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There are currently (October 2007) 59 keywords, but the flexibility of the geotechnical exchange format is such that new keywords can be created if required. Expansion nonetheless has consequences for the applications capable of decoding the keywords. These must be adjusted, see versions. Each keyword identifies some information. The information, i.e. text and/or numbers, must be placed after every keyword. The only exception is the keyword which indicates the end of the measurement description (#EOH=). Which information and how much depends on the keyword itself.
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