General Catalogue Chemistry - BECO Internacional LTDA.

Radioactivity
667 918
Geiger counter
Compact instrument for measuring beta, gamma,
x-ray and neutron radiation with a considerably
higher sensitivity than conventional Geiger
counters and probes. The flat shape of the
counter makes it ideal for contamination measurements,
similar to a surface counter. Pulses
indicated via loudspeaker plus direct analog
meter. Enables direct counting of individual
events (i.e. including the background effect) in
conjunction with the pulse counter (> 667
919 ). Complete with lead with 4-mm plugs for
connection to counters with pulse input, e.g.
counter P ( 575 45 ), Counter S (> 575 47 ) or
CASSYpack E (> 524 007 ). Battery operated
for portable, on-site use. Sturdy plastic housing.
Comes complete with battery.
Measuring ranges:0 to 3 mrem h-1
0-3 mR h-1
0 to 30 mSv h -1
Measurement accuracy: ±30%
Battery type: 9 V/IEC 6 F 22 (> 685 45 )
Dimensions: 155 mm x 75 mm x 45 mm
Weight: 350 g
667 919
Pulse counter
For expanding the functionality of the Geiger
counter (> 667 918) and counting individual
events even at high pulse frequencies.
Measure values displayed either constantly or
with reference to a time interval (1 or 10 minutes).
With quartz-stabilized time base. Power supply
via the Geiger counter (> 667 918)
Display: pulse count or rate
Counting volume: 6 decades
Digit height: 9 mm (7-segment LED)
Power supply:
via Geiger counter (> 667 918)
Dimensions: 155 mm x 75 mm x 45 mm
Weight: approx. 0.2 kg
666 300
667 920
Case for Geiger counter (> 667 918 )
and the pulse counter (> 667 919)
Plastic case with foam inlay.
Dimensions (W x H x D): 30 cm x 20 cm x 8 cm
666 301
Membrane filtration unit
For microbiological work, consisting of filtration
unit (clear polycarbonate, suitable for autoclaving)
and catch basin
Filter diameter: 47 mm
Working volume: 250 ml
Operating press.: max. 2 bar overpressure
Sterilization: 120°C autoclave temperature
Dimensions: 250 mm high, 100 mm dia.
Weight: 0.3 kg
666 300
667 920
667 918
Membrane filtration set
Especially for water and soil analysis, complete
with aluminium carrying case. The case contains
all the equipment, consumables and a
manual necessary for the following biological
and chemical investigations:
Detection of microorganisms
- in water, in air, in soil
The effects of antibiotics
Gas formation during alcohol fermentation
Detection of yeast in foods
Growth of bacteria at different temperatures
Detection of
microorganims
667 186
Vacuum tubing
Inside diameter: 8 mm
Thickness of wall: 5 mm
Length: 1 m
Material: rubber
667 026
Tweezers
Pointed , nickel-plated steel
Length: 130 mm
ecology
667 919
LEYBOLD DIDACTIC ·GENERAL CATALOGUE CHEMISTRY
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