Piston-Type Hand Sampler-
US BMH-53
click to enlarge
This sampler is used to collect a sample from the bed of a
shallow stream which may be waded. The sampler contains a cylinder
2 inches (5 cm) in diameter and 8 inches (20 cm) long, which is
pressed into the streambed to collect the sample. A piston is
located inside the cylinder. The overall length of the sampler is
46 inches
(117 cm).
The piston rod with a handle on its upper end passes through
the sampler frame. The piston retracts when the cylinder is
pressed into bed material. The suction created by the piston holds
the sample in the cylinder. The sample is pushed out of the
cylinder by the piston.
403-001 US BMH-53 25
lbs.
Bed-Material Samplers- US
BMH-60
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This is a 30-pound (13.6 kg) sampler used to collect samples
from the bed of a stream, lake or reservoir. Penetration of the
bed material is approximately 1 3/4 inches (4.4. cm). The sampler
can be suspended from a handline or sounding reel. The body of the
sampler is made of aluminum, is equipped with tail vanes, and is
approximately 22 inches (56 cm) long.
The sampling bucket accommodates about 175 cc of material. The
bucket, in closing, penetrates the streambed and completely
encloses a sample of material. Gaskets prevent loss or
contamination of the trapped sample. The weight of this sampler
limits its use to tranquil streams and moderate or slightly
compacted bed materials. Each sampler is shipped in a hinged,
wooden box for storing and transporting. The sampler can be
epoxy-coated if specified.
403-004 US BMH-60 55
lbs.
Bed-Material Samplers- US
BM-54
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This is a 100-pound (46 kg) sampler used to collect samples
from the bed of a river or reservoir of any depth. The sampler is
made of cast steel, is equipped with tailfins and is approximately
22 inches (56 cm) long.
When the sampler is supported by a steel cable, the bucket may
be cocked, that is, set in the open position, for taking a bed
sample. When tension on the cable is released by resting the
sampler on the riverbed, the bucket snaps shut, taking a sample.
The sample is collected from the top 2 inches (5 cm) of a
streambed. Each sampler is shipped in a hinged, wooden box
suitable for storing and transporting.
403-007 US BM-54 140
lbs.
Handheld, Rotary-Bucket Bed Material Sampler
- US RBMH-80
click pictures to enlarge
The US RBMH-80 is a hand-operated sampler that has a
semi-cylindrical bucket for collecting the bed material samples.
Operation is simple: the lever on the handle opens and closes the
bucket. The sampled material is protected from erosion while
rising through the water column. It is constructed from
lightweight aluminum and uses a BM-54 sample bucket.
The bucket size is 8 cm by 7 cm and collects a sample to a
depth of 5 cm.
403-009 US RBMH-80 18
lbs.
