21 C.F.R. § 864.8950 Russell viper venom reagent.
Title 21 - Food and Drugs
(a) Identification. Russell viper venom reagent is a device used to determine the cause of an increase in the prothrombin time. (b) Classification. Class I (general controls). [45 FR 60637, Sept. 12, 1980]
Title 21: Food and Drugs
PART 864—HEMATOLOGY AND PATHOLOGY DEVICES
Subpart I—Hematology Reagents
§ 864.8950 Russell viper venom reagent.

