Paper Size #Standard

ISO 216 标准：国际标准化组织的ISO 216定义了今日世界上大多数国家所使用纸张尺寸的国际标准。它就是定义了知名的A4纸张尺寸的标准。

A系列		B系列		C系列
A0	841×1189	B0	1000×1414	C0	917×1297
A1	594×841	B1	707×1000	C1	648×917
A2	420×594	B2	500×707	C2	458×648
A3	297×420	B3	353×500	C3	324×458
A4	210×297	B4	250×353	C4	229×324
A5	148×210	B5	176×250	C5	162×229
A6	105×148	B6	125×176	C6	114×162
A7	74×105	B7	88×125	C7	81×114
A8	52×74	B8	62×88	C8	57×81
A9	37×52	B9	44×62	C9	40×57
A10	26×37	B10	31×44	C10	28×40

参考

ISO 216:2007： Writing paper and certain classes of printed matter — Trimmed sizes — A and B series, and indication of machine direction

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