General Catalogue Chemistry - BECO Internacional LTDA.

measuring equipment – length
Instruments for length measurement
311 02
Metal scale
With alternating white and red background for
easy reading from a distance.
Length: 1 m
Graduation: cm, mm easily estimated,
dm indicated by colours
Width: 25 mm approx.
311 22
Vertical scale
With cursors, for use in experiments on
falling objects and spring pendulums, with
stand rod at one end for vertical mounting
to stand bases.
Length: 1 m
Graduation: mm, cm, dm (indicated by colours)
Width: 25 mm approx.
Additionally required:
Saddle base . . . . . . . . . . . . . . . . . . . . 300 11
311 03
Wooden ruler
With double scale on either side. Can be
clamped in base > 300 11.
Length: 1 m/39 inches
Graduation: cm, mm, 1 /8 inch
Width: 25 mm approx.
311 77
311 02
311 22
311 03
311 77
460 97
164 LEYBOLD DIDACTIC · GENERAL CATALOGUE CHEMISTRY
Steel tape measure
With automatic rewind.
Graduation: cm and inch
Range: 2 m divided in cm and mm
78 inches subdivided in 1 /16¨
Diameter: 50 mm
311 86
460 97
Scaled metal rail, 0.5 m long
With clearly graduated scale which is well visible
even from a larger distance; dm graduation
by red and white fields.
Scales: mm, cm and dm divisions
Width: 25 mm
311 86
Spherometer
For measuring thicknesses and determining
radii of curvature, e.g. of lenses.
Range: 0 to 25 mm ( - 10 mm to + 15 mm)
Distance between feet: 50 mm
Pitch of micrometer screw: 0.5 mm
Micrometer head divisions:
250 (1 scale div. corresp. 0.002 mm)
Inaccuracy: 0.001 mm