ASTM D 6698 : 2012
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Standard Test Method for On-Line Measurement of Turbidity Below 5 NTU in Water
Hardcopy , PDF
11-11-2014
English
01-06-2012
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.
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