Prevention temporary measures

When possible critical failure is envisaged, it is imperative that all possible effort must be made to prevent its occurrence. Quite often, redesigning of one or more vulnerable items is all that is required to avoid potential failure. However, the design and manufacture of new parts and their subsequent use in service equipment can take a long time, of the order of a few months, and sometimes as much as years. Thus temporary measures to rectify the problem are often required. 

A little more aging may occur in the bottle, as the sulfur dioxide content decreases gradually. Corked bottles of wine are stored with the cork end inclined downward so that the cork is kept wet and the admission of air is prevented. NOTE WELL In 1991, the Food and Drug Administration issued a temporary standard for wine prohibiting the sale of wine with more than 300 parts per billion of lead as a temporary measure until a permanent standard can be set. Also, FDA has said that it will soon propose a ban on lead foil wrappers to cover corks in wine bottles. 

Temporary employment agencies are at the top of the list. This implies that temporary workers can be considered a high-risk group of workers that may need special attention in preventive policy measures. 

Regulations require that PPE should only be used if there is no immediately feasible way to control the risk by more effective means, and as a temporary measure pending installation of more effective solutions. Disadvantages of PPE include interference with ability to carry out the task, the PPE may fail and expose the wearer/user to the full effect of the hazard and continued use may mask the presence of the hazard and may result in no further preventive action being taken. 

The pollution prevention principle should not be confused with the precautionary principle (Graham 1999 Commission of the European Communities 2000 Government of Canada 2001). The pollution prevention principle simply aims to prevent pollution, whereas the precautionary principle is more subtle and is based on precautionary action if the uncertainty of the risk is too great and the intensity is potentially very large. In that case, the measures taken should be proportionate and temporary, accompanied by efforts to reduce the uncertainty, and reviewed again when further information becomes available. 

Cleaning. Volumetric ware must be cleaned both to prevent contamination of other materials and to ensure accurate measurements. Because volumetric ware is often used as a temporary carrier for chemicals, it comes in contact with a variety of different materials which may be interreactive. Also, any particulate or greasy material left behind can alter a subsequent measurement. 

Measurements should continue after the fire, at least until the internal temperatures and pressures are falhng. If rain, or other precipitation, occurs during this period, a temporary cover should be erected to protect the package and to prevent inadvertent extinguishing of combustion of the package materials, but care should be taken not to restrict heat loss from the package. 

Temporary alternative measures Clearly mark the cable (so that it can easily be seen by the operator) at a point that will give the operator sufficient time to stop the hoist to prevent two-blocking, and use a spotter when extending the boom. 

Scour prevention measures are generally incorporated after the initial construction of a bridge to make it less vulnerable to damage or failure from scour. A plan of preventive action usually has three major components (FHWA 2012a) (1) timely installation of temporary scour prevention measures (2) development and implementation of a monitoring program and (3) schedule for timely design and construction of permanent scour prevention measures. 

The test for emulsion formation is the same as for foams the solution for the formation of an emulsion is to add a de-emulsifier, use another inhibitor or inhibit during shut-down. Most inhibitors will not cause emulsion formation at concentrations up to 250ppm. Above this, be careful. The best preventative measure for the loosening of scale is to clean the system thoroughly, if possible, before the inhibitor is applied. An alternate or supplementary method in systems that are very sensitive to suspended solids is to protect the sensitive parts with temporary filters. 

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