Self-describing media size names for legacy metr ic paper formats
Christoph Päper via ipp <[email protected]> Wed, 3 Dec 2025 18:40:55 +0000 (GMT)
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Dear PWG The German standard DIN 678-1:1998-01 for envelope sizes, not ful=
ly obsoleted by DIN 476-2:2008-02 (which specifies the C series not part o=
f ISO 216 =3D DIN 476-1), mentions a large size outside a series proper: E=
4 of 280 by 400 millimeters. If this were to be included as a media size s=
elf-describing name, which form would that take? om_e4_280x400mm om_din-e4=
_280x400mm om_germany-e4_280x400mm din_e4_280x400mm iso_e4_280x400mm deu_e=
4_280x400mm ger_e4_280x400mm deu_din-e4_280x400mm ger_din-e4_280x400mm Sin=
ce the grammar in PWG MSN 2.1 section 5.1 only includes prefixes 'iso', 'j=
is', 'jpn', 'prc', 'om' and 'roll' for metric sizes, all but the first thr=
ee and the fifth option probably disqualify, although the prose mentions t=
hat those are the "currently" defined classes of namespaces and jurisdicti=
ons. Since it is not part of an ISO standard, the fifth option is also out=
, but what if one wanted to add historic systematic sizes like 4A0, A11, A=
12, A13, B11, B12, B13 or the D series once specified in DIN 476? The orig=
inal question boils down to: should there be a prefix before the label `e4=
` and should it give the standards body (DIN) or the country (Germany: DEU=
, GER)? Similarily, the Canadian compromise size PA4 from withdrawn nation=
al standard CAN2-200.2-M79 could probably be registered by one of the foll=
owing media size names: om_pa4_210x280mm om_can-pa4_210x280mm om_canada-pa=
4_210x280mm Although no name currently seems to contain a dot '.' outside =
the dimensions, it seems to be allowed by the grammar for `base-name`. Elo=
ngated sizes specified by ISO 5457:1999 would therefore be, if someone wan=
ted to register them: iso_a1.0_594x1189mm iso_a2.0_420x1189mm iso_a2.1_420=
x841mm iso_a3.0_297x1189mm iso_a3.1_297x841mm iso_a3.2_297x594mm Although =
the name "Weltformat" apparently is still in colloquial use in some nation=
al advertisment printing businesses, particularly in Switzerland, there is=
disagreement about the proper size. Original sources seem to have specifi=
ed the only ever-relevant number 14 (or XIV in Roman numerals) of the 'wor=
ld format' as 905 by 1280 millimeters, whereas APG/SGA co-lists its F4 siz=
e of 895 by 1280 millimeters under that name. Not considering sibling form=
ats, this still leaves a plethora of options and I would not know which to=
choose: om_welt_905x1280mm om_welt-14_905x1280mm om_welt-xiv_905x1280mm o=
m_weltformat_905x1280mm om_weltformat-14_905x1280mm om_weltformat-xiv_905x=
1280mm om_world_905x1280mm om_world-14_905x1280mm om_world-xiv_905x1280mm =
om_world-format_905x1280mm om_world-format-14_905x1280mm om_world-format-x=
iv_905x1280mm om_f4_895x1280mm om_swiss-f4_895x1280mm om_apg-f4_895x1280mm=
om_sga-f4_895x1280mm om_apgsga-f4_895x1280mm om_apg-sga-f4_895x1280mm
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<html><body><div>Dear PWG</div><div><br></div><div>The German standard DIN 678-1:1998-=
01 for envelope sizes, not fully obsoleted by DIN 476-2:2008-02 (which spe=
cifies the C series not part of ISO 216 =3D DIN 476-1), mentions a large s=
ize outside a series proper: E4 of 280 by 400 millimeters. If this were to=
be included as a media size self-describing name, which form would that t=
ake?</div><div><br></div><div>om_e4_280x400mm</div><div>om_din-e4_280x400m=
m</div><div>om_germany-e4_280x400mm</div><div>din_e4_280x400mm</div><div>i=
so_e4_280x400mm</div><div>deu_e4_280x400mm</div><div>ger_e4_280x400mm</div=
><div>deu_din-e4_280x400mm</div><div>ger_din-e4_280x400mm</div><div><br></=
div><div>Since the grammar in PWG MSN 2.1 section 5.1 only includes prefix=
es 'iso', 'jis', 'jpn', 'prc', 'om' and 'roll' for metric sizes, all=
but the first three and the fifth option probably disqualify, although th=
e prose mentions that those are the "currently" defined classes of namespa=
ces and jurisdictions. Since it is not part of an ISO standard, the fifth =
option is also out, but what if one wanted to add historic systematic size=
s like 4A0, A11, A12, A13, B11, B12, B13 or the D series once specified in=
DIN 476? </div><div>The original question boils down to: should there be =
a prefix before the label `e4` and should it give the standards body (DIN)=
or the country (Germany: DEU, GER)?</div><div><br></div><div>Similarily, =
the Canadian compromise size PA4 from withdrawn national standard CAN=
2-200.2-M79 could probably be registered by one of the following media siz=
e names:</div><div><br></div><div>om_pa4_210x280mm</div><div>om_can-pa4_21=
0x280mm</div><div>om_canada-pa4_210x280mm<br></div><div><br></div><div>Alt=
hough no name currently seems to contain a dot '.' outside the dimensions,=
it seems to be allowed by the grammar for `base-name`. Elongated si=
zes specified by ISO 5457:1999 would therefore be, if someone wanted =
to register them:</div><div><br></div><div>iso_a1.0_594x1189mm</div><div>i=
so_a2.0_420x1189mm</div><div>iso_a2.1_420x841mm</div><div>iso_a3.0_297x118=
9mm</div><div>iso_a3.1_297x841mm</div><div>iso_a3.2_297x594mm</div><div><b=
r></div><div>Although the name "Weltformat" apparently is still in colloqu=
ial use in some national advertisment printing businesses, particularly in=
Switzerland, there is disagreement about the proper size. Original source=
s seem to have specified the only ever-relevant number 14 (or XIV in Roman=
numerals) of the 'world format' as 905 by 1280 millimeters, whereas APG/S=
GA co-lists its F4 size of 895 by 1280 millimeters under that name. Not co=
nsidering sibling formats, this still leaves a plethora of options and I w=
ould not know which to choose:</div><div><br></div><div>om_welt_905x1280mm=
</div><div><div>om_welt-14_905x1280mm</div><div><div>om_welt-xiv_905x1280m=
m</div><div>om_weltformat_905x1280mm</div><div>om_weltformat-14_905x1280mm=
</div><div>om_weltformat-xiv_905x1280mm</div><div>om_world_905x1280mm</div=
><div>om_world-14_905x1280mm</div><div>om_world-xiv_905x1280mm</div><div>o=
m_world-format_905x1280mm</div><div>om_world-format-14_905x1280mm</div></d=
iv><div>om_world-format-xiv_905x1280mm</div><div><br></div><div>om_f4_895x=
1280mm</div><div>om_swiss-f4_895x1280mm</div><div>om_apg-f4_895x1280mm</di=
v></div><div>om_sga-f4_895x1280mm</div><div>om_apgsga-f4_895x1280mm</div><=
div>om_apg-sga-f4_895x1280mm</div><div><br></div></body></html>
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