Testing technologies individual tests

Standards have been a part of technology since building began, both at a scale that exceeded the capabiUties of an individual, and for a market other than the immediate family. Standardization minimizes disadvantageous diversity, assures acceptabiUty of products, and faciUtates technical communication. There are many attributes of materials that are subject to standardization, eg, composition, physical properties, dimensions, finish, and processing. Implicit to the realization of standards is the availabiUty of test methods and appropriate caUbration techniques. Apart from physical or artifactual standards, written or paper standards also must be considered, ie, their generation, promulgation, and interrelationships. 

As a result of KU s know-how in this field, the guaranteed shutdown period for converting a 340 000 metric tonne per year NaOH plant from mercury to membrane technology was as short as 8 weeks. This was made possible by a new conversion concept the individual elements were assembled in an adjoining assembly hall and installed in cell racks of 72 elements each. In this way, more than 2600 elements were assembled and installed in 18 two-rack electrolysers, and pressure and leakage tested. As soon as part of the mercury electrolysis plant was dismantled, the completed electrolysers were placed onto the vacated area and connected to the piping already installed beneath the cell rows (Fig. 16.6). 

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