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Topic: Beaker (glassware)

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	Beaker (glassware) - Medbib.com, the modern encyclopedia (via CobWeb/3.1 planetlab2.cs.umd.edu) (Site not responding. Last check: 2007-10-09)
		Beakers are generally cylindrical in shape, with a flat bottom.
		Beakers used for holding solutions of corrosive chemicals, such as acids, should be made of Teflon or other materials resistant to corrosion.
		Beakers may be covered, perhaps by a watch glass, to prevent contamination or loss of the contents.
	www.medbib.com.cob-web.org:8888 /Beaker_(glassware) (189 words)

	Beakers
		The Beaker culture (formally called the 'Beaker people' or 'Beaker folk') is the term for an archaeological culture representing a wide range of scattered peoples present in prehistoric Europe during the late Neolithic and early Bronze Age.
		Beaker remains are most concentrated in the valley of the Rhine and fringing the coasts around the North Sea where fertile agricultural land may have led to the development of Beaker culture out of the earlier cultures such as the corded ware culture.
		Given the unusual form and fabric of Beaker pottery, and its abrupt appearance in the archaeological record, the traditional explanation for the Beaker culture has been to interpret it as a diffusion of one group of people across Europe.
	www.breadlike.com /pages7/8/beakers.html (413 words)

	Glass Volumetric Apparatus
		Beakers and graduated cylinders are generally calibrated to contain while most pipets and burets are calibrated to deliver.
		If one fills the beaker so that the meniscus of the water is on the 50-mL line, then the manufacturer claims one has 50.0±2.5 mL of water contained in the beaker.
		In calibrating the beaker and graduated cylinder, what you want to know is how much liquid is contained when the glassware is filled to a given mark.
	www.sonoma.edu /Chemistry/Chem115A/volumetric.html (1690 words)

	Glassware
		In all instances, glassware must be physically clean; it must be chemically clean; and in many cases, it must be bacteriologically clean or sterile.
		Relatively clean glassware may require only a few minutes of exposure; if debris is present, such as blood clots, it may be necessary to let the glassware stand all night.
		Due to the intense corrosive action of the chromic acid solution, it is good practice to place the stock bottle, as well as the glassware being treated, in flat glass pans or pans made from lead or coated with lead, or plastic polymer pans determined compatible with the concentration of chromic acid you are using.
	www.coleparmer.com /techinfo/techinfo.asp?openlist=V,B,C&htmlfile=Caring_Glassware.htm&Title=Glassware (1145 words)

	Laboratory Equipment > Glassware
		Beakers are glass cylinders used for mixing and heating chemicals.
		While many beakers do have markings on the side indicating volume, these markings (or graduations) are only approximate values; they should not be used for measuring exact volumes.
		When placed across the top of a beaker so that it lies along the spout, stirring rods can help prevent the liquid being poured from dribbling down the outside of the container.
	mreisley.com /tutorials/equipment/glassware.html (752 words)

	Beaker Clipart (Site not responding. Last check: 2007-10-09)
		A beaker is a type of laboratory glassware whichconsists of a cylindrical cup with a notch on the top to allow for the pouring of liquids.
		Beaker is also the name of a muppet who is the hapless assistant of Dr. Bunsen Honeydew on The Muppet Show
		It is also not uncommon for largeorganizations to provide their local divisions or chapters with clip art (either physical or electronic) of their logos, mascots,and so forth, in order that local publications may have a unified appearance.
	www.vermontreview.com /edge/1133-beakerclipart.html (460 words)

	Beaker
		A beaker is a type of laboratory glassware which consists of a cylindrical cup with a notch on the top to allow for the pouring of liquids.
		Some beakers have graduated markings, to allow an easy rough measure of liquid volume.
		The beaker or ceramic cup is symbolic or "typical" of a culture recognised by archaeologists as having flourished in Europe in prehistoric times.
	www.ebroadcast.com.au /lookup/encyclopedia/be/Beaker.html (121 words)

	Beaker - Wikipedia, the free encyclopedia
		Beaker culture, the archaeological culture often called the Beaker people
		Beaker (musician), the Christian songwriter, musician, and Rich Mullins collaborator
		Beaker (muppet), the hapless assistant of Dr. Bunsen Honeydew on The Muppet Show
	en.wikipedia.org /wiki/Beaker (104 words)

	Justman Brush Company is the industry leading manufacturer of Laboratory,Scientific and Glassware Brushes
		Beaker, Jar and Cylinder brushes are twisted in wire with fl natural bristles securely fasten to a wood handle with a tufted tip.
		Beaker Brushes are available in both nylon and horse hair brush material.
		Beaker Brushes made with natural brush material, such as horse hair, can be used in static sensitive environments.
	www.justmanbrush.com (1306 words)

	Glass Beaker: Chemistry Labs for Measuring and Transferring Liquids. (Site not responding. Last check: 2007-10-09)
		Beakers are accurate to ~10%: for greater precision & accuracy, see graduated cylinders.
		These chemistry beakers are made to ISO 3819 standards.
		Glassware cannot be returned for any reason; this is for your safety and ours.
	www.indigo.com /glass/beakers.html (212 words)

