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Protection criteria

Pragmatic Protection Criteria for Nonalloyed Ferrous Materials... [Pg.104]

In this section the pragmatic protection criteria of NACE [23] given in Table 3-3 are commented on in light of present knowledge. [Pg.104]

The information in Sections 2.2, 2.4 and 3.3 is relevant for protection criteria. Investigations [43] with steel-concrete test bodies have shown that even in unfavorable conditions with aerated large-area cathodes and small-area damp anodes in Cl -rich alkaline environments, or in decalcified (neutral) surroundings with additions of CU at test potentials of (/f.y.cuso4 = -0.75 and -0.85 V, cell formation is suppressed. After the experiments had proceeded for 6 months, the demounted specimens showed no recognizable corrosive attack. [Pg.429]

Since cathodic protection of concrete structures in the United States has been very much advanced, protection criteria have been developed [46]. They correspond to the pragmatic criteria Nos. 3 and 4 in Table 3-3 (see Section 3.3.3.1). It is assumed that the protective effect is adequate if, upon switching off the protection current, the potential becomes more than 0.1 V more positive within 4 hours. The measurements are carried out in various parts of the protected object with built-in Ag-AgCl reference electrodes or with any electrodes on the external surface. [Pg.430]

Technical Committee Reports of the National Association of Corrosion Engineers, USA, on pipeline corrosion control, including Statement on Minimum Requirements for Protection of Buried Pipelines , Some Observations on Cathodic Protection Criteria , Criteria for Adequate Cathodic Protection of Coated Buried Submerged Steel Pipelines and Similar Steel , Methods of Measuring Leakage Conductance of Coatings on Buried or Submerged Pipelines , Recommended Practice for Cathodic Protection of Aluminium Pipe Buried in Soil or Immersed in Water ... [Pg.226]

NCRP. 1971. Basic radiation protection criteria. National Council on Radiation Protection and Measurements. Report No. 39. Washington, DC. [Pg.314]

SC-40 Biological Aspects of Radiation Protection Criteria SC-41 Radiation Resulting from Nuclear Power Generation SC-42 Industrial Applications of X Rays and Sealed Sources SC-44 Radiation Associated with Medical Examinations SC-45 Radiation Received by Radiation Employees SC-46 Operational Radiation Safety... [Pg.103]

The algorithm was optimized to meet the conservatively safe radiation protection criteria introduced earlier. [Pg.28]

In addition to ionizing radiation, other forms of radiation and other physical and chemical agents have also been evaluated by NCRP with respect to their potential health impacts, comparative risks, and protection criteria. Furthermore, because radiation in combination with other physical and chemical agents may exert additive, synergistic, or even antagonistic effects, NCRP has concerned itself increasingly with... [Pg.3]

Standards and Measurement of Radioactivity for Radiological Use-Medical and Biological Applications Biological Aspects of Radiation Protection Criteria SC 40-1 Atomic Bomb Survivor Dosimetry... [Pg.164]

Basic Radiation Protection Criteria (1971). [Superseded by NCRP Report No. 91]... [Pg.176]

Executive Order 10831, Aug. 14, 1959, and Department of Health, Education, and Welfare, General Program Policy, Part 10, Radiation Health Hearing of Joint Committee on Atomic Energy of Congress, Radiation Protection Criteria and Standards Their Basis and Use, p. 597, May 24, 1960. [Pg.113]

There is no global security policy, and therefore no unique definition of threats, protection criteria and risk assessment approaches. [Pg.72]

Section 8 - Consent Levels and Health, Safety and Environmental Protection Criteria. This section lists the maximum levels for emissions to the environment, chemical concentrations in the working environment, noise, health effects and personal risk. These may be imposed by statute or the result of Company policies. These figures will have a direct effect on the design of various items of plant equipment. [Pg.317]

From the analysis of air pollutants and their effects, the NAAQS described above were developed by the US EPA based on requirements of the Clean Air Act. This was done by defining the criteria pollutants to measure air quality, and then by determining the acceptable concentrations under health protection criteria (known as primary standard) a secondary standard was also defined to protect public welfare and prevent environmental and property damage. The criteria pollutants for air quality thus selected were CO, Pb, N02, O3, PM]0, PM25, and... [Pg.175]

Acute. Exposures occur for relatively short periods of time, generally from minutes to one to two days. Concentrations of (toxic) air contaminants are usually Iiigli relative to dieir protection criteria. In addition to iiilialation, airborne substances might directly contact die skin, or liquids and sludges may be splashed on die skin or into die eyes, leading to adverse healdi effects. This subject area falls, in a general sense, in die domain of hazard risk assessment (HZRA) and is addressed in die next two Parts (IV and V) of tills book. [Pg.286]

Spoor NL, Hursh JB. 1973. Protection criteria. In Hodge HC, StaimardJN, Hursh JB, eds. Handbook of experimental pharmacology. Berlin Springer- Verlag, 241-270,... [Pg.387]

As new commodities are introduced into commerce, additional research will be required to characterize hazards and establish protection criteria. New or modified building features may become available to address hazards as they become better understood. Future research may require revision of some of the information provided in these Guidelines. Therefore, warehouse management must be prepared to respond to new information to fulfill its responsibilities to its shareholders, employees, and the community. The following sections address some specific topics covered in this guideline requiring additional research and discussion. [Pg.151]

Cathodic protection of reinforced-concrete structures exposed to the atmosphere was apphed for the first time to bridge decks contaminated by de-icing salts by R. F. StratfuU in California in 1973 [1,2]. In the years following, design and protection criteria were elaborated, as well as power supply and monitoring systems completely different from those used for cathodic protection of buried steel structures or structures operating in seawater. Above all, it was proved that cathodic protection was a rehable repair technique even in the presence of high chloride contents, where traditional systems of rehabilitation are inefficient or very costly. [Pg.346]


See other pages where Protection criteria is mentioned: [Pg.597]    [Pg.103]    [Pg.153]    [Pg.286]    [Pg.120]    [Pg.298]    [Pg.103]    [Pg.108]    [Pg.314]    [Pg.3]    [Pg.314]    [Pg.45]    [Pg.61]    [Pg.164]    [Pg.22]    [Pg.389]    [Pg.286]    [Pg.550]    [Pg.911]    [Pg.221]    [Pg.94]   


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Cathodic protection criteria

Cathodic protection potential criteria

Criteria for cathodic protection

Criteria human health protection

Criteria natural resource protection

Criteria of Protection

Environmental Protection Agency water quality criteria

Pragmatic Protection Criteria for Nonalloyed Ferrous Materials

Proposed Mercury Criteria for the Protection of Natural Resources and Human Health

Protection criteria application

Protection systems design criteria

Radiation Protection Criteria

Radiation protection and acceptance criteria

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