website to learn about the software upgrade.  We are happy to schedule software demonstrations via video conference.  All inquiries can be directed to the webform or contact information on the Contact Us page.  Thank you.

Dear Valued Customers,

We have posted new application notes illustrating the capabilities of HT-DSV analysis for high molecular weight polyethylene.  With recent improvements to the Relative Viscometer, DSV Application Notes #17 and #18 demonstrate the ability to measure intrinsic viscosities of up to 33 dL/g, which translates to approximately 5 million daltons.  HT-DSV offers reliable data for these molecules that are traditionally very difficult to characterize.  DSV Application Note #19 presents data for an in-house polyethylene standard that is traceable to NIST 1475 and NIST 1476.  NIST 1475 and 1476 are no longer commercially available, so a polyethylene standard that is comparable in intrinsic viscosity to the discontinued pair is very desirable.  Please inquire about how HT-DSV can work for your application.

Houston MJ Associates is proud to announce its appointment as the exclusive distributor for the CALPAS line of intelligent foreign particle analyzers in the Americas.

As an innovative company in the field of foreign particle analysis, Scigentec, the manufacturer of CALPAS, has a growing portfolio of patented technologies and extensive industry applications knowledge. This has allowed its customers to better understand how foreign particles are affecting the appearance and performance of their products.  

CALPAS is designed to analyze the foreign materials that arise unexpectedly in pellet and powder systems from petrochemical, food, plastic, and pharmaceutical industries.  A quality management system must monitor impurities from production in order to ensure high-quality outcomes.

​The addition of CALPAS to the HMJ portfolio complements our existing Linkoptik, DSV, and GPC/SEC businesses and further broadens our materials characterization capabilities, allowing us to better serve the expanding HMJ customer base.    ​

Houston MJ Associates is proud to announce its appointment as the exclusive distributor for the Linkoptik line of particle size analyzers in the Americas.

As a leading company in the field of particle size analysis by laser diffraction, Linkoptik has a growing portfolio of patented technologies and extensive industry applications knowledge. This has allowed its customers to better understand a wide variety of materials ranging from pharmaceuticals to chemicals and polymers, as well as micro and nano particle suspensions, emulsions and sprays.

The Linkoptik product line includes innovative, cutting-edge laser diffraction platforms, wet and dry sample dispersion units, spray particle size analyzers and powerful yet intuitive software. Technically advanced, reliable and robust, Linkoptik represents a tremendous value for the customer looking to measure particle size and particle size distribution.

​The addition of Linkoptik to the HMJ portfolio complements our existing DSV and GPC/SEC business and further broadens our materials characterization capabilities, allowing us to better serve the expanding HMJ customer base.    ​

Dear Valued Customers,

We have posted a DSV application note illustrating the use of HT-DSV for the molecular weight measurement of Gilsonite.  This method shows the potential of using HT-DSV for the molecular weight measurement of very complex samples like Gilsonite.  Such samples may have unknown compositions or structures that make chromatographic methods of measurement infeasible.  Solution viscosity measurements can provide valid IV values and the Mark-Houwink conversion can provide a reasonable estimate of MW.  Thank you to Mr. Dario Monte from the American Gilsonite Company for his support of this work.

Sincerely, 

​Wei Sen Wong