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WTW - 600311 - WTW Turb 355 IR-Portable; Nephelometric measurements acc. ISO 7027 / DIN EN 27027 with automatic 1-4 point calibration and instruction manual.

  • MFR SKU: 600311
  • ITEM #: 6295552
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ITEM #: 6295552
Nephelometric or transmittance measuring - The nephelometric measurement at 90° scattered light is advantageous for lower turbidity, whereas the transmission measurement at 180° is beneficial for medium to high turbidity values: With increasing turbidity, restray and scattering effects between particles are growing bigger. The reduction of light intensity in this case leads to a more accurate result than a 90° nephelometric measurement. Therefore, lab meters for high values are equipped...
ITEM #: 6295552
Nephelometric or transmittance measuring - The nephelometric measurement at 90° scattered light is advantageous for lower turbidity, whereas the transmission measurement at 180° is beneficial for medium to high turbidity values: With increasing turbidity, restray and scattering effects between particles are growing bigger. The reduction of light intensity in this case leads to a more accurate result than a 90° nephelometric measurement. Therefore, lab meters for high values are equipped with several measuring options: Ratio modes calculate the final result from different measured angles. For ratiometric measurements, there is no specific standard method to be followed; rather, procedures are established by the application or industry.
White light has a higher sensitivity for small particles, however, the inherent coloration of the solution has a stronger disturbing effect in this case. The IR measurement is required by DIN ISO, the white light measuring by US EPA.
WTW Turb 355 IR-Portable; Nephelometric measurements acc. ISO 7027 / DIN EN 27027 with automatic 1-4 point calibration and instruction manual.
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WTW - 600311 - WTW Turb 355 IR-Portable; Nephelometric measurements acc. ISO 7027 / DIN EN 27027 with automatic 1-4 point calibration and instruction manual.

  • Item #: 6295552
  • MFR SKU: 600311

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