Houston-based Viscotek offers its ASTM-approved Relative Viscometer for analysis of
relative, intrinsic, inherent, specific and absolute viscosity of dilute polymer solutions such as
polyethylene terephthalate, polyvinyl chloride, polyolefins, hyaluronic acid and others. The unit
also measures the molecular weight of these solutions. The company says the viscometer provides
faster, more accurate and more precise analysis than glass tubes; and uses less than 50 percent of
the solvent required for traditional methods to complete its analysis.