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.
Approximately 25% of urine specimens containing bacteria will have a positive protein reaction as the only positive dipstick reaction. The esterase reagent is sensitive to 15 leukocytes per hpf, but the protein reagent is sensitive to 6 leukocytes per hpf.