Hygienic requirements

Natural ventilation is the controlled flow of air through doors, windows, vents, and other purposely provided openings caused by stack effect and wind pressure. Natural ventilation is used in spaces with a significant heat release, when process and hygienic requirements for indoor air quality allow outdoor air supply without filtration and treatment. Natural ventilation cannot be used when incoming outdoor air causes mist or condensation. Natural ventilation allows significant air change rates (20 to 50 ach) for heat removal with ntinimal operation costs. 

Hygiene requirements for particle concentrations in the air have been based on concentrations of particles smaller than 10 pm (particulate mass, P.M,)). Studies have shown a direct connection between the death rate and finer particles, and official requirements are under review, in both Europe and the United States, to be based on the concentration of particles smaller than 2.5 pm (PM2.5). 

Materials and corrosion protection These issues are covered in greater detail in System and Equipment. Also, from the hygienic point of view, this issue is growing in importance. Applications with high hygiene requirements are rapidly increasing due ro automation of processes. 

The EineLINE series of columns was designed to meet the stringent demands of hygiene required in the production of biopharmaceuticals. These stainless-steel-based columns employ a hydraulic flow adaptor and may be operated at... 

All finishes should be selected to be resilient to expected average and worst-case environmental exposure such as high/low humidity or temperature, airborne contaminants, vibration, possible aggressive liquid spillages, cleanliness/hygiene requirements, etc. 

That the authorities have refused unreasonably to accept compliance with alternative requirements or that the requirements of the notice are otherwise unreasonable in character or extent, or are unnecessary. This defense is self-explanatory. The local authorities are only permitted to ask for works that will abate the noise nuisance. Other works (perhaps to comply with legislation) should not be specified in the notice. They may, however, be contained in a letter separate from the notice. An example of this would be where the fitting of acoustic enclosures to food-manufacturing machines breached food hygiene requirements. Readily cleanable enclosures may be a requirement of the Food Hygiene Regulations, but it should not be contained in a Section 58 Control of Pollution Act notice. 

The pesticide storage situation in the 1960-70s was typical of what was found in Uzbekistan only 40% of 1082 storehouses met health and hygiene requirements [A62]. Towards the end of the 1980s, only 75% of the pesticides used in the USSR were provided with storehouses [1]. A significant number of the chemical substance storehouses (20% in Russia, 23% in Ukraine) did not meet elementary health requirements. In Azerbaijan, there were no specialized storehouses for pesticides at all - these chemicals were being stored together with mineral fertilizers [19]. From that time on, very little has changed. 

The maturation step was considered to be the bottleneck of the process. The residence time in this process takes up to 6 hours, limiting the flexibility of the plant. Moreover, one should realize that this process step takes place after the pasteurization step. Hence the hygienic requirements for this process step are quite strict and the capital costs for this part is high. We wanted to do a redesign of this process, leading to the same product, but ideally without the maturation step. This was done by applying the process synthesis techniques discussed above. 

Although this technique is not limited to the initial cell recovery stages of a downstream process, cross-flow filtration is commonly used for product recovery operations, particularly in lower volume processes where stringent hygiene requirements apply, as in the pharmaceutical and food industries. 

Lessons may also be learned from applications of control systems in the food processing industries. These applications must satisfy hygiene requirements (including periodic cleaning and sterilization), time constraints imposed by product perishability, and requirements for accurate records of sources and operation histories of materials.21 The industry also experiences slim profit margins, short production runs, and frequent product changeovers—characteristics shared with many industrial bioprocesses. 

This level of precision is sufficient for most purposes, even for the less common gases, and is much more convenient than most alternatives when the number of tests required is small (Table 2.3). In the early days of the development of these systems a tube for testing carbon tetrachloride vapor was questioned as to its capability to achieve a precision within 50% of stated values [29]. Even if true, this level of accuracy is still adequate for many regulatory and industrial hygiene requirements. 

For an industry which involves large-scale handling of finely divided solid materials, emission control of large-scale combustion processes for coking, etc., has to be a priority. Containment is necessary for maintenance of public health in associated built-up areas, for industrial hygiene requirements of plant operators, for better product yields from the raw materials entering the processes used, and for aesthetic reasons. 

Compatibility with the local or international food laws, regulations, and standards, concerning mainly proportions of main components, presence of compounds regarded as identity indicators, contents of contaminants and additives, hygienic requirements, and packaging... 

In most cases water will require some treatment to assure that it meets food hygiene requirements and does not constitute a public health hazard. Surface water from rain runoff into rivers or impoundments is likely to contain atmospheric solutes, minerals from the ground, organic matter from vegetation, microbial contamination from birds and wild and domestic animals, and human waste. Water from underground aquifers will have much of the surface contamination filtered out, but it is likely to be high in dissolved mineral content. 

Complying with local and international standards (DIN, UNI, UNE, BS, ASTM) regarding mechanical and physical properties to ensure a safe life without unexpected failure and meet hygienic requirements (ANSI, NSF) to avoid health effects. 

In accordance with the Statute of the State Inspectorate for Environmental Protection (SIEP), the Chief Inspector of SIEP plays the co-coordinative role within the State Environmental Monitoring Programme. The State Sanitary Inspectorate (SSI) is responsible for air quality assessment from the viewpoint of health and hygiene requirements. The authority responsible for official data on national emissions into air is the Department of Environmental Protection in the Ministry of Environmental Protection, Natural Resources and Forestry (MoE). Air quality monitoring data are used at national, voivodship (provincial) and local levels. 

Tubular. Relatively uncommon in RO and used where particulates require the opan channel or where hygienic requirements are peramonnt. 

Only the operators and authorized persons shall be allowed to enter into the clean area The entering of materials and persons into clean areas shall be in such a way as conforms with the hygiene requirements for management of clean areas. 

Here, the laboratory is once again the source of justification. The new remedies sold best if the public s belief in the effectiveness and supremacy of scientifically based biomedicine was intact. Therefore, new non-verbal, visual promotional procedures were developed, along with product innovation and diversification based on patent rights, which provided the product with its very own pictographs and facilitated its identification. Once registered, the proprietary article represented the scientific renown of the product and the company. A Ciba advertisement of 1939 said as much The Ciba brand states that the products which carry it are manufactured according to scientific principles and meet all respective technical or hygienic requirements. ... 

AAB are still a common contaminant in beer dispense. Brewery-related Enterobacteriaceae need to be monitored in breweries due to the high level of hygiene required and also due to their role in production of ATNC in beer. Selective Enterobacteriaceae also play a significant role in flavour development in lambic and American cool-ship ales. Zymomonas seems to be limited to primed beer in the brewing industry, but strains of Zymomonas are still a problem in the cider industry. 

Hygiene requirements (e.g., cleanroom locks, disinfection) also apply for the inspectors. 

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