ASTM-D6855 2010

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D6855-10 Standard Test Method for Determination of Turbidity Below 5 NTU in Static Mode

Published By	Publication Date	Number of Pages
ASTM	2010	14

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Category: ASTM

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Description

1.1 This test method covers the static determination of turbidity in water (see 4.1).

1.2 This test method is applicable to the measurement of turbidities under 5.0 nephelometric turbidity units (NTU).

1.3 This test method was tested on municipal drinking water, ultra-pure water and low turbidity samples. It is the user’s responsibility to ensure the validity of this test method for waters of untested matrices.

1.4 This test method uses calibration standards are defined in NTU values, but other assigned turbidity units are assumed to be equivalent.

1.5 This 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 1.0 NTU formazin standard is also equal to a 1.0 FNU standard, a 1.0 FNRU standard and so forth.

1.6 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. Refer to the MSDSs for all chemicals used in this procedure.

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PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Summary of Test Method Significance and Use Interferences Apparatus
3	TABLE 1 FIG. 1
4	FIG. 2
5	Purity of Reagents Reagents FIG. 3
6	Safety
7	Sampling and Sample Preservation Calibration and Calibration Verification Procedure for the Measurement of Water Turbidity
8	Report Quality Control/Quality Assurance TABLE 2
9	Precision and Bias Keywords TABLE 3
10	X1. CLEANING AND MAINTENANCE OF TURBIDITY SAMPLE CELLS AND CAPS X1.1 Introduction X1.2 Cleaning X1.3 Maintenance X2. PROCEDURE FOR SEASONING GLASSWARE WHEN PREPARING CALIBRATION STANDARDS X2.1 Introduction X2.2 Procedure
11	X3. STABILITY OF FORMAZIN X3.1 X4. CRITICAL VALUES OF F TABLE X4.1 TABLE X3.1 TABLE X3.2
12	TABLE X4.1
13	X5. SELECTION CRITERIA FLOWCHART FOR TURBIDIMETERS X5.1 X5.2 REFERENCES FIG. X5.1

Additional information

Standard Title	D6855-10 Standard Test Method for Determination of Turbidity Below 5 NTU in Static Mode
Published Code	ASTM
Publication Date	2010
Pages Count	14

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ASTM-D6855 2010

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