T apparatus

B.E.T. apparatus 121), using nitrogen as the adsorbate at liquid nitrogen temperatures. Reactivity data were also determined at a number of other temperatures between 900 and 1350°, but subsequent profile data are lacking. 

The surface area measurements were performed by adsorption, using nitrogen as the adsorbate. The samples were previously degassed to below 50 mmHg at room temperature and the analyses were performed at 77 K, using liquid nitrogen. The equilibrium interval was 5 s. The surface area was calculated using the Brunauer, Emmett, and Teller (B.E.T.) method. Pore volume and area distributions based on BJH calculation (8) were evaluated by the B.E.T. apparatus software (NOVA 1200-Quantachrome). 

Samples consisted of a strip of rubber (6 cm x 1.5 cm x 0.25 mm) with the ends glued between aluminum foil. This was then dipped into a 15% PAA/85% NMP solution and placed into the force-temperature (F-T) apparatus, gripping only the aluminum tabs. 

AsF gas was condensed into aHF over FeF2 in one limb of a T apparatus and the mixture agitated at -20 °C (with additional AsFj added as necessary) until most of the Fep2 had dissolved. The clear supernatant was decanted to the other limb, and the volatiles were removed in a dynamic vacuum to leave a flaky colourless crystalline solid XRDP of which showed close similarity to those of the M(SbF 2-... 

To eliminate the bulk of the KF impurity present in commercial K2NiFg, the latter was dissolved in aHF in one leg of a T apparatus. The solution was decanted to the other leg, leaving any insoluble material in the first. Most of the aHF was then removed from the solution, so that the bulk of the K2NiFg crystallized. The remaining solution was decanted to the other limb and the crystalline K2NiF drained... 

Tajima F and Yamamoto T, Apparatus for filtering water containing radioactive substances in nuclear power plants, Toshiba, US Patent 4,756,875, 1988. 

Markowski A, Kaminski W, StrumiUo C, Kudra T. Apparatus for heat and mass transfer. Polish Patent No. 100,376, 1977. 

Here V can be the specific volume v, or else molar volume (convenient for non-polymeii compounds), or some other intensive volume unit A P-V-T apparatus for polymer solids and melts called Gnomix is also available (14). Our own results obtained with that apparatus (15) provide a comparison between EPs and PLCs. The expansivity of polyethylene (PE, 140°C) = 7.20.10 K L At the... 

An essential feature of the I.D.T. apparatus is the measurement of pressure at each end of the capillary system. The pressure at the outlet end is held constant, as it is connected to a reservoir of effectively constant hydrostatic head. The pressure measurements are made by all stainless steel variable inductance transducers (EMI model SE 1150/WG) energized by oscillator/demodulator units. The pressure transducer outputs are fed to a twin channel flat bed potentiometric recorder. The pressure measurements have a sensitivity better than 1 Nm" (0.1 mm H2O). 

Hence the I.D.T. apparatus enables measurement of the volumetric flow rate (Q), the displacement velocity (v), the dynamic contact angle (0) and the pressure changes (A) for the process of immiscible displacement in the capillary system. 

The I.D.T. apparatus enables determination of each of the variables in equation (4) as described in the following section. Hence the validity of the assumptions listed above can be tested, and values of the effective interfacial tension obtained during displacement... 

This subject has been reviewed [100-102] and details of ageing/weathering tests have been discussed [62,100-102]. In particular, the Xenotest 250 T apparatus [62] and SAE J 1885 [102, 103] are mentioned. 

Yoshimura, T. Apparatus and method for drawing draft on fabric for handcraft and the fabric. Jpn. Kokai Tokkyo Koho JP 2001322316, 2001 Chem. Abstr. 2001, 135, 364564. 

The te. t apparatus consists of a main test chamber and a sump tank to facilitate easy handling of the liquid Bi and to permit periodic sampling of the litiuid metal. The main test chamber, containing the samples and the sample loading mechanism, is shown in the cutaway of Fig. 21-12. The method of transmitting the load with air pistons through flexible bellows can be clearly seen. A second chamber mounted on top of the main test chamber contains a nc Thymotrol motor ivhich rotates the cylindrical specimen. The power input versus torque characteristics of the motor when... 

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