Clean definition

The basic prerequisites for an effective and efficient procedure are the clean definition and clear communication of the transitions between the particular phases. The quality of the transitions has to be ensured by reviews being carried out by the relevant project roles. 

A heat of immersion may refer to the immersion of a clean solid surface, qs.imm. or to the immersion of a solid having an adsorbed film on the surface. If the immersion of this last is into liquid adsorbate, we then report qsv.imm if tbe adsorbed film is in equilibrium with the saturated vapor pressure of the adsorbate (i.e., the vapor pressure of the liquid adsorbate P ), we will write It follows from these definitions... 

The oil that remains is only slightly dark. Definitely translucent which is always lovely. One can then add some water to take up the unreacted salts and separate the oil from this. If an emulsion forms it can be busted up with some 10% HCl. That isosafrole is clean enough to proceed with but it can of course be distilled for ultra purity. 

It may be desirable to curtail transport of pollution to areas whose air is presently quite clean, even though, after such transport, the air quality of the area would be considerably cleaner than would be required by air quality standards. This concept is called prevention of significant deterioration of the air quality in such areas. It requires definition of how much deterioration can be considered insignificant. 

This section provides an overview of important definitions and terminology that the Hazardous Materials Worker and Emergency Response Personnel should know. Emergency response at sites other than hazardous waste clean-up sites are emphasized. Under OSHA s 29 CFR1910.120 emergency response personnel (that will take some action to control the situation other than call for help) shall be trained to a competence to protect themselves and other employees in ... 

This type of bag-cleaning method is a fundamental characteristic of this type of collector. Terminology in the fabric filter field is not totally consistent or comprehensive. Table 13.2 presents acceptable definitions for common fabric filter terminology. 

In the CCPS Taxonomy, four degrees of severity, from clean to severe, are used to characterize the process medium—the material being handled by the equipment—and its influence on reliability. In some cases, the severity will be unknown. Even if a severity is listed, doubt may exist about its value, since the definitions of severity are fairly subjective. 

The new continuous casting processes, in contrast to ingot cast products, provide tin mill products which are exceptionally clean and formable. The deoxidizing processes required for continuous casting involve either aluminum or silicon killing, which adds aluminum or silicon to the steel. Experience with type D steels indicates that the added aluminum will not cause a corrosion problem. Laubscher and Weyandt (18) have shown that the silicon found in silicon killed, continuous cast, heavily coated ETP will not adversely affect the corrosion performance of plain cans packed with mildly acid food products in which tin usually protects steel. The data on enameled cans is not definitive. Additional published data are required to determine whether or not silicon actually reduces the performance of enameled cans made from enameled, heavily coated, silicon killed, continuous cast ETP. 

Clean and Polluted Air. In the development of atmospheric chemistry, there has been an historic separation between those studying processes in the natural or unpolluted atmosphere, and those more concerned with air pollution chemistry. As the field has matured, these distinctions have begun to disappear, and with this disappearance has come the realization that few regions of the troposphere are completely unaffected by anthropogenic emissions. An operational definition of clean air could be based upon either the NMHC concentration, or upon the NOjj concentration. 

A definition based upon the NMHC concentration might require nonmethane hydrocarbons to contribute insignificantly to atmospheric reactivity. Such a region might still contain very low concentrations of nonmethane hydrocarbons, so long as their sum total reactivity does not significantly contribute to that of methane and carbon monoxide. This is to say, in clean air... 

A definition of clean air based upon NOj concentrations is more difficult to obtain, because of the ubiquitous natural source in lightning (56,154), and because NO may influence HO concentration even at the lowest tropospheric NO levels (a few ppt) that have been observed. An operational definition might require that the rate of the H02 self-reaction R33 be much faster than its reaction with NO, R13. At NO concentrations below about 1 ppb, [H02 ] is relatively independent of [NO ], while [HO ] may increase with [NO ]. Above this level, both [HO2 ] and [HO ] fall with increasing [NOJ. These [HOJ dependencies on [NO ] are shown in Figure 4 (58) and discussed further in the last section. 

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