Paper towel absorbency

Transfer the rack into Wash buffer 2 (1 x SSC). Absorb excess Wash buffer 1 with a paper towel before putting the rack in Wash buffer 2. Shake the slides for 5 min at room temperature. 

The increasing use of disposable paper towels and wipes in chemical laboratories accentuates the potential fire hazards arising from the disposal of solid oxidising agents or reactive residues into a bin containing such towels or wipes. The partially wet paper, necessarily of high surface area and absorbency, presents favourable conditions for a fire to be initiated and spread. Separate bins for paper towels etc., and chemical residues seem advisable. 

Blot off the 10% swine serum from each slide by placing the end of the slide on absorbent paper towels. 

This formulation may be sprayed onto shower doors, bath tubs and other surfaces. For best results, it should be wiped with an absorbent cloth or paper towel. It may also be used as a dip for shower heads, etc. to remove water deposits. 

Tissue specimens ideally should be placed in the fixative immediately after their removal from the body. This problem arises in studies of human tissues, for their immediate fixation is usually not feasible. If immediate fixation is not possible, the tissue must be kept cool and moist by covering it with a piece of cloth soaked in sterile, cold saline for not more than 20-30 min. During this time the specimen should not contact any dry and absorbent object such as paper, a paper towel, or gauze. To keep the paper trail of the specimen (source, time, place of collection, etc.) is no less important. 

One of the easiest substances to image in the NIR spectral region is water. It is also an important substance to be able to monitor in industries concerned with absorbent materials, such as toilet tissue, paper towels, diapers, catamenial products and fabrics. The NIR images shown in Fig. 8.1 were collected with a 320 x 240 element InGaAs FPA through a 1.4 p,m optical bandpass filter. 

Wear leather gloves, eye protection, and laboratory coat. Work from behind body shield. Avoid unnecessary heat, friction, or impact. Absorb the liquid on paper towel. Place paper towel in a beaker containing concentrated hydrochloric acid (about 100 mL of acid for each 1 g of azide). Follow waste disposal procedure. Wash spill site thoroughly with soap and water.7,8... 

Solutions. Wear protective gloves, laboratory coat, and goggles. Absorb the spill on paper towels. Place the towel in a beaker in the fume hood. Immediately pour over the spill area a freshly prepared solution of 4.7 g of potassium permanganate in 100 mL of 3 M sulfuric... 

Efflorescent crystals and crystals which absorb carbon dioxide should be quickly pressed between paper towels until as much as possible of the liquid is soaked up, and then they should be wrapped in a tight package in several layers of fresh paper towels and left in the cupboard for not more than 24 hours. The liquid is drawn by capillarity into the paper and evaporates from the outer surface, but the paper so impedes the circulation of air that water vapor does not escape, and the crystals will not effloresce unless left for more than a day. With preparations that react with carbon dioxide (such as barium hydroxide) the solution which soaks into the paper retains all the carbon dioxide which might otherwise contaminate the product. 

For small spill Wear gloves, neutralize acid/base absorb using paper towels and discard in a labeled bag. 

Colorfastness to Perspiration. Two specimens of the dress fabric were basted to separate squares of multifiber test fabric squares, according to A.A.T.C.C. Test Method 15-1975. One was immersed in an acid solution and the other in an alkaline solution for 20 min each. After wetting, the specimens were blotted between paper toweling to absorb... 

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