โ Scribed by Welch, Henry
No coin nor oath required. For personal study only.
Although satisfactory methods for the potency testing of diphtheria antitoxin and tetanus antitoxin were being developed principally by Ehrlich and von Behring in Germany, authorization for
๐ SIMILAR VOLUMES
Some microbiological assays and statistical analyses of test results used by the National Center for Antibiotics Analysis are described for the establishment of offical antibiotic reference standards. Examples are given of both cylinder plate agar diffusion assays and turbidimetric assays. Formulas
## Abstract NISO (National Information Standards Organization) is developing a protocol for networked reference services. The intent of the protocol is to promote the interoperability of disparate online and networked reference systems. This session will provide an overview of the work of the commi