The purpose of this standard is to give, in tabular form, the quantities and units of solid state physics. When two symbols are given for the same quantity, without special dis inction, they can be used indifferently. SI units are given in bold; other units are given in common characters. The abbreviations "ni, de, en" mean "Dutch, German, Englis " respectively (is 639:1988). The definitions of the units are given in the NBN X 02-001 standard. In the appendix are the symbols for the planes and rows in the crystals.