Stripping tests

Shipment and Storage. The weight per gallon is 5.6 kg. MSG is shipped and stored in 55-gaHon (0.208 m ) steel dmms or 5-gaHon (0.02 m ) steel pads with a polyethylene liner. Anhydrous MSC is also corrosive toward titanium, titanium—palladium, and zirconium as measured in metal strip tests at 50°C. It is classified as a corrosive Hquid. 

The paper. strips used in the colorimetric method are impregnated with such dyes that the color of the test paper is dependent upon the pH of the medium in which the paper is placed. A standard color chart is supplied for comparison with the test strip. Test papers are available in a wide range type, which permits estimating pH to 0.5 units, and in narrow range papers, with which the pH can be estimated to 0.2 units. 

Petroleum products-corrosiveness to copper. Copper strip test... 

General rules for corrosion tests applicable to storage conditions Filiform corrosion test on steel Liquefied petroleum gases-corrosiveness to copper. Copper strip test Road vehicles-brake linings-resistance to water, saline solution, oil and brake fluid-test procedure... 

ASTM coal classification system, 6 710, 712 ASTM coating standards, 9 717 ASTM copper strip test, 23 624 ASTM D 381 chemical stability test,... 

A good approximation to pure shear is obtained with a strip test piece strained perpendicular to its length as shown in Figure 8.18. 

In principle, the shear modulus could be measured using test pieces strained in torsion and in engineering practice components, such as torsion discs and bushes, do operate in this mode. However, it is not common practice to test rubber in this manner except as a low temperature test (see Chapter 15) when a strip test piece is twisted by means of a torsion wire. The instrument traditionally used is not really accurate enough for precise measurement of modulus at room temperature but it would seem reasonable to suppose that an accurate instrument could be devised. 

Modulus can be obtained from rotational stiffness by using the formula for static torsion of a strip test piece ... 

Eisele et al24 describe the so called tear analyzer using a strip test piece with a cut in one edge cycled in tension, which can be considered the classic geometry for obtaining fracture mechanics data on rubbers. This sophisticated instrument introduces nothing new in concept but has a temperature controlled chamber and can operate at different frequencies, pre-strains and strain amplitudes, with automatic compensation for set. 

The international standard for measurement of resistivity of rubbers is ISO 185317 which details one procedure only, the potentiometric or four electrode method. The principle of the method is shown in Figure 13.2 the strip test piece has metal current electrodes clamped at each end and is... 

A more satisfactory method of measuring brittleness point, although still an arbitrary method, is that standardised in ISO 81221. A strip test piece, held at one end to form a simple cantilever, is impacted by a striker as shown in Figure 15.4. The test piece can be either a strip or a T50 dumb-bell with one tab end removed. The critical dimensions are the test piece thickness, which is given as 2 0.2 mm in each case, and the distance between the end of the grip and the point of impact of the striker. The striker radius is specified as 1.6 0.1 mm and the clearance between the striking arm and the test piece clamp is 6.4 0.3 mm. With these tolerances, the maximum surface strain in the test piece is held to almost 10% and, with the velocity of the striker controlled to between 1.8 and 2.2 m/sec, the rate of straining is constant to... 

There is an international standard, ISO 691455 which covers both the continuous and intermittent procedures plus the simplified intermittent method. Strip test pieces are used, 1 mm thick to minimise oxygen diffusion effects. Measurement at a series of temperatures is recommended and results are presented in graphical form but no consideration is given to interpretation. British Standards did not accept this revision of ISO 6914 and BS 903 Part A5256 is identical to the 1985 ISO method. The revision was not accepted in the UK because mistakes in handling comments resulted in inconsistencies. As an example, the title is now stress relaxation but a note says that this term is avoided ... 

V) 3ullet Stripping Test. In this test it is determined whether or not the jackets of bullets strip from the core during flight(Ref ll,p 42)... 

Small Arms Ammunition , TM 9-1990(1947), 42-4(Bullet Stripping Test, Bullet Penetration Test, Bullet Fit Test and Bullet Pull Test are briefly described) 12)E.Burlot, MAF 23, 185 (1949)(Detonation of ordinary expls by impact of solid projectiles launched at great velocities) 13)L.Medard ( )Cessat, MAF 23, 195-203(1949)... 

Stripping test for acid colours. Some direct or " salt dyestuffs are partly decolorised by dilute ammonia and hence might be regarded as add colouring matters. To avoid this error it is useful to add, when this test is made, a piece of mercerised white cotton. With an add dye, the cotton remains white, or is scarcely coloured, and then becomes white again when boiled a second time with dilute ammonia. 

Analytical tools to detect this particular protein rely on the use of antibodies, which specifically recognize the newly introduced protein. Two major applications are available lateral flow devices (also known as strip test or dipstick), and ELISA. An overview and an in-depth discussion of protein-based methods for the detection of grain derived from modern biotechnology can be found in the literature e.g., [3,4],... 

The dilution is paper dependent. Some papers can stand a much lower dilution, some require more. Make a toner strip test as explained earlier in this chapter. 

We have extended some of this work over the last five years by studying the effect of sugars and polymers on the stability of enzymes in the free state, in diagnostic dry strip tests and on electrodes. Our findings are reported in the rest of this paper using alcohol oxidase as a model unstable enzyme system. 

In distillation systems, the improvement of tray efficiency due to taller weirs is small (5). Koch Engineering (8), Kreis and Raab (28), and Kalbassi et al. (184) observed little effect of weir height on distillation tray efficiency for weirs 1.5 to 3 in, 1 to 2 in, and 0.5 to 1 in tall, respectively. Finch and Van Winkle (185) reported an efficiency increase of the order of 5 to 10 percent as weir height is raised from 1 to 3 in a similar increase was reported by Prado and Fair (110,144) in humidification and stripping tests. 

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