CWEA LAB ANALYST GRADE 1 EXAM 2023/2024 LATEST.

CWEA LAB ANALYST GRADE 1 EXAM 2023/2024 LATEST. 1. Celcius: (F-32)5/9 2. HPC media water bath: 45`C, 3hr 3. Precision: a measure of how close a series of measurements are to one another 4. Accuracy: how close a measurement is to the true value 5. Electrical Fire: unplug & sodium bicarbonate 6. analytical balance: a device for determining mass that gives highly accurate measurements 7. top loading balance: used to determine mass; not as precise as an analytical balance 8. triple beam balance: instrument used to measure mass, less sensitive than top loading 9. Coliform: Gram-negative rod-shaped bacteria normally present in the intestine; includes E. coli and other species. 10. temp and pH: temp rises, pH drops.Must measure pH within 15 min of collecting sample 11. Always add to : acid to water rometer: a device that spreads light into its different colors 13. rounding off: .5=keep # even <.4 stays the same >.6 round up