But things get much murkier when it is a task order for a defense customer issued against a civilian IDIQ. There are about a dozen protests pending at GAO right now that fall into that crossover category, where a defense agency used a GSA contract such as Alliant or OASIS to hire a contractor.
purified protein derivative (PPD). [pyoÌoÌâ²rifÄ«d]. a dried form of tuberculin used in testing for past or present infection with tubercle bacilli. This product is usually introduced into the skin during such tests and may produce a tuberculin reaction (wheal) within 48 to 72 hours.
Puristar R3-15 is a mixed metal catalyst composed of CuO and ZnO. It is used for the adsorptive removal of O2, CO, H2, and other industrial gases and liquids. Puristar R3-16. Puristar R3-16 is a high efficiency CuZn catalyst which is specifically made for the purification of polymer-grade ethylene. It also removes trace amounts of acetylene, arsine, phosphine, or sulfur that maybe present in the ethylene feed.