ASTM-D6698 2007
$40.63
D6698-07 Standard Test Method for On-Line Measurement of Turbidity Below 5 NTU in Water
Published By | Publication Date | Number of Pages |
ASTM | 2007 | 10 |
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.
PDF Catalog
PDF Pages | PDF Title |
---|---|
1 | Scope Referenced Documents Terminology |
2 | Summary of Test Method Significance and Use Safety Interferences Apparatus |
3 | TABLE 1 |
4 | FIG. 1 FIG. 2 |
5 | Purity of Reagents
FIG. 3 |
6 | Instrument Installation, Sample Lines and Sampling FIG. 4 |
7 | Calibration and Calibration Verification FIG. 5 |
8 | Procedure Results Precision and Bias Keywords X1. STABILITY OF FORMAZIN X1.1 TABLE X1.1 |
9 | X2. PROCEDURE FOR SEASONING GLASSWARE WHEN PREPARING CALIBRATION STANDARDS X2.1 X2.2 X3. SELECTION CRITERIA FLOWCHART FOR TURBIDIMETERS X3.1 Introduction X3.2 TABLE X1.2 |