Water Sampling Equipment

	Salinity Refractometer			Secchi Disks
	Hydrometer			Water Sampler
	Plankton Nets			Bottom Sampling Dredge
	Armored Thermometer			Dissolved Oxygen / Temperature Sampler

Salinity Refractometer

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Hydrometer

Precision specific gravity hydrometer for salinity measurement. Glass with scale graduated in divisions of 0.0005 from 1.0000 to 1.0700 Specific Gravity (SG); for salinity measurement from 0.0 to 43.6 ppt. Each unit checked against NIST certified standard and supplied in a plastic tube. Includes table to convert reading to salinity in parts per thousand (ppt). Length 330 mm (13"), scale length is 140 mm (5-1/2"). Use with Hydrometer Jar (Code 3-0024) and Armored Thermometer (Code 1066).

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Hydrometer Jar

Molded clear plastic 500 mL cylinder with a broad base for good stability. The clear, durable (PMP) cylinder is never slippery, even when wet.

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Hydrometer Kit

Includes both hydrometer (3-0011) and jar (3-0024).

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Cone-shaped nets of 10 mesh, 153 micron nylon cloth. Minute plankton are collected and can be observed in the removable, clear conical graduated tube attached at the end of the net. Two tubes are provided. The net mouth is braced by a sturdy stainless steel ring and harness.

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Armoured Thermometer

A precision, NON-MERCURY thermometer, furnished in a protective plastic jacket with window opening. Engraved graduations on white tubing increase readability over the full range of -5° to 45°C in 0.5° increments.

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Item Description	Order Code
Thermometer	1066

Convenient 10 pack pricing available.

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Secchi Disks

Used to determine turbidity or degree of visibility in natural waters. The weighted 20 cm diameter disk has a braided stretch-resistant line that is marked every half meter and at every meter up to 20 meters.

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Item Description	Order Code
Disk w/ black & white quadrants & calibrated line	0171-CL
Black & white Secchi (disk only)	0171
White Secchi (disk only)	1062

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Water Sampler

A one-liter sampler of clear acrylic furnished with a 20 meter calibrated line and a lead collar which assures rapid descent and minimal drift. A brass messenger triggers a release mechanism to seal the sample chamber with two fitted rubber plungers at the desired sampling depth. The built-in side outlet and flexible tube allows for removal of the water sample.

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Item Description	Order Code
JT-1 Water Sampler	1077

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Bottom Sampling Dredge

Stainless steel sampler is designed for use on soft bottoms (sand or silt). A simple trigger holds the sampler open while lowering to cover a uniform area. Scissor design closes sampler, retrieving a volume of sediment to the surface for analysis.

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Item Description	Order Code
Bottom Sampling Dredge	1097

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Dissolved Oxygen/Temperature Sampler

Collects samples at specific depths. Ideal for the collection of dissolved oxygen samples. When trip line is pulled, dissolved oxygen sample bottle will fill, overflow and flush more than three times to insure a representative sample. During retrieval, decreasing water pressure prevents exchange of air and water with sample. Excess water in sample chamber can be used for additional tests such as pH. Interior chamber accommodates our armored thermometer (not included) for accurate sample temperature readings. Accommodates the same sample bottle used in our popular DO kits. Use with braided line and weight. (Weight not included.)

Sounding Lead & Calibrated Line

This heavy nylon line is marked from 020 meters and has a spring clip for easy attachment to a Secchi Disk, plankton net or a lead weight. A 2 lb. (0.9Kg) lead weight is provided. The nylon line wraps conveniently around an ethafoam block which also acts as a float to prevent accidental loss.

TO VIEW INSTRUCTIONS CLICK ON ORDER CODE

Item Description	Order Code
Dissolved Oxygen/Temperature Sampler	3-0026
Sounding Lead & Calibrated Line	1064-G

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