General Catalogue Chemistry - BECO Internacional LTDA.

ecology
666 327 666 328
668 311
Evaluation of water quality
based on biological indicators
73 pages, A4 size, in German
By Dr. W. Xylander
This book describes the way in which to take
samples and hints are provided on the various
methods of evaluation and frequently encountered
indicator organisms; a simple key for
determining the kind of organism is included
which specifically meets teaching requirements.
668 391
Investigation of all
ground and bush-living organisms
39 pages, A4 size, in German
By G. Stumpf
The book describes the methods for investigating
the areas in question and hints are given as
to important organisms and methods of investigation.
666 328
12 LEYBOLD DIDACTIC · GENERAL CATALOGUE CHEMISTRY
Sampling case for
ground and bush organisms
For investigation of the ground and bush zones
as to the presence (type and quantity) of organisms.
With the equipment contained in this case
it is possible to equip up to four groups with
different collecting bottles. This case is an ideal
supplement to the sampling case for aquatic
organisms (> 666 327 ) as investigations
making use of the equipment from both cases
may cover areas close to the bodies of water,
thereby enabling comprehensive insights as to
the organisms living in a well-defined area.
Scope of delivery
1 Knock collector . . . . . . . . . . . . . . .666 370
1 Grazing catch net . . . . . . . . . . . . .666 371
1 Beetle sieve . . . . . . . . . . . . . . . . . .666 372
1 Suction exhaustor with nozzle . . .666 373
1 Sieve, plastic,
2 mm mesh, 160 mm dia. . . . . . .666 351
1 Selection dish, white, plastic . . . . .666 376
15 Snap-cap bottles, 50 ml . . . . . . . .661 252
3 Miniature separating tanks . . . . . .665 563
1 Folding pocket magnifier,
7 x magnification . . . . . . . . . . . . . .667 128
1 Pair of tweezers, blunt . . . . . . . . .662 034
1 Plastic foil, white, 1 m 2
additionally recommended:
1 Extension stick . . . . . . . . . . . . . . . . 662 309
666 327
Sampling case for aquatic organisms
The chemical and physical examination of
bodies of water provides important information
on their momentary condition.
To obtain information on the long-term changes
in a body of water, however, it is necessary to
undertake a biological analysis as well. An
investigation based on certain “indicator organisms“
is highly suitable for determining the longterm,
general condition of a body of water.
The sampling case for aquatic organisms
contains equipment for four groups, making it
possible to take samples of water and examine
them for the presence of organisms and
to store the samples and the organisms they
contain.
Scope of delivery
1 Brush, size 2 . . . . . . . . . . . . . . . . .662 335
1 Brush, size 8 . . . . . . . . . . . . . . . . .662 341
4 Tweezers, blunt . . . . . . . . . . . . . .662 034
15 Pasteur pipettes . . . . . . . . . . . . . .665 950
15 Dropper teats . . . . . . . . . . . . . . . .665 954
10 Block dishes . . . . . . . . . . . . . . . . .662 006
4 Preparation needles . . . . . . . . . . .662 011
4 Sieves, 1 mm mesh, 70 mm dia. . .666 350
4 Sieves, 2 mm mesh,160 mm dia. .666 351
1 Aquarium thermometer . . . . . . . . .662 295
10 Snap-cap bottles, 50 ml . . . . . . . .661 252
1 Wash bottle, 1l . . . . . . . . . . . . . . .661 244
5 Wide-neck plastic bottles, 250 ml . .661 232
1 Plankton net, mesh, 105 µm . . . .662 308
1 Selection dish, white, plastic . . . . .666 376
additionally recommended:
1 Extension stick . . . . . . . . . . . . . . . . 662 309