BS EN 22768-1:1993 is intended to simplify
drawing indications and it specifies general
tolerances for linear and angular dimensions
without individual tolerance indications in four
tolerance classes.
NOTE 1 The concepts behind the general tolerancing of linear
and angular dimensions are described in annex A.
BS EN 22768-1:1993 applies to the dimensions of parts that are
produced by metal removal or parts that are formed
from sheet metal.
NOTE 2 These tolerances may be suitable for use with
materials other than metal.
NOTE 3 Parallel International Standards exist or are planned,
e.g. see ISO 80621) for castings.
BS EN 22768-1:1993 only applies for the following
dimensions which do not have an individual
tolerance indication:
a) linear dimensions (e.g. external sizes, internal
sizes, step sizes, diameters, radii, distances,
external radii and chamfer heights for broken
edges);
b) angular dimensions, including angular
dimensions usually not indicated, e.g. right
angles (90), unless reference to ISO 2768-2 is
made, or angles of uniform polygons;
c) linear and angular dimensions produced by
machining assembled parts.
BS EN 22768-1:1993 does not apply for the following dimensions:
a) linear and angular dimensions which are
covered by reference to other standards on
general tolerances;
b) auxiliary dimensions indicated in brackets;
c) theoretically exact dimensions indicated in
rectangular frames.
Cross References:BS EN 22768-2
ISO 8015
| File Size : | 1
file
, 330 KB |
| ISBN(s) : | 0580226042 |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 12 |
| Product Code(s) : | 316586, 316586, 00316586 |
| Published : | 11/15/1993 |
| Same As : | BS EN 22768-1:1993 |
