Classification test work

A small amount of Melapur 200 (melamine polyphosphate) with a metal hydrate leads to a strong reduction in the rate of heat release. The combination allows a lowering of the loading to 50% instead of 65% and still retains the same peak rate of heat release as with 65% magnesium hydroxide in EVA. The effect of Firebrake ZB has been shown to further reduce the overall level of heat release and create a hard, cellular protective structure. In vertical bum tests like UL94, however, this stmcture is not created and leads to a loss of classification. Current work is endeavouring to improve vertical burning behaviour of these formulations. 

An example of a results sheet is shown in Figure 6.2. It is displayed to include polymer addition. For three-phase test work, oil analyses would need to be added, and data for two liquid discharge streams also would need to be recorded. The polymer addition would be omitted where none is used, but would be adapted for the use of rinse. Figure 6.2 is shown as a general result sheet to cover as wide a range of applications as possible. Naturally it can be. and is, adapted for special applications such as classification or, say. refining work, when interest, perhaps, will be more in size distributions and chemical analyses, respectively. 

The aim of this work which enter in a research project on NDT, is to conceive a system of aid for interpretation and taking decisions, on imperfections in metallic fusion welds, we have studied and tested several segmentation techniques based on the two approaches ( contour and regions ). A quantitative analysis will be applied to extract some relatives geometricals parameters. To the sight of these characteristics, a first classification will be possible. 

CEN/TC 127 has created, as it has been said in chapter 5, a Working Group (WG 2) charged with the responsibility of deriving a European classification system based on the ISO tests. WG 2 is composed of 21 members from 14 countries and is convened by Sweden. It has very recently formulated 111 its philosophy, based on the following statements ... 

OECD. 1999a. Detailed review document on classification systems for sensitising substances in OECD member countries. OECD Series on Testing and Assessment No. 13. Environment Directorate, Joint Meeting of the Chemicals Committee and the Working Party on Chemicals. ENV/JM/MONO(99)3. Paris OECD. 

Several types of drugs are currently available, and certain compounds work best in specific types of epilepsy. Consequently, the type of epilepsy must be determined by observing the patient and using diagnostic tests such as electroencephalography (EEG).21 The classification system most commonly used in characterizing epilepsy is discussed here. 

The Sabine River Works of the DuPont Company Plant in Orange, Texas, shared their process interlock classification and test program in 1988. [26] At that time, this large DuPont chemical complex employed about 2,500 individuals and consists of large singletrain processing units. Most of the units are continuous processes for the manufacture of olefins, polyolefins, and chemical intermediates for nylon. 

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