	Supplies - General (Site not responding. Last check: 2007-10-09)
		This 100 ml Beaker is rugged Pyrex glassware for use in the physics lab.
		This 1000 ml Beaker is rugged Pyrex glassware for use in the physics lab.
		This 50 ml Graduated Cylinder is rugged Pyrex glassware for use in the physics lab.
	www.pasco.com /products/groups/51-326-1.html (239 words)

	Boxes 1
		To know which pieces of glassware are the most accurate.
		Some glassware are only used for carrying or mixing and it does not have to be very accurate, whereas others are used in calculating molar amounts and have to be right on the true value.
		Obtain a 100 ml beaker, a 100ml volumetric flask, a 10 ml pipette, and two 50 ml beakers (labeled 1 and 2), graduated cylinder.
	www.hsh.k12.nf.ca /chem/3202l/glassware.htm (389 words)

	beakers (Site not responding. Last check: 2007-10-09)
		Beakers are a general purpose item of glassware in the organic chem labs.
		They are used as distillation receiving containers, to hold different layers in an extraction, as reaction flasks, to heat solvent for crystallizations, as the crystallization flask, as an ice bath, etc.
		You can always exchange a beaker for one of a different size in the stockroom.
	orgchem.colorado.edu /equipment/glassware/beakers.html (75 words)

	Math Skills - Scientific Notation
		1/10 or 0.1 of the smallest division on the glassware.
		If a person needed only a rough estimate of volume, the beaker volume is satisfactory (2 significant figures), otherwise one should use the graduated cylinder (3 significant figures) or better yet, the buret (4 significant figures).
		Note: in the laboratory, a good analytical chemist always calibrates her volumetric glassware before using it by weighing a known volume of liquid dispensed from the glassware.
	www.chem.tamu.edu /class/fyp/mathrev/mr-sigfg.html (1138 words)

	Beakers, Vials, Laboratory Glassware, Bottles, Spot Dish, Weighing Boats
		Polypropylene Tri-Stir® Disposable Beakers are graduated, stackable, disposable, sterilizable and have three shallow dripless pouring spouts.
		These beakers are opaque, rigid, nonporous, smooth surfaced and resist all chemicals except molten alkali metals and fluorine.
		The Pyrex®; and Polypropylene beakers are graduated in ml.
	www.tedpella.com /beakers_html/beakers.htm (292 words)

	AM Glassware Jacketed Beakers
		The minature jacketed beaker shown opposite is manufactured from borosilicate glass and holds around 100ml in the internal beaker.
		The internal vessel is encapsulated by a water jacket with two screwthread side ports for circulating a temperature controlling medium through.
		A vast range of jacketed beakers and vessel are manufactured by AM Glassware for small or large volumes depending on your specific needs please contact us for further details.
	www.amglassware.com /jacketedbeakers.htm (111 words)

	United Nuclear - Tools, Glassware & Equipment
		They are ideal for field work where glassware is too fragile to be used or transported.
		The ring is 3" diameter and the overall length is 7".
		Use for protecting delicate glassware from direct flame contact.
	www.unitednuclear.com /other.htm (1626 words)

	Teacher Source Catalog \| Glassware
		When this Beaker Pitcher is filled with water on a hot plate, the chemical demonstrator has a ready supply of hot water which is totally visible to the students.
		The caffeine molecule is enameled in white on the side of the beaker.
		Remember, one of the advantages of heating water in an Erlenmeyer over an ordinary beaker is that water vapor condenses on the cooler sloping sides and returns to the bottom.
	www.teachersource.com /catalog/page/Gifts_Super_Motivators_Puzzles/Glassware/?id=788d0e5946db340ad92fe0c7dc9b66a1 (821 words)

	Watch glass - Biocrawler (Site not responding. Last check: 2007-10-09)
		In a chemistry laboratory a watch glass is a small concave circular piece of glass.
		It is used either as surface to evaporate a liquid or as a cover for a beaker (non-sealing, it will slow but not stop evaporation and will prevent dust from falling into the beaker but not stop gas exchanges).
		When used as an evaporation surface it can be used to closely observe precipitates or crystallization; placing on a surface of contrasting color will improve visibility.
	www.biocrawler.com /encyclopedia/Watch_glass (186 words)

	Beakers, Glass Beakers, Beaker, Glass Beaker, Chemistry Beakers, Science Beaker, Science Beaker, Bomex Beaker, Bomex ... (Site not responding. Last check: 2007-10-09)
		Beakers, Glass Beakers, Beaker, Glass Beaker, Chemistry Beakers, Science Beaker, Science Beaker, Bomex Beaker, Bomex Beakers, Measuring Beaker, Graduated Beakers, Laboratory Beaker, Chemistry Beaker
		The glass beakers are made from sturdy borosilicate glass with a low coefficient fo expansion.
		Excellent choice for schools and laboratories: beaker, glass beaker, science beaker, bomex beaker, measuring beaker, laboratory beaker, chemistry beaker, graduated beaker, chemical beaker, etc.
	www.novatech-usa.com /s.nl/sc.2/category.408/.f?partner=GOOGLE (356 words)

