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Why cod higher than bod?
A COD test measures all of the chemicals in a sample which can be oxidized. A BOD5 test measures the total amount of food (or organic carbons) that bacteria can oxidize (in 5 days).A COD test result (that can be performed in about 2 hours) can be correlated to an expected BOD5 result (which takes 5 days).by rislys
How to calculate BOD value in a sample?
if unseeded, BOD = (D1-D2)/Pif seeded, BOD = ((D1-D2)-(B1-B2)f)/PD1 = DO of diluted seeded wastewaterD2 = DO of wastewater after incubationB1 = DO of diluted seed sampleB2 = DO of seed sample after incubationf = ratio of seed volume in seeded wastewater test to seed volume in BOD test on seedP = decimal fraction of wastewater sample used. (vol. of wastewater)/(vol. of dilution water plus wastewater)Maybe that helps
How to test a seed?
how to test a seed for what?
Why you use BOD5?
BOD tests the amount of oxygen that is used up in a sample due to organic matter (bacteria). The results tell us the quality of organic matter the sample. 5 days is the best time because after five days some of the bacteria changes and becomes nitrifying (feeds off nitrogen instead of oxygen). It's almost always used to test wastewater.
Will a drug test come out negative if you put a drop of water into the urine?
No, and the test will show show that water was added due to temperature change.
How do they test the etg test?
From a sample of urine.
How does sample size effect the test statistic?
The larger the sample size, the more accurate the test results.
What is a blood sample?
A blood sample is a sample given for medical purposes as a blood test.
Is it necessary that sample sizes be equal for a two sample test?
No.
Do labs keep urine after they test it?
There are single-sample tests and split-sample tests. If you've got a split-sample test, the second half of the sample goes into the freezer for six months regardless. For single-sample and the other part of a split-sample test, they retain the sample if it tests positive, but if it tests negative they normally dump it.
Where can i get sample test papers with solutions regarding bachelor of business studies entrance test?
You can get sample test papers with solutions online, however; also check your near bookstore, solved sample test papers are normally available there.
Is a DNA test dangerous for a mother or a baby?
there are different ways to do the test like blood sample or hair sample
