Talk:ISO 216

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[edit] Merge Silver rectangle into ISO 216?

I propose the merger for two reasons:

  1. There is little that can be said about silver rectangles. Unlike golden rectangles, which are alleged to crop up everywhere and have a distinguished history, silver rectangles are of limited interest. The folding property should be described at ISO 216 anyway.
  2. The name "silver rectangle" is both ambiguous and unfortunate. It is unfortunate because it is not a rectangle with the proportions of the silver ratio, as is suggested by the golden ratio/golden rectangle analogy. It is ambiguous because it is sometimes defined by root2 and sometimes by 1+root2 (the silver ratio), and there are not enough references to determine which is more common. I think the solution is to endorse neither, but to acknowledge in both ISO 216 and Silver ratio that they both have some claim to the name "silver rectangle".

Okay, I'm done. Melchoir 03:30, 21 March 2006 (UTC)

I think this is a good idea rafael.cosman

Okay, I'll get on it. Melchoir 04:18, 24 March 2006 (UTC)

Done. Rather than redirect Silver rectangle to either usage, I've made a somewhat unorthodox disambiguation page out of it. Melchoir 04:33, 24 March 2006 (UTC)

[edit] Inches

I propose that someone add inch equivalents to these measurements because Americans can't just see a measurement like 200mm and know how long that is. 71.227.254.181 23:57, 2 November 2006 (UTC)

Why single out Americans for special treatment? This is an international English encyclopedia.

Although I'm all for making Wikipedia as accessible as possible, I must admit that I can't seem to muster any compassion for someone who doesn't know what a mm is. Shinobu 09:46, 16 November 2006 (UTC)

Let them have their inches. I can relate to the frustration, as everytime I come across an imperial measurement, I need to use google to convert it into something I can cope with. Hence, I usually add change it to SI units with imperial units in parenthesis when I come across it; no reason why we shouldn't add imperial units even when they're not present. The absence of a dual standard can make people campy about it, leading to articles that are either useless to Americans and akward for older Brits, or articles that are useless to the rest of the world. Zuiram 01:00, 16 December 2006 (UTC)

Question: should the inch equivalents be based on the A4 rounded measurements or the formula? Using the formula there is a difference (due to a rounding error) for a few of the inch values. Jw6aa 03:47, 12 February 2007 (UTC)

Answer: From a practical point of view, the inch equivalent should be based on the final measurements, not the formula. The ISO 216 is not for theoretical use but for printing and the like, where the final page size is all that matters in the end. - Tommi Kovala (unregistered user) 10:38, 21 March 2007 (GMT)

There shouldn't be any conversion to the Imperial system. The rest of the world has gotten up to time in a practical system and american isn't special or anything. -30 is 0 celsius, which is easier? Was the guy who thought of that on opium (then again, he probably was)

[edit] Why two duplicate tables

The table on the left should be deleted. The lower table is really very nice, but the drawings should be scaled consistently. jcp 05:38, 5 April 2007 (UTC)

[edit] Mistakes??

I'm pretty sure that the side parallel to the shorter side is another one of the shorter sides. I think probably perpendicular is what is meant.

Well, there's two ways to give the direction of a fold - give the direction of the crease, or of the folding motion. This, of course, makes both ways pretty useless. It should probably be phrased "by halving the preceding paper size's longer dimension," or such. Darekun 03:34, 17 July 2007 (UTC)


[edit] 2007 Revision

Note that a Second Edition has been published as of 2007. I can't find information about what the revisions are, but someone should find out and update the article. —Preceding unsigned comment added by 69.46.127.11 (talk) 17:20, 10 September 2007 (UTC)

[edit] X vs. Y or Y vs. X

For example, in the table with the various paper sizes "A4= 210 x 297". This is "x" by "y", or let's call it "length x height." Then we see "A3 = 297 x 420" or "y" by "x" or "height" by "length." This information is formatted the same way on almost any page on the Internet I could find, many of which had "pre-Wikipedia" feel to them, so I'm not questioning the accuracy at all. Is there a standard (ISO, ANSI, DIN, etc.) for the order for giving length and height measurements? (use "height" as a replaceable term for "width" if necessary). I notice that A3 has a horizontal orientation while A4 has a vertical orientation, and they give their "x" and "y" dimensions oppositely. Any significance to that? I know that putting an A4 sheet in front of a drafter in vertical orientation would earn you a weird look from him, so the orientation's aren't arbitrary.

On a side note, is there a standardization for whether "width" or "height" is the correct term for the "y" dimension?

Also, is there a standard order for quoting length and height/width in general? It seems like the natural order would be length (x) by width/height (y), being that human field of vision is significantly more horizontally oriented than vertically, so I was surprised to see A3 (and the other "fat" sizes) given with "y" dimension first. Being that drawing/drafting standards are as ambitious as they are, I can't imagine that no one has thought of this aspect B4. (my apologies for both of those awful, awful paper standardization puns). —Preceding unsigned comment added by 68.38.154.77 (talk) 00:46, 15 September 2007 (UTC)

The "orientation" of A3 isn't in any way different from A4. It's just displayed horizontally in the image to fit all the sizes neatly in to same rectangle. Ossi 14:05, 8 November 2007 (UTC)

[edit] See Main Page....

there is a link to the main page on the sub-section on A4, but it's not a link.

can someone who isn't a code-noob (thats me) make this work properly!

thanks! —Preceding unsigned comment added by 128.243.253.111 (talk) 18:24, 6 February 2008 (UTC)

[edit] Formula looks broken?

I can't see the purpose of the " + 0.2 " in the formula which is described as yielding the "exact millimeter measurement" of the paper (the one with 1000/(...)) in it. Am I missing something? (I've never edited a wikipedia page before so am not about to try now :-). Neil Conway —Preceding unsigned comment added by 194.81.223.66 (talk) 13:33, 7 February 2008 (UTC)

[edit] A00 paper?

Why not mention of A00 paper? It is in common use in draughting offices.

Also, the C sizes are not covered by ISO 216 and should only be referenced from these page. No detailed description necessary. 79.77.113.193 (talk) 20:22, 19 April 2008 (UTC)

[edit] Thickness

How thick/thin is A4 paper - 1mm/1μm/1nm/1pm?

[edit] Materials

Are material properties the only contraints for paper thinness?

[edit] Tools

Is there any special pen/ink to write on thinner papers?

[edit] Laws

Is there any minimum limit on thinness of paper to be accepted as evidence in a court of law?Anwar (talk) 09:15, 9 May 2008 (UTC)