Analysis of information sources in references of the Wikipedia article "ISO/IEC 646" in English language version.
The Technical Committee TC1 of ECMA met for the first time in December 1960 to prepare standard codes for Input/Output purposes. On [30] April 1965, Standard ECMA-6 was adopted by the General Assembly of ECMA.
@
(0x40) and `
(0x60) with "Unit space A" (UA) and "Unit space B" (UB). The plain space (0x20) expands on justification. UA and UB are for fixed widths, UA must be at least as wide as UB. RFC 1345 maps UA and UB to ISO 10646 (UCS) code points U+E002 and U+E003, both in the Private Use Area, respectively (although it also lists PUA mappings for several other characters which now have UCS code points). Unicode contains a number of space characters which might approximately correspond.{{citation}}
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