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7.3 Data Representation

Permissible data representations are those listed in §6. Parameters  and elements of associated data arrays shall have the same representation. Should more precision be required for an associated parameter than for an element of a data array, the parameter shall be divided into two or more addends, represented by the same value  for the PTYPEn keyword. The value shall be the sum of the physical values , which may have been obtained  from the group parameter values  using  the PSCALn and PZEROn keywords.