Coating test

Water Wetting Solids. The water wetting solids test (oil-base mud coating test) indicates the severity of water wetting solids in oil-base mud [24]. The items needed are... 

Apart from the instruments described in previous paragraphs, there are others that, while not directly connected with cathodic protection as such, are extremely useful tools to a corrosion engineer. They include pH meters. Redox probes, protective-coating test instruments and buried-metal-location instruments. 

High-voltage coating-testing equipment When cathodic protection is applied to a structure which has a protective coating, the current required is proportional to the bare metal area on the structure. Thus whenever a protective coating is applied it should be of good quality, with very few failures or pin holes in it, so that the cathodic-protection system may be economic. 

Sampling for the presence of amines in condensate should be taken by drawing the condensate into silicone-coated test tubes. 

A major application of data base in our laboratories is in the tracking of coatings test exposure data. The two types of exposure records currently implemented are for exterior hardboard siding coatings, and for coil coatings. While these two classes of substrates and the coatings used for them are quite different, the basic structure of the data and reporting requirements are not. 

C.M. Neag, Coatings characterization by thermal analysis. In J.V. Koleske (Ed.), Paint and coating Testing Manual. Gardner-sward Handbook, 14th ed., ASTM, West Conshohocken, PA, 1995, Chapter 75, ASTM Man. 17 (1995) 843-845. 

In a different set of tests, medium-speed thrust washer sliding was done on Ti-6A1-4V. ty pe 6061-T6 Al, X-750, type 316 stainless steel, and X-750 samples coated with either a friable or a bonded commercial M0S2 coating. Tests were performed using ramped rotation speed, to assess friction as a function of sliding speed ramped load, to assess friction as a function of load or different atmospheres, to assess the effect of ambient gas on friction. Variable tests were ramped up and down, often more than once, to ascertain the reproducibility of the data. Sliding was stopped during... 

The zone-of-inhibition studies (Table 2) established that all of the coatings on print cloth or cotton tested prevented the colonization of S. aureus on the surface of the material, and all provided small zones of inhibition around the pieces of cloth. The contact times were the incubation periods. In the other type of experiment, in which 10-min contact times were employed, the three polymer coatings tested did provide significant reductions in the numbers of S. aureus bacteria in the suspension (Table 3) even in the short period of contact. 

Panels of high strength aluminum alloy (7075-T6) were used in this study. The panels were approximately 10 x 3 x 0.032 inch (25 x 7.5 x 0.08 cm) in size. The test environments for coating evaluation were (1) a 5% NaCl spray (fog) chamber according to ASTM Standard Method of Salt Spray (Fog) Testing (B117-73), and (2) a modified 5% NaCl/S02 spray (fog) chamber with SO gas introduced periodically - ASTM Standard Practice for Modified Salt Spray (Fog) Testing (G85-84(A4)). In the latter case, a constant spray of 5% NaCl was maintained in the chamber and SO2 was introduced for one hour four tines a day (every 6 hours)( ). Coated test panels were examined for corrosion after one- and two- eek exposure periods. 

V. King, Bactericides, Fungicides and Algaecides in Paint and Coating Testing Manual, 1995, pp. 261-267. 

Based on the N02-soot oxidation data promoted by the catalytic coating tested in Konstandopoulos et al. (2000) an R value of about 3.4 has been computed. This represents a significant enhancement. 

Common immunochemical assay formats to select from include the 96-well microtiter plates, dipsticks, coated test tubes, and membrane-based flow through devices. If the end-user is a trained technician working in a well-equipped laboratory and needs to detect and tentatively identify, for example, antimicrobial residues in hundreds of meat samples per day, a multiwell or other high-through-put format should be chosen. If, on the other hand, the end user is a quality control inspector at a milk factory who has limited time to find out whether the penicillin residues in the milk waiting to be unloaded exceed a certain level, the same reagents used in the first instance may require a more user-friendly format such as dipstick or membrane-based flow through device. 

G. D. Shay, Thickeners and rheology modifiers, in Paint and Coating Testing Manual, J. V. Koleske, ed., 14th edition of the Gardner-Sward Handbook, ASTM, Philadelphia (1995). 

Care had to be taken in the preparation of suitable homogeneous coated tubular bromide-selective electrodes from silver bromide. Maximum contact area is obtained by using a tubular electrode that is well-coated. The maximum sensitivity was obtained when the electrode was coated, tested, left in ca. 500 mg/dm3 bromide solution, recoated, etc., until maximum response was obtained, and then conditioned overnight in 20 mg/dm3 bromide solution. It was also necessary to carry out an actual test run of about ten minutes. 

PCBs in soils and wastewaters can be rapidly screened on site or in the laboratory by immunoassay technique (Chapter 1.13). Immunoassay test kits are now commercially available from many suppliers. The samples can be tested at the calibration levels of 1 to 50 ppm. The kit primarily contains antibody-coated test tubes or magnetic particles, assay diluent, PCB-enzyme conjugate, a color-forming substance, and a solution to quench the reaction. The method does not distinguish accurately one Aroclor from another. PCBs can be measured semiquantitatively by comparing the optical density of the color formed in the sample against a set of calibration standards using a spectrophotometer. 

In contrast, surface vibronic structures cannot be clearly observed in reflectivity, because the bulk vibronic structures are intrinsically very broad and so are the surface vibronic structures. However, we have detected, on the bulk vibronic structures, surface substructures which are very sensitive to the surface-gas-coating test for instance, on the b vibronic structure 1400 -cm 1 a small bump that shifted reversibly, and on the a-polarized broad reflectivity, substructures sensitive to gas coating. In both cases, it is difficult to draw quantitative conclusions on surface vibronic states, as it was for the surface structures I, II, and III on the b 0-0 bulk reflectivity spectrum. 

Table 11. Chemicalproof nature of magnesium coatings (Tested in wet state at room temperature)...

Koleske, J.V. (ed.) (1995) Paint and Coating Testing Manual, 14th edn, American Society for Testing and Materials, 100 Barr Harbor Drive, Philadelphia, PA 19428-2959, USA. 

In a typical IRMA, Tg antibodies in diluted serum specimens bind to human Tg in coated test tubes. After incubation for 1 hour at 37 C, the tubes are washed and T-labeled protein A is added. After another 1 hour of incubation at 37 C, the supernatants are washed again and the radioactivity counted. The amount of bound radioactivity in each tube is directly proportional to the amount of anti-Tg antibody present. Interassay precision is about 3% at 36 U/mL. 

MATERIALS. The polyimide used in this study, PI-2555 and PIQ-13 (polyimide isoindoloquinazolinedione) were obtained from duPont and Hitachi, respectively. PIQ coupler, an aluminum chelate primer, was also obtained from Hitachi. The primer and polyimides were applied by spin coating. Test substrates included metallized glass slides, metal sheet, and 3-inch diameter silicon wafers. 

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