What is jar testing? Jar testing is a method of simulating a full-. scale water treatment process, providing sys-. tem operators a reasonable idea of the way a. treatment chemical will behave and operate. with a particular type of raw water. Because it. mimics full-scale operation, system operators.
Read uncommitted is the weakest of the four transaction isolation levels defined in the SQL Standard (and of the six implemented in SQL Server).aving introduced read uncommitted isolation as the weakest of the available isolation levels, you should be expecting it to offer even lower isolation guarantees than locking read committed (the next highest isolation level).
1 Pure-tone average (PTA) is the average of hearing sensitivity at 500, 1000, and 2000. 2  This average should approximate the speech reception threshold (SRT), within 5 dB, and the speech detection threshold (SDT), within 6-8 dB. Examples of abnormalities include occlusion of the external auditory canal by cerumen or a mass, middle ear infection and/or fluid, perforation of the tympanic membrane, or ossicular abnormalities. 2  Pure-tone air-conduction thresholds are poorer than bone-conduction thresholds by more than 10 dB (see image below).