When finding the mass of air, you need to have a test tube and a stopper. Measure the mass of the test tube and the stopper together. Then, make sure that the air gets in the the tube and put the stopper on. Recheck the mass of the air, test tube, and stopper and subtract just the tube and stopper from the newly recorded mass to find the mass of air.
sst tube contain a specific type of gel that separates the blood after centrifuge.
If a grey stopper tube is collected before a lavender shield tube, silicon accrues.
Each test has a specific color tube.
red stopper/silicion coated
to displace the gas.
Tan Stopper
1/4 below stopper
The purpose of a Hemoguard stopper on an ETS tube is to prevent any blood or fluid from leaking out of the tube during transportation or handling. The Hemoguard stopper is designed to create a tight seal and provide a barrier against any potential leaks or contamination. This helps ensure the integrity of the sample and maintain the accuracy of test results.
rubber stopper burst up because it has strong afinity with hydrogen
The same thing just happened to me.I used a sheetrock screw and scewed into the stopper and it pulled right out.
Is fill volume critical in an orange tube