ISBD(NBM) - IFLA

5.3.4 In the case of items requiring the use of equipment (discs, cassettes, reels of tape or
motion pictures), the principal dimensions given are those of the item itself, irrespective of the external
dimensions of any container such as an album or sleeve (for the treatment of a container for a set of such
items see 5.3.7). Measurements of the diameter of circular items (discs, reels, etc.) are given without
additions.
e.g.
. – 1 sound disc (53 min.) : 33 1/3 rpm, stereo ; 30 cm
. – 1 sound reel (100 min.) : 19 cm/s., 4 track, mono ; 12.7 cm
. – 1 sound disc (CD) (60 min.) : stereo ; 12 cm
The statement is omitted in the case of materials (e.g. sound cassettes and cartridges of a standard type)
whose dimensions are implicit in other parts of the description.
These standard dimensions are:
Cassette 10 x 6.4 x 1.2 cm
Cartridge 13.5 x 10 x 2.2 cm
5.3.5 When a sound disc is of a non-standard shape (i.e. when the playing surface has an
irregularly shaped surround), the diameter of the playing surface is given in the physical description area.
A statement regarding the external dimensions of the item is given in a note (see 7.5).
e.g.
. – 1 sound disc (11 min.) : 45 rpm., mono ; 17.5 cm
Note: Disc impressed on rectangular surface, 20 x 20 cm
5.3.6 In the case of items employing film or magnetic tape, the gauge of the film or width of the
tape are given. Super 8 mm and standard 8 mm film are recorded as such. Measurements which are
implicit in other parts of the description (e.g. tape width for a standard sound cassette or cartridge) are
omitted.
These standard widths are:
Sound reel 6.3 mm
Sound cassette 3.8 mm
Sound cartridge 6.3 mm
e.g.
. – 6 microfilm reels : Kalvar, cine mode ; 35 mm
. – 1 sound reel (45 min.) : 19 cm/s., 2 track, mono ; 12.7 cm, 6 mm tape
. – 1 film loop (4 min., 10 sec.) : col. ; super 8 mm
5.3.7 For boxed materials such as multi-media, sets of sound discs, etc., the dimensions of the
container may be given. Alternatively, the phrase "in container" (or its equivalent in another language
and/or script) may be used, or the statement may be omitted.
e.g.
. – 1 laboratory kit (various pieces) ; in container, 12 x 36 x 20 cm
. – 5 sound discs (256 min.) : 33 1/3 rpm, stereo ; 30 cm in container
5.3.8 When the item is available in alternative formats differing at the level covered by this
element., the dimensions in question are omitted from the physical description area and given in area 8 or
in a note (see 7.5).
e.g.
. – 1 film loop (4 min., 30 sec.) : col.
Note: Available in standard 8 mm and super 8 mm versions.
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