The document specifies the form, dimensions and position of an edge indentation for a tactile indentifier for machine readable telephone prepayment cards and the test procedure for verifying conformance with the standard.#,,#
DIN ETS 300767:1998 history
1998DIN ETS 300767:1998-05 Human Factors (HF) - Telephone Prepayment Cards - Tactile Identifier; English version ETS 300767:1997
1998DIN ETS 300767:1998 Human Factors (HF) - Telephone Prepayment Cards - Tactile Identifier; English version ETS 300767:1997