摘要:
A method for deciding the air reactivity, the CO2 reactivity and the soot index of carbon products, where the air reactivity and the CO2 reactivity of a sample of a carbon product are decided on the basis of the same test; the air reactivity is analysed first and, when this analysis is finished, the CO2 reactivity is automatically analysed on the same sample. The soot index is determined by collecting and weighing the soot dust. Equipment for carrying out the method, consisting of a vertical tube furnace (2) with an inlet (4) for the introduction of gas, and a sample holder (5) for the carbon product which is freely suspended from a weighing device (3) and reaches down into the tube furnace. The sample holder (5) is provided with one or more thermocouples for registering the temperature in the carbon product.
摘要:
The invention concerns equipment for sampling and processing for analysis of PAH and other organic compounds, as well as hydrogen fluoride and sulphur oxides in air and in gas in production equipment. The equipment comprises a layered adsorption device 1 in which the adsorbents are dry. During sampling the adsorption device 1 is connected at its upper end to a probe 8 which is brought into contact with the object to be sampled, and connected at its lower end to a gel box 10, a pump 9 and a gas clock 12 in series. After the sampling, the adsorption device 1 may be connected directly to the extraction apparatus 11 for the processing of the sample.