ASTM D 6698-07 Standard Test Method for On-Line Measurement of Turbidity Below 5 NTU in Water (PDF Download)

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1.1 This test method is applicable to the on-line measurement of turbidity under 5 nephelometric turbidity units (NTU) in water.1.2 It is the user's responsibility to ensure the validity of this test method for waters of untested matrices.1.3 In this test method calibration standards are defined in NTU values, but other assigned turbidity units are assumed to be equivalent.1.4 This 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 1FNU standard, a 1 FNRU standard and so forth.This 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 and health practices and determine the applicability of regulatory limitations prior to use.

This standard is referenced in the 2012 International Green Construction Code™.

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1.1 This test method is applicable to the on-line measurement of turbidity under 5 nephelometric turbidity units (NTU) in water.1.2 It is the user's responsibility to ensure the validity of this test method for waters of untested matrices.1.3 In this test method calibration standards are defined in NTU values, but other assigned turbidity units are assumed to be equivalent.1.4 This 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 1FNU standard, a 1 FNRU standard and so forth.This 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 and health practices and determine the applicability of regulatory limitations prior to use.

This standard is referenced in the 2012 International Green Construction Code™.

Pages 10
Publisher ASTM International
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