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ASTM D 6698 : 2024

Current

Current

The latest, up-to-date edition.

Standard Test Method for On-Line Measurement of Turbidity Below 5 NTU in Water

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

10-05-2024

€61.92
Excluding VAT

Committee
D 19
DocumentType
Test Method
Pages
11
PublisherName
American Society for Testing and Materials
Status
Current
Supersedes

1.1This test method is applicable to the on-line measurement of turbidity under 5 nephelometric turbidity units (NTU) in water.

1.2It is the user's responsibility to ensure the validity of this test method for waters of untested matrices.

1.3In this test method calibration standards are defined in NTU values, but other assigned turbidity units are assumed to be equivalent.

1.4This test method assigns traceable reporting units to the type of respective technology that was used to perform the measurement. Units are numerically equivalent with respect to the calibration standard. For example, a 1 NTU formazin standard is also equal to a 1 FNU (formazin nephelometric units) standard, a 1 FNRU (formazin nephelometric ratio units) standard, and so forth.

1.5The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.7This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D 6908 : 2006 : R2017 Standard Practice for Integrity Testing of Water Filtration Membrane Systems
ASTM D 7725 : 2017 : R2023 Standard Test Method for the Continuous Measurement of Turbidity Above 1 Turbidity Unit (TU)
ASTM D 7285 : 2006 : R2017 Standard Guide for Recordkeeping Microfiltration and Ultrafiltration Systems
ASTM E 2635 : 2022 Standard Practice for Water Conservation in Buildings Through In-Situ Water Reclamation
ASTM D 4410 : 2016 Terminology for Fluvial Sediment
ASTM D 4188 : 2017 Standard Practice for Performing Pressure In-Line Coagulation-Flocculation-Filtration Test in Water
ASTM D 7726 : 2011 : R2023 Standard Guide for The Use of Various Turbidimeter Technologies for Measurement of Turbidity in Water

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