Rubber fingers

Beakers these have specific problems since they have no narrow neck which can be gripped for lifting. Small beakers of volumes up to 400 mL capacity can easily be gripped in one hand protected by an insulated glove or rubber fingers . 

Filter the recrystallization solution through the filter paper using hand protection (rubber fingers or an insulated glove) and keep the filter topped up with solution to prevent cooling. At the same time. 

Film, rubber Finger cots, rubber Flooring, rubber tile or sheet Foam rubber Fountain syringes, rubber Friction tape, rubber Fuel coils, rubber Fuel tanks, collapsible rubberized fabric Funnels, rubber Gloves e.g., surgeons , electricians , household— rubber... 

The determinations of the solubility can be carried out in various ways- One of the simplest methods, which also gives sufficiently accurate results when the temperature is not high or when the solvent is not very volatile, can be carried out in the following manner. The solid substance is finely powdered (in order to accelerate the process of solution), and placed in sufficient quantity along with the solvent in a tube carefully closed by a glass stopper the latter is protected by a rubber cap, such as a rubber finger-stall. The tube is then rotated in a thermostat, the temperature of which does not vary more than one or two-tenths of a degree, until saturation is pro-... 

Textile coating, rubber finger gloves, protective boots, anti-corrosion immersion packaging... 

Fig. 6. Pulpitis induced by an allergy to 2-mercaptobenzothiazole present in rubber finger cots utilized by this 43-year-old bank teller. Reproduced with permission of the Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, NY...

Breathable, washable and lightweight, the SITE glove retlects style, while providing comtort, durability and versatility. Vibration gel pads, thick foam padding and rubber finger protectors provide extra strength and defense from abrasion and impact. Hi-viz stretch fabric allows tor added safety in any work environment. 

The volatile components in the gasoUne were evaporated on a steam table under a weU-ventilated hood. This took approximately 10 hours. About 2-4 mL of the residue was transferred to a rubber finger cot contained in a Soxhlet thimble and the sample was refluxed in a Soxhlet extractor with toluene. The resultant toluene solution was evaporated and a capillary film prepared from the final few drops. 

Sublimation under reduced pressure. The so-called vacuum sublimation may be carried out in the apparatus of Fig. II, 45, 4. The cold finger is fitted into the larger tube by means of a rubber stopper... 

In the Agitair Rotation machine (Fig, 19-76), the impeller is a Rat rubber-covered disk with steel Fingers extending downward From the peripheiw, A rubber-covered stabilizer eliminates dead spots in the agitation zone and improves biibble-ore contact. The degree oF aeration is controlled bv regulating air volume on each cell with an individual air v alv e. Air is supplied at 10 x lO Pa (1,5 IbF/iir),... 

Solvent-borne adhesives. Although the NR polymer is inherently tacky, tack-ifying resins are generally added to improve bonding to polar surfaces. Because the solids content in these adhesives is lower than 35 wt%, they are not suitable for gap filling. The quick-grab (cements) adhesives are particular because they contain about 65 wt% rubber, and set within a few seconds under finger pressure. 

To use such pipettes, a suitable pipette filler is first attached to the upper or suction tube. These devices are obtainable in various forms, a simple version consisting of a rubber or plastic bulb fitted with glass ball valves which can be operated between finger and thumb these control the entry and expulsion of air from the bulb and thus the flow of liquid into and out of the pipette. Suction by mouth must never be used to fill a pipette with liquid chemicals or with a solution containing chemicals. 

Here we describe the strain history with the Finger strain tensor C 1(t t ) as proposed by Lodge [55] in his rubber-like liquid theory. This equation was found to describe the stress in deforming polymer melts as long as the strains are small (second strain invariant below about 3 [56] ). The permanent contribution GcC 1 (r t0) has to be added for a linear viscoelastic solid only. C 1(t t0) is the strain between the stress free state t0 and the instantaneous state t. Other strain measures or a combination of strain tensors, as discussed in detail by Larson [57], might also be appropriate and will be considered in future studies. A combination of Finger C 1(t t ) and Cauchy C(t /. ) strain tensors is known to express the finite second normal stress difference in shear, for instance. 

Seventy grams (l mole) of freshly prepared potassium meth-oxide (Note 1) and 41 g. (1 mole) of freshly purified acetonitrile (Note 2) are placed in a 5 00-ml. distilling flask. A cold-finger condenser which extends into the bulb of the flask is inserted through a rubber stopper in the neck of the flask, and a short... 

He knew more about rubber than anything else. A synthetic-rubber factory had much in common with him civilized, neat, more reminiscent of perfected nature than of Man. A rubber plant had to be absolutely clean a speck of dust mingling with the liquid rubber could mean a blowout on the highway some day. To plan a rubber factory, you did not begin with materials you put your finger to the wind, because the wind had to blow in the right direction to take off the carbide dust so that it "would not be thrown in your neighbor s face."... 

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