What are Pyrex test tubes used for?
What are Pyrex test tubes used for?
This object is a test tube made of Pyrex glass. The test tube is one of the most commonly used pieces of laboratory ware. Test tubes are the perfect shape and size to hold small amounts of substances, usually liquid, which are then manipulated in some way, such as being placed over the flame of a Bunsen burner.
What glass is used for test tubes?
borosilicate glass
Test tubes intended for general chemical work are usually made of glass, and for its relative resistance to heat. Tubes made from expansion-resistant glasses, mostly borosilicate glass or fused quartz, can withstand high temperatures up to several hundred degrees Celsius.
What are the different types of test tubes?
Test Tube Types
| Blood Tubes | Abbreviation |
|---|---|
| Green-top tube | (HE) |
| Lavendar-top tube | (ED) |
| Light Blue-top Tube | (CI) |
| Red-top tube | (SE) |
Which vial is used for CBC?
Refrigerated EDTA blood is stable for CBC for up to 24 hours. Clotted or hemolyzed specimens are unacceptable. Check for clots by using a clean wooden applicator stick and gently swirling blood in tube.
Which vacutainer tubes for what tests?
Blood Collection Tubes
| Tube cap color | Additive | Common laboratory tests |
|---|---|---|
| Lavender or pink | Potassium EDTA | Hematology and blood bank |
| Gray | Sodium fluoride, and sodium or potassium oxalate | Glucose (especially when testing will be delayed), blood alcohol, lactic acid |
What is a test tube called?
Lab tubes are normally found in science labs in their special-purpose racks. Labs use them to store conduct and materials to be used for experiment and research purposes. Tubes are also used for heating, cooling mixing chemicals.
How are glass tubes measured?
The maximum distance between two planes perpendicular to the tubing axis, touching both tube ends. The Straightness is defined as longitudinal curvature of the tubing, and is measured at the maximum deviation from a straight line over 1000 mm length of the tube.
What is the volume of a test tube?
The small 13x100mm borosilicate glass test tubes are 100 mm tall x 13 mm with 11 mm inside diameter. Volume is approximately 9 ml.
What is standard test tube size?
150mm x 24mm
Each test tube measures approximately 6″ in length and 1″ diameter (metric: 150mm x 24mm). The arm on each test tube is approximately 1″ long with an outer diameter of 3/8″ and inner diameter of 1/8″.
What type of glass is used in laboratory glassware?
Borosilicate Glasses
Borosilicate Glasses This is among the most common type of glass found in laboratories and is used in beakers, vials, test tubes, flasks etc. This material has a low expansion that makes it suitable for a wide variety of laboratory applications.
What are the glass tubes called in science?
Beakers are the workhorse glassware of any chemistry lab. They come in a variety of sizes and are used for measuring volumes of liquid.
What color top is used for CBC?
PHLEBOTOMY SERVICES
| STOPPER COLOR | CONTENTS | USES/COMMENTS |
|---|---|---|
| Pearl Top (Plasma Preparation, “PPT”) | Separating gel and (K2)EDTA | Adenovirus PCR Toxoplasma PCR HHV-6 PCR |
| Lavender (“Purple”) | (K2)EDTA | CBC/Diff/Retic/Sed Rate, FK506, Cyclosporin, Platelet Ab, Coombs, Flow Cytometry |
What color tubes are used for which tests?
Albumin – Green, SST, or Plain Red.
What blood tube colors are for which test?
Blood Collection Tubes
| Tube cap color | Additive |
|---|---|
| Red or gold (mottled or “tiger” top used with some tubes) | Serum tube with or without clot activator or gel |
| Green | Sodium or lithium heparin with or without gel |
| Lavender or pink | Potassium EDTA |
| Gray | Sodium fluoride, and sodium or potassium oxalate |
What color tube is CBC?
The following tests may be drawn in the same LAVENDER (PURPLE) top tube: CBC, SED RATE (ESR), RETICULOCYTE Draw an extra LAVENDER for each (GLYCOHEMOGLOBIN and BNP).
What are tiny test tubes called?
Centrifuge Tube
Centrifuge Tube The centrifuge tubes can be made of glass or plastic, and resemble miniature test tubes with tapered tips.
What is the diameter of glass tube?
Standard Glass Tubing. Borosilicate glass tubing is available in over 100 sizes. These sizes range from 4mm in diameter and 0.8mm thick, to 325mm in diameter and 9.0mm thick and any size in between.
How are Pyrex tubes made?
Pyrex glass is a borosilicate glass first produced by The Corning Glass Works company. It is made by heating raw materials like silica sand and boric oxide to extremely high temperatures for extended periods of time. The molten material is then processed into different types of glassware.