Programmable Thermosel Set is required with both Brookfield Rotational Viscometer and Rheometer for compliance with AASHTO T 316 and ASTM D 4402 specifications. The Thermosel set allows measurement of accurate viscosities at elevated temperatures, and consists of a programmable temperature controller, reusable stainless steel sample chamber, five disposable aluminum sample chambers, extracting tools, one SC4-27 stainless steel Spindle and a manual.