Test criterion

Interpretation If the alternate hypothesis had been stated as //i Xmean is different from /r, a two-sided test is applied with 2.5% probability being provided for each possibility Xmean smaller than p" resp. Xmean larger than /i . Because 1.92 is smaller than 2.45, the test criterion is not exceeded, so Hi is rejected. On the other hand, if it was known beforehand that Xmean can only be smaller than p, the one-sided test is conducted under the alternate hypothesis H Xn,ean smaller than p in this case the result is elose, with 1.92 almost exceeding 1.94. 

Figure 2. Light stability of a high-solids, one-coat silver metallic paint based on a two component polyurethane. Test criterion gloss retention QUV irradiation. (HALS) Bis-(2,2,6,6-tetramethyl-piperidinyl-4)sebacate (UVA) 2-(2 -hydroxy-3, 5 -di-tert-amylphenyl) benzotriazole.

Janssen, C.R., M.D. Ferrando, and G. Persoone. 1994. Ecotoxicological studies with the freshwater rotifer Brachionus calyciflorus. IV. Rotifer behavior as a sensitive and rapid sublethal test criterion. Ecotoxicol. Environ. Safety 28 244-255. 

The multivariate test criterion uses the ratio between the two matrices B and W. A multivariate Fexp can be computed in a manner similar to the univariate Fexp ... 

Procedure Transfer the entire sample into a plastic beaker. Place the electrode into the beaker, allow the solution to equilibrate for 5 min with stirring, and read the potential, in millivolts. Remove and rinse the electrode(s) with water. In another beaker, using a pipet, add 50 mL of the Buffer Solution followed by 50 mL of the Fluoride Limit Solution that best reflects the fluoride limit of the sample. Place the electrode in the beaker, equilibrate for 3 min, and read the potential in millivolts. If the potential of the Fluoride Limit Solution is less than that of the sample, the sample passes the test criterion for maximum acceptable fluoride level limit. 

These metals are considered hazardous under the Resource Recovery and Conservation Act of 1987 (RCRA) [4]. The RCRA metals occur in chemical forms that are soluble or insoluble in groundwater. The soluble species are of concern from the dispersibility viewpoint. Hence, the test criterion to evaluate whether a given waste stream needs stabilization prior to disposal is based on how much a given hazardous metal dissolves in water in a standardized test. This EPA test, called the Toxicity Characteristic Leaching Procedure (TCLP) [5], is used not only to identify which waste streams need treatment, but also to assess whether the treated waste form is suitable for disposal. This test also sets limits on how little of a hazardous metal is permitted to leach out from a given waste to pass the waste for disposal. If the test determines that the waste is not suitable for safe... 

For values of m no larger than 10, one can nse a Q test criterion (see Chapter II) for considering the rejection of one ontlying datnm jy. In the present context, the qnantity Q is defined by... 

Recently, Diard et al. studied the effects of electrochemical non-linearities on impedance measurements using an FRA. They derived theoretical expressions for the error in impedance measurements using the odd harmonic test criterion.Measurements of the fundamental and third... 

Test Criterion Validity of the test positive control Biodegradability of the material sample test... 

Test Criterion of Concrete Used in Hydraulic Engineering (SDI05-82). Beijing Chinese Water Conservancy and Hydro-electric Power Publishers. [In Chinese]... 

Decide what test procedure will be followed, that is, what test criterion (statistic) will be calculated. 

It is difficult to find a general test criterion for checking the surface purity of a surfactant solution. The analysis of the time dependence of the surface tension seems to be the most suitable method for this purpose. Typical cases of the time dependence are shown in Fig. 1 starting from the creation of a fresh surface. The surface tension can be measured with the applied method from time t . Case a is typical for dilute surfactant solutions containing very surface active impurities where both the surfactant and the contaminants decrease the surface tension on a similar time scale. In case b the surfactant and the impurities equilibrate on different time scales and the contaminants adsorb slowly in the experimental time window. Finally, curve c shows the case when the contaminated system reaches its equilibrium before to-... 

Table 7.1 Biodegradability of selected pharmaceuticals from various classes in different OECD tests. Criterion for ready biodegradability in 301 tests and inherent biodegradability in 302 tests is >60%. Reproduced from ref. 21 with kind permission by Springer.

Although the phenomenon of local embrittlement was first observed in PE-HD, it rarely occurs in the PE-HD materials currently in use. Therefore, brittle fracture occurring in films or thin plates bent 180° is often used instead as a test criterion for the aging of polyethylene the exposure temperature or oven storage here is typically 120°C ( Brittleness Tesr). 

Applications without impact load (RTI Str) the tensile test is typically used as the test criterion,... 

Electrical applications (RTI Elec) the dielectric strength typically serves as the test criterion. 

D-0906. Test Method for Strength Properties of Adhesives in Plywood Type Construction in Shear by Tension Loading. Fig. 7 shows the specimen for this widely used test. In common usage, the main test criterion is a visual estimate of the area percentage of rupture failure which occurs as wood failure (versus glue failure ) and not the measured joint strength. 

The program consists of safe , certified , and validated software objects, and the test strategy adopted is based on the principle of white box testing [GAR 98], This method produces test scenarios directly from the program stiucture, significantly reducing the space of possible tests. The test criterion [ZHU 97] for a function block consists of ensuring that every possible path from input to output has been activated (transition from state 0 to state 1). 

For the global tests, the test criterion will be the execution of each safety function on a sample of each type of IIS. The complete sensor-actuator chain is again verified. Unlike previous tests, characterized by a large number of small tests, the global test requires a large number of personnel. 

Hot Modulus of Rupture (ASTM C-583). The hot modulus of rupture provides the indication of a refractory material about its flexural strength at elevated temperatures. Since refractories are used at elevated temperatures, the hot modulus of rupture is the true indicator of the suitability and performance of a refractory at high temperatures. Hence, in recent years, the hot modulus of rupture has been prescribed and required by users as the most important test criterion for selection and use of refractories. 

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