ISO 7027:2016
ISO 7027:2016 Water quality – Determination of turbidity – Part 1: Quantitative methods
CDN $131.00
Description
ISO 7027-1:2016 specifies two quantitative methods using optical turbidimeters or nephelometers for the determination of turbidity of water:
a) nephelometry, procedure for measurement of diffuse radiation, applicable to water of low turbidity (for example drinking water);
b) turbidimetry, procedure for measurement of the attenuation of a radiant flux, more applicable to highly turbid waters (for example waste waters or other cloudy waters).
Turbidities measured according to the first method are presented as nephelometric turbidity units (NTU). The results typically range between <0,05 NTU and 400 NTU. Depending on the instrument design, it can also be applicable to waters of higher turbidity. There is numerical equivalence of the units NTU and formazin nephelometric unit (FNU).
Turbidity measured by the second method is expressed in formazin attenuation units (FAU), results typically range between 40 FAU and 4 000 FAU.
Edition
1
Published Date
2016-06-09
Status
PUBLISHED
Pages
9
Language
English
Format
Secure PDF
Secure – PDF details
- Save your file locally or view it via a web viewer
- Viewing permissions are restricted exclusively to the purchaser
- Device limits - 3
- Printing – Enabled only to print (1) copy
See more about our Environmental Commitment
Abstract
ISO 7027-1:2016 specifies two quantitative methods using optical turbidimeters or nephelometers for the determination of turbidity of water:
a) nephelometry, procedure for measurement of diffuse radiation, applicable to water of low turbidity (for example drinking water);
b) turbidimetry, procedure for measurement of the attenuation of a radiant flux, more applicable to highly turbid waters (for example waste waters or other cloudy waters).
Turbidities measured according to the first method are presented as nephelometric turbidity units (NTU). The results typically range between <0,05 NTU and 400 NTU. Depending on the instrument design, it can also be applicable to waters of higher turbidity. There is numerical equivalence of the units NTU and formazin nephelometric unit (FNU).
Turbidity measured by the second method is expressed in formazin attenuation units (FAU), results typically range between 40 FAU and 4 000 FAU.
Previous Editions
Can’t find what you are looking for?
Please contact us at:
Related Documents
-
ISO 22908:2020 Water quality – Radium 226 and Radium 228 – Test method using liquid scintillation counting
CDN $310.00 Add to cart -
ISO 4702:2024 Water quality – Zirconium 93 – Test method using ICP-MS
CDN $195.00 Add to cart -
ISO 22017:2020 Water quality – Guidance for rapid radioactivity measurements in nuclear or radiological emergency situation
CDN $263.00 Add to cart -
ISO 13169:2018 Water quality – Uranium – Test method using alpha liquid scintillation counting
CDN $195.00 Add to cart
