Is the IV testing in the laboratory producing the right result? With polymer standards from PSL Rheotek, you can measure the performance of the plant laboratory. The standards are supplied ready weighed in small bottles and full instructions for the measurement process. Listed values are based on a significant number of measurements of the same sample carried out in the PSL Rheotek Polymer Applications Laboratory. NB: Availability of these standards varies. In this catagorie there are: Polyamide Standards; PET Standards; PVC Standards; PP/PE High Temperature Standards.