Turbidity Meters

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Turbidity is used as a water quality indicator, particularly for drinking water. Turbidity meters measure the loss in light beam intensity as it passes through, of a fluid containing suspended particles. Ideally, for a water sample, the suspended particles should allow the incident light to scatter at an angle of 90 degrees with respect to the light source, however, according to the particle size, the angle of light differs. A smaller angle of scatter indicates larger particles and hence a highly turbid water sample. Supplying the calculated loss directly related to light particles scattering and absorbing, the tools come in desktop or portable styles. Boasting advanced features, the devices offer a high degree of ease while employed as well as reproducible results. The turbidity meters transport the collected data to other systems for further review. Turbidity is often measured by Nephelometric Turbidity Unit (NTU) or Formazin Turbidity Unit (FTU) and the dry-weight of suspended materials is indicated by Total Suspended Solids (TSS).

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Catalog Number: (470017-306)

Economy Digital Turbidity Meter

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Description: Determine How Many Particulates are in the Stream

Catalog Number: (470323-888)

Turbitidy Tube

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Description: Easily measure the cloudiness of a fluid.

Turbidity Tube

Description: Estimate stream quality as it relates to solids in the water. This Turbidity Tube is made from 1-3/4" (4.4 cm) clear polycarbonate tubing and is marked with easy to read black numbers on a white tape; tape is marked in centimeters. A drain tube with a crimp are supplied so the sample can be drained off until the Secchi pattern on the bottom just appears. The height of the water column is then recorded. Overall length of the tube is 24" (61 cm). The optional Transparency Tube (item #67311-46) allow you to measure turbidity in streams where a secchi disk can't be used--simply fill the tube with water and look down. Each clear polycarbonate tube features a centimeter scale on one side and a secchi disk design, 2" (4.5 cm) in diameter, on the bottom. The secchi design is screwed to a rubber stopper that removes for cleaning. Drain the tube with the drain hose and attached finger crimp. Ideal for the GLOBE program!