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"TO CONTAIN" VERSUS "TO DELIVER"
Proper use of calibrated volumetric glassware requires that the user be
informed whether the ware is a "to contain" or "to deliver" vessel. All Kimble
calibrated ware is marked either "TC" or "TD". When the graduation line
denotes the volume contained in the calibrated vessel, the ware is marked
"TC". When the graduation line indicates the volume delivered from the vessel,
the ware is marked "TD". When a vessel is calibrated "TD", it differs from a
"TC" calibrated vessel in that a drainage holdback error, the amount of water
required to wet the inner surface of the vessel in contact with the water, is
added to the "TC" volume. The "TD" vessel then delivers the same volume as
contained in a "TC" vessel. Product descriptions in this catalog usually state
the method of calibration used. (The International Standards Organization
designation for "to contain" is "IN" and "to deliver", is "EX".)
From www.kimble-kontes.com
What else can I help you with?
Why does the liquid move into the siphon when air is removed from the siphon by the pipette?
When air is removed from the siphon by the pipette, the atmospheric pressure pushes the liquid into the siphon to fill the vacuum created. This creates a pressure difference between the two ends of the siphon, causing the liquid to flow into it.
What is the function of volumetric pipette?
A volumetric pipette is used to accurately measure and transfer a precise volume of liquid. It is designed to deliver a single, specific volume of liquid with high accuracy and precision. Volumetric pipettes are commonly used in analytical chemistry and laboratory settings where precise measurements are crucial.
Who among the following is the more accurate in measurement the pipette or the volumetric pipette?
Theoretically a graduated cylinder...but if the only graduate I've got holds five liters with graduations 100 ml apart and I'm trying to measure to the milliliter, the pipette would be more accurate.
What piece of laboratory equipment makes use of air pressure?
A pipette controller is a piece of laboratory equipment that makes use of air pressure to accurately dispense liquids from a pipette. By controlling the air pressure within the device, users can efficiently and precisely transfer liquids in scientific experiments.
How do you measure 30 micro liters with a 100 micro liter pipette that only goes down to 55 micro liters?
This is my answer, but I myself don't think it is the shortest way! :( First u take 100 micro liters, from the water drips down, u will get 45 mcl!Do it twice u will get 90 mcl !Then use the pipette with that 90mcl u will get 35 mcl ( 90 - 55 = 35). Do it 3 times more. One 35 mcl u will add 45 mcl (easily get it by 100 - 55 = 45 mcl) u will get 25 mcl (80 - 55=25 mcl). With another 35 mcl, do the same thing and u will get another 25 mcl. Add the 35 mcl left with another 2 25mcl u will get 85 mcl. And thet let use the pipette again and u will get 30 mcl as u wish (maybe it will take long time but it 's still bettter than having no solution ) :))! Thx for reading!
What is a TD calibrated pipette?
A TD calibrated pipette is a type of pipette that is calibrated "to deliver" a specific volume of liquid. This means that the pipette is designed to dispense the intended volume of liquid accurately and consistently. It differs from a TC (to contain) pipette which is calibrated to contain the specified volume but may not deliver it precisely.
What are the differences between a TD pipette and a TC pipette?
A TD pipette delivers a fixed volume of liquid, while a TC pipette can be adjusted to deliver different volumes.
What are the key differences between a TD and TC pipette, and how do these differences impact their use in laboratory settings?
The key differences between a TD (To Deliver) and TC (To Contain) pipette lie in their calibration and design. A TD pipette is calibrated to deliver a specific volume of liquid, while a TC pipette is calibrated to contain a specific volume. This means that when using a TD pipette, the entire volume is dispensed, whereas with a TC pipette, there may be a small amount of liquid left in the tip. In laboratory settings, the choice between a TD and TC pipette depends on the level of accuracy and precision required for the experiment. TD pipettes are typically used when exact volumes need to be delivered, while TC pipettes are used when the total volume is important and any remaining liquid in the tip can be disregarded. It is important to use the appropriate pipette for each specific task to ensure accurate and reliable results.
What is used of volumetric pipette?
The purpose of a volumetric pipette is to deliver a precise amount of a liquid. The label on the pipette indicates the volume delivered (e.g. 10.00 mL).
How can I efficiently deliver a precise amount of liquid using a pipette?
To efficiently deliver a precise amount of liquid using a pipette, first ensure the pipette is calibrated and set to the desired volume. Then, immerse the tip of the pipette into the liquid and slowly draw up the liquid by gently pressing and releasing the plunger. To dispense the liquid, carefully release the plunger to deliver the precise amount. Be sure to hold the pipette vertically to prevent any spills or inaccuracies.
How would you if a pipette is to contain?
To calibrate a pipette, you would need to use a balance to measure the weight of the liquid that the pipette dispenses in order to confirm it is accurate. You can then adjust the pipette if needed based on the calibration results.
What is a cheap pipette?
These are the most simple pipettes, used to extract and deliver pharmaceutical products.
What is more precise a pipette or graduated cylinder?
A pipette is generally more precise than a graduated cylinder. This is because pipettes are designed to deliver specific volumes of liquid accurately, while graduated cylinders are typically used for measuring approximate volumes.
How do you calculate inaccuracy of an pipette?
To calculate the inaccuracy of a pipette, you would compare the actual volume dispensed by the pipette with the desired volume. This can be done by using a calibrated scale and measuring the difference between the intended volume and the dispensed volume. The inaccuracy can be expressed as a percentage of the intended volume.
What is the Difference between rbc thoma pipette and wbc thoma pipette?
The difference between the two is that the RBC Diluting pipette counts the erythrocytes (Red blood cells) while the other one counts the leukocytes (White blood cells) and that the pipette (RBC) itself has a more circular body compared to WBC diluting pipete. On the other hand, WBC diluting pipette has a pointed tip unlike the RBC Diluting pipette. -Fer Philippines <3
How Do pipettes suck up water?
Pipettes use suction to draw up liquid by creating a vacuum within the pipette tip. When you press the plunger to decrease the pressure inside the pipette, the liquid is pulled up into the tip due to the difference in pressure between the inside and outside of the pipette.
What is a pipette?
A pipette is used to accurately measure the volume of a liquid in the laboratory. In the school laboratory the pipette is usually a glass bulb with a glass tube on either end. There is a line on the tube to indicate how high to fill the pipette to measure the required volume.
