Heat soak test

Competent ABM manufaeturers heat soak the eomponents and test them for eompatibility and resistanee to eoiTosion. Extensive ehemieal soak tests were performed in the early 1990s and the results did not... 

For each test, the machine was heated up to a set temperature and allowed to heat soak for 1 hour. After 1 hour of heat-up time, the machine was allowed to run cycles for 30 minutes to stabilize. After the initial 30 minute stabilizing period, data was collected for another 60 minutes on the NETDAQ. After this 60 minute period, melt temperature was taken with a hand held melt probe. The data recorded on the NETDAQ for this study consisted of ... 

The early carbon trap and SHED methods measured two components of evaporative emissions. Hot soak emissions were measured for a one hour period immediately after a vehicle had been driven on a prescribed cycle and the engine turned off. Diurnal emissions were also measured during a one hour event where the fuel tank was artificially heated. The one hour fuel temperature heat build was an accelerated test that was developed to represent a full day temperature heat build. 

Cloths used to apply linseed oil to laboratory benches were not burned as directed, but dropped into a waste bin. A fire developed during a few hours and destroyed the laboratory. Tests showed that heating and ignition were rapid if a draught of warm air impinged on the oil-soaked cloth. Many other incidents involving ignition of autox-idisable materials dispersed on absorbent combustible fibrous materials have been recorded [1], Practical tests on the spontaneous combustion of cotton waste soaked in linseed oil and other paint materials had been reported 40 years previously [2],... 

Adjust 20 ml of urine to pH 5 with 0.1 M hydrochloric acid, add 2 ml of acetate bi er (pH 5), and 10 000 Fishman units of mixed gluciwoiiidase/ sulphatase (from. Helixpomatid), and heat in a water-bath at 60° for 2 hours. Pom tiie urine on to Ml imbuffered Tox Elut column (see Reagent. / ipendix) and leave for 2 to 3 minutes to allow the sMnple to soak into the column. Place a 50-ml test-tube under the coliunn outlet and pour on to the coliunn 20 ml of a mixture of chloroform isopropyl alcohol (9 1). When the elution is complete, insert into tile top of the column a hollow rubber stopper... 

Procedure to perform several adiabatic oxidatively-heating tests, which are started from each r, with mutual intervals of 1 2 K, in order to calculate the heat generation data of an oil-soaked adsorbent cotton, for 2 cm each of several samples of the oil-soaked adsorbent cotton charged each in the draft cell, into which air is supplied, for the time. At, required for the temperature of each sample of the oil-soaked adsorbent cotton to increase by the definite value of AT of 1.25 K from the corresponding standard temperature, respectively... 

As stated in Preface, whenever the adiabatie oxidatively-heating test is performed for an oxidatively-heating liquid, such as unsaturated fatty acid, the liquid is tested, in principle, in the form of oil-soaked adsorbent cotton at relatively low temperatures, or in the form of oil-soaked glass wool at relatively high temperatures. And, the Tc for a heap of the oil-soaked adsorbent cotton, or that of the oil-soaked glass wool, having some one of the several specific shapes and an arbitrary size, placed in the atmosphere under isothermal conditions, is also calculated in the same manner as applied to the calculation of the 71 for a heap of a gas-permeable oxidatively-heating substance. 

The temperature of the air bath is set at a proper value, i.e., the nominal F, of the run, by means of the temperature dial on the air bath on the basis of the oxidatively-heating property of the oil-soaked adsorbent cotton tested to give estimated rates of increase in temperature of 1.25 K/h in the adiabatic oxidatively-heating test. 

On the other hand, however, the oxidatively-heating process, in the early stages, of 2 cm of the oil-soaked adsorbent cotton charged in the draft cell and subjected to the adiabatic oxidatively-heating test is recorded, as an analog signal as well, with the T pen on the strip chart of the two-pen strip chart recorder to look about the process as a whole. 

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