	GLASSWARE (Site not responding. Last check: 2007-10-09)
		250 ml low-form beaker made from the finest high-temperature borosilicate glass and carefully packed to arrive safely.
		The 400 ml size graduated beaker is standard labware for multiple applications.
		Classic Ehrlenmeyer flask is the lab glassware workhorse and has multiple applications in alchemical labwork.
	www.parachemistry.com /glassware.htm (812 words)

	Alconox, Inc. - College of American Pathologists (CAP) Residue Detection Method
		Using a piece of cleaned glassware you wish to test, fill about 10% full with source water (10ml into 100ml beaker).
		If you want to avoid contaminating clean glassware, dump the glassware testing solution into a triple rinsed beaker and then add the non-buffering salt prior to measuring the pH with a meter.
		You should test approximately 1% of large frequently washed quantities of glassware and 5% of smaller quantities of less frequently washed glassware, and you should rotate the types of glassware tested.
	www.alconox.com /static/section_top/gen_cap.asp (653 words)

	Laboratory Glassware, Lab Glassware, Chemistry Glassware, Scientific Glassware, Graduated Cylinders, Glass Beakers, ... (Site not responding. Last check: 2007-10-09)
		BOMEX beaker units, erlenmeyer flasks, filter flasks, funnel tools and BELLWETHER burets are manufactured according to international standards.
		Laboratory glassware used in their manufacture is BJTY; it is a type of hard borosilicate glass which is widely used to produce a comprehensive range of labware and science equipment throughout the world.
		These laboratory glassware burets are ideal for use in school and institutional laboratories.
	www.novatech-usa.com /s.nl/sc.2/category.406/.f (411 words)

	Beaker glassware (Site not responding. Last check: 2007-10-09)
		The beaker is developed at copyright indigo instruments beaker glassware email beaker glassware distribution mail lexington court, unit I.
		A comprehensive discussion of a beaker is beaker glassware made of grades and.
		Beaker glassware nancy patterson wickson, stirling primary school grades home page science questions.
	beaker.betterhomefind.net /beaker-glassware.html (943 words)

	Beaker, Chemistry Flask, Graduated Cylinder, Measuring Beaker, Chemistry Beakers
		Beaker, Chemistry Flask, Graduated Cylinder, Measuring Beaker, Chemistry Beakers
		Hi Valley Chemical: We carry a full line of glassware from beakers to flasks.
		Stock up on glassware for your lab now!
	www.hvchemical.com /glassware.htm (108 words)

	AM Glassware Jacketed Vessels
		AM Glassware manufacture jacketed vessels and beakers in a vast range of sizes for various different applications.
		The internal vessel is encapsulated by a water jacket with two srewthread side ports for circulating a temperature controlling fluid through.
		A vast range of jacketed beakers and vessel are manufactured by AM Glassware for small or large volumes depending on your specific needs.
	www.amglassware.com /jacketedvessels.htm (96 words)

	Cleaning Volumetric Glassware (Site not responding. Last check: 2007-10-09)
		Remove flasks from beaker and rinse thoroughly with MQ water.
		Fill a glass beaker with 6N HCl (Still Overflow) and heat on hotplate overnight.
		Add MQ water to beaker with Savillex containers and heat (sub-boiling) for 24 hours.
	www.geo.arizona.edu /researchers/jruiz/Procedures/Glasswareclean.html (155 words)

	Erlenmeyer flask - Wikipedia, the free encyclopedia
		The conical shape allows the contents to be swirled or stirred during an experiment (as is required in titration); the narrow neck keeps the contents from spilling.
		An alternative way to set up the apparatus is to clamp the flask directly to the ring stand by means of holding it with a test tube clamp around the flask's neck.
		Like many other common pieces of laboratory glassware, Erlenmeyer flasks could potentially be used in the production of illegal narcotics.
	en.wikipedia.org /wiki/Erlenmeyer_flask (426 words)

	web finds\etch
		Late in the glassware cleaning procedure or early in the degreasing procedure prepare the etch solution as follows.
		Move beaker with immersed wafer to source of filtered N2(g) blow-off from L N2 dewar.
		One method: tip the beaker at 45 degrees or so, push the wafer into a position (the edge of the wafer is off the side and bottom of the beaker) then grasp the very edge of the wafer with the tweezers.
	www.jlab.org /accel/inj_group/docs/etch.htm (964 words)

	Glassware House Resources & Information - terre haute house glassware
		Glassware House Resources & Information - terre haute house glassware
		Some beakers have graduated markings, or calibrations, to allow an easy rough measure of liquid volume.
		Like a test tube or a boiling tube, a beaker can be placed over a burning flame (such as a Bunsen burner) to be heated.
	www.bizhisto.com /Biz-Retail-Companies-Ge---H/Glassware-House.html (135 words)

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