By grease

In some appHcations, eg, CVJ boots, stabili2ers are extracted from the part by grease or oil, leading to early failure. 

In general, the lubricant for open or partly enclosed gears is used on a total loss basis - it is neither recirculated nor recovered. Rates of application must be minimal, both for economy and because the accumulation of used lubricant creates problems. A distinguishing feature of this category is that separate provision must be made for lubricating the bearings - by grease cups, oil bottles or mechanical lubricators. 

Lewis, R.G. and R.W. Coutant. 1999. Determination of phase-distributed polycyclic aromatic hydrocarbons in air by grease-coated denuders. In Lane, D.A., Ed., Gas and Particle Measurements of Atmospheric Organic Compounds. Gordon and Breach Science Publishers, Amsterdam, pp. 201-231. 

All of these operations are accomplished in such a way that monomer never passes through any stopcocks, thereby avoiding contamination by grease. These operations require the use of glass breakseals and several parallel sub-manifolds on the high vacuum line. We are still unhappy about the amount of contamination that must be introduced by the flame-sealing of the final reaction vessel, but it appears to be a source of contamination with which we must live. 

If, however, a stain is not merely held by grease, but actually consists of grease, soap will not succeed in washing it away. In that case, you need a grease solvent, such as carbon tetrachloride. 

The high frequency of stains as a manifestation of damage was mentioned in Section 8.3.2. The reasons for the occurrence of stains are very numerous. Several examples of stain analysis were described in Section 8.4.4 and the typical method of approach in Section 8.3.5. LoffeT has also described the comparative selective extraction of stains with subsequent identification, preferentially with TLC and IRS. In Section 8.4.3 details of TLC analysis of stains caused by grease and oil or polyester carriers are presented. In Section 8.4.4 information is given on the identification of silicone stains and fluorocarbon deposits using IRS. The detection of silicones with fluorescence microscopy is described in the literature. ... 

Great care was taken in cleaning the TEF block and other TEF parts since they were heavily contaminated by grease and dust after fabrication. 11 the TEF parts were initially degreased in 6 M KOH for one day at room temperature after fabrication. After thorough washing with distilled water, all the Teflon items were immersed in a 1 1 mixture of HgSO and HNOj for several days. 

Water resistance alone does not ensure that grease will protect bearings or other mechanisms against moisture corrosion. Methods for assessing rust prevention by grease have been described (ASTM D-1743, IP 220). 

There are standard test methods (ASTM D 1742, ASTM D-3336,ASTM D-3337, ASTM D-3527, ASTM D-4425, IP 121) for predicting the amount of oil liberated by grease when stored in containers. In both methods the grease is supported by a wire mesh screen a weight or air pressure is applied to the top surface of the grease to accelerate oil separation. 

Fig. 31. Stock-type Hg valves. Stopcocks d may be omitted, to avoid contamination of the Hg by grease. In c, -yisafused-on glass rod, the point of which touches the glass frit from above and affords smoother downward flow of the I. Measurements in mm.

Remarks The working surface of the brake block and brake disc are not allowed to be contaminated by grease and paint. 

Check the ladder s condition before climbing. Don t use a ladder with broken or cracked rails or rungs or with rungs made slippery by grease or oil. The ladder should have safety feet and sit on a firm, level surface. 

Polycarbonates insulating and other electrical properties are excellent and remain almost unchanged by temperature and humidity conditions. One exception is arc resistance, which in PCs is lower than in many other plastics. They are generally unaffected by greases, oils, and acids. Water at RT has no effect on PCs, but continuous exposure in 65 C (150°F) water causes gradual embrittlement. They are soluble in chlorinated hydrocarbons and attacked by most aromatic solvents, esters, and ketones, which cause... 

Negative effects on stress-cracking behavior can also be caused by grease thickeners, such as metallic soaps based on lithium, sodium stearate, or lithium-12-hydroxystearate and lithium, barium, or aluminum complex soaps [965]. 

The output shaft bearing near the bottom of the dry well is usually lubricated by grease, which is less likely to leak. This feature protects both the drive from the loss of lubricant and the process from oil contamination. 

Unbonded tendons in the early systems used bundles of wires or strands, sometimes inaccurately called "cables," of various diameters and protected by grease and paper sheathing that were sometimes applied by hand. 

Lithium has a wide variety of uses, and the ones that have consumed the largest volume of lithium have varied widely over time. In the early days of the industry, batteries were the largest purchaser of lithium (as metal or chemicals), then atom bombs, followed for many years by grease as the dominant customer. Then glass and ceramics followed for 10-15 years by aluminum reduction furnaces utilizing the most lithium, and from 1990 onwards the market has become very diversified, with... 

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