Testing conditions temperature

MFI of the composition to that of the matrix, as a function of the filler concentration. It can be seen that, as the concentration of a particular filler increases, the index increases too for one matrix but decreases for another, and varies by a curve with an extremum for a third one. Even for one and the same polymerfiller system and a fixed concentration of filler, the stress-strain characteristics, such as ultimate stress, may, depending on the testing conditions (temperature, rate of deformation, etc.) be either higher or lower than in the reference polymer sample [36],... 

Climatic Zone Definition Criteria [Mean Annual Temperatures Measured in Open Air (°C) and Mean Annual Partial Vapor Pressure (hPa)] Long-Term Testing Condition [Temperature (°C) and RH]... 

A gravimetric method is often used for the measurement of water vapor permeability. The water vapor transmission rate (WVTR) according to this method is the amount of water vapor in g that permeates in 24 hours under standard test conditions (temperature, air relative humidity, water vapor sorbant) through aim2 sample surface area. The method measure a flux and not a permeability coefficient. 

The finished rubber product will have to meet a specification in which a number of properties (e.g. hardness, tensile strength and elongation) are given target values. A number of other properties can be assessed, and these will depend upon the type of rubber and the application that it is going to be used in. An important example is the overall migration limit test, with the food simulant and test conditions (temperature and time) being dictated by the end use conditions. 

Figure 10. Fsat versus E of the propellant for different tensile test conditions (temperature and strain rate).

A—) and percentage of carbon on catalysts (— — — —) used under different pressures during the standard test. Conditions temperature, 515°C and... 

Figure 5. Modifications of l RON(- o -), A % Arr, (-X-), ArfCs" (—A—), and percentage of carbon on catalysts (- — — -) used under different Ht naphtha molar ratios during the standard test. Conditions temperature, 515 C ...

Resin Type Test Test Conditions Temperature, C/Pressure, MPa after 24 hours ... 

Figure 7. Effect of catalyst service time on gas production rates. Test conditions temperature, 750°C flow, 2000 std cc/hr N2 and 1.16 grams/hr water.

Table 1.10. Accelerated test conditions. Temperature (T,°C), relative air humidity RH, %), and test duration (r, h)... 

This rotating spindle viscometer is used for the determination of dynamic viscosity of a variety of bituminous binders modified and unmodified bituminous binders, bituminous emulsions, cut-back and fluxed bituminous binders by means of rotating spindle (coaxial viscometer) viscometer, at typical test conditions (temperatures and rate of shear). 

The stiffness is determined with one of the methods/apparatuses described in EN 12697-26 (2012), and the test conditions (temperature and loading frequency) are given in Table... 

The change in the expected downtime 6 by using a specific choice of test conditions (temperature). 

Material Production process Dimension (mm) plate thickness, bar diameter Pretreatment rcc)//a(h) Specimen type Crack plane ASTM 399 Test conditions, temperature, frequency Stress ratio R dajdN- range, (m/cycle) Aifth AA th,etf ASTM Ref. 

Code letter Test condition Temperature/nominal load... 

TABLE 7-36. Standard Test Conditions, Temperature and Load... 

There has been considerable progress over recent years in the study of molecular mechanisms involved in crazing and shear yielding [1,2]. When sample preparation and test conditions (temperature, stress state, strain, strain rate, and thermal history) are chosen to be the same, the effect of molecular variables can be determined. It is now well established that (network) strand density plays an important role in determining the deformation mechanism and in affecting the craze-shear deformation transition. Polymers are... 

However, the evaluation of the mechanical properties invariably starts with the testing of tensile properties. Whilst for some fibre applications the tensile properties are directly relevant, there are many cases where it is difficult to relate the fibre performance in the end-product to the fibre tensile properties. Indeed, in some applications better tensile properties could result in a poorer end-product performance (e.g. due to fibrillation resulting in poor abrasion resistance). The result of a tensile test is a stress/strain curve. Since fibres are viscoelastic, the relationship between the tensile stress and tensile strain is influenced by the test conditions (temperature and relative humidity of the environment, stress and/or strain time-dependence, etc. ). 

Test conditions temperature at 260 °C, flux type RMA, hold time was 5 sec after solder perform melted. 

Test conditions temperature cycling between —54°C and 75°C, soak time of 2 hr in each chamber. Thermal fatigue failure rate (in percent) was determined by detecting a 360° crack around the solder fillet at a magnification of 40 x at the first cycle and every 25 cycles thereafter. 

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