Test Parameter

Many parameters affect a part s functionality. These parameters might be metallurgical, mechanical, or functional in nature. The metallurgical properties 

A full-scale machine test with the concerned part installed to directly demonstrate the part performance might not be feasible due to either technical or financial restraints. Alternative methods are usually used to indirectly prove that the part has met the required performance standards. These alternate methods range from comparative analysis based on theories, bench tests, to block tests. However, the first step for every method is to determine the parameters that need to be evaluated. 

A certain minimal number of tests are required to obtain a set of statistically sound tensile, compression, and shear strengths. The issue is whether it is feasible to actually conduct adequate tension, compression, and torsion tests with the specimens cut from the shaft due to the availability of the OEM part, the part size for a standard-size test coupon, and other factors. A compromise in reverse engineering is to conduct limited tests on the specimens directly cut from the part and compare the test results with the reference data to make sure the application of the reference data in this specific analysis is appropriate. 

When the material fatigue data are extracted from a reference book to calculate the part fatigue strength, proper modification of the reference data might be required. Many material fatigue strengths reported in a reference book are based on the test with specific R = ratio, usually -1, such 

---

The sensibility to defects and other testing parameters of pieces can be modified by the geometry of the piece to be controlled and the conception of the probe. It is sufficient to set the direction of circulation of eddy currents, regulate the magnetic field intensity and choose the coil of the appropriate size. 

In non-destructive testing both the stationary and portable equipment is used, the latter - more frequently. Transportation of the equipment to the object to be tested demands adjustment of testing parameters directly before the examination realization. 

Citation Description Selected methods included Test parameter(s)... 

Test data are available for two experiments at different impact velocities in this configuration. In one of the tests the projectile impact velocity was 1.54 km/s, while in the second the impact velocity was 2.10 km/s. This test was simulated with the WONDY [60] one-dimensional Lagrangian wave code, and Fig. 9.21 compares calculated and measured particle velocity histories at the sample/window interface for the two tests [61]. Other test parameters are listed at the top of each plot in the figure. 

Comparison of Test Parameters of Various Standards for End-of-Line and In-Line Deflagration Flame Arresters (Adapted from Lapp and Werneburg 1999)... 

FIGURE 9.9 Definition of column test parameters using a SEC chromatogram of a polymer standard mixture (PSS Polystyrene ReadyCal) and a low molar mass compound (BHT). 

Agitator autoclave tests can be used as screening tests despite the more intensive localized corrosion attack and the generally greater erosion rates. This test method elucidates the influences of certain test parameters including temperature, H2S/CO2 ratio, and flow [564]. 

Acids, when used as scale inhibitors, are extremely corrosive. Their effectiveness has been laboratory tested. Parameters include acid type, metallurgy, temperature, inhibitor type and concentration, duration of acid-metal contact, and the effect of other chemical additives [279]. Lead and zinc sulphide scale deposits can be removed by an acid treatment [922]. 

Once the pure mineral powders characterized, 3 mixtures were manually prepared and named ML1, ML2 and ML3. They contain each of the 8 minerals in different proportions reproducing 3 mine tailings falling in the uncertainty zone of the static test used. The 3 synthetic tailings were characterized with the same techniques as for the pure minerals. Cp and Sp weight fractions were evaluated from their chemical element tracers (respectively Cu and Zn) obtained from ICP-AES analysis. Qz, Dol, and Sid samples are considered pure and their percentages in the mixtures are not corrected. Table 1 presents the fraction of each mineral in the three mixtures before and after correction taking into consideration the contamination of Po sample by pyrite and calcite, as previously determined. The corrected mineral proportions are used for calculation of the static test parameters based on... 

One of the fundamental requirements for a high performance anode is to have excellent catalytic activity toward the electrochemical oxidation of the fuel (e.g., hydrogen). This is reflected as low anode polarization or interfacial resistance. This area has seen intensive research for quite some time and is covered very well by the reviews of McEvoy [2], Zhu and Deevi [3], and Jiang and Chan [4], In this section, the focus will still be on revealing the influences of processing and testing parameters on the obtained anode electrochemical performance. 

Effects No effects on tested parameters of blood pressure, heart rate, electrocardiogram (EKG) rhythms, or lung peak expiratory flow. 

VI1-3.5.2 Procedure. Facilities selected for pressure drop tests shall first be isolated and then tested. The following criteria shall be considered in determining test parameters ... 

Experience has also shown that in cases such as stress rupture and thermal ageing the test parameters may have to be designed progressively. Shorter tests at higher loads (or temperatures) are set up first and the times to failure measured. The test conditions for longer lifetimes are then set on the basis of these results. This is particularly important where the validity of the final result depends on obtaining a failure within a particular time interval, e.g., over 5,000 h as in IEC 60216 [2], or where the measurements must be completed within a set time. 

ISO 6601, Plastics - Friction and wear by sliding - Identification of test parameters, 1987. 

---