Manual of Petroleum Measurement Standards Chapter 10.6

Standard Test Method for Water and Sediment in Fuel Oils by the Centrifuge Method (Laboratory Procedure)

FIFTH EDITION, AUGUST 2013

REAFFIRMED, MAY 2016

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Foreword

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Contents

1. Scope 1

2. Referenced Documents 1

3. Summary of Test Method 2

4. Significance and Use 2

5. Apparatus 2

6. Reagents 3

7. Sampling 3

8. Procedure 3

9. Calculation 4

10. Report 4

11. Precision and Bias 4

12 Keywords 6

Annex A1 (Mandatory Information) Procedure to Water-saturate Toluene 6

Figures

1. Eight-Inch (203 mm) Centrifuge Tube 2

2. Procedure for Reading Water and Sediment When Using an ASTM 100 mL Cone-Shaped

Centrifuge Tube 5

3 Precision Curves for Centrifuge Tube Methods. 6

A1.1 Solubility of Water in Toluene 6

Tables

1. Centrifuge Tube Calibration Tolerances for 203-mm (8-in.) Tube 3

2. Rotation Speeds Applicable for Centrifuges of Various Diameters of Swing 4

3. Expression of Results, mL 4

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Designation: D1796 − 11 (Reapproved 2016)

Manual of Petroleum Measurement Standards (MPMS), Chapter 10.6

Standard Test Method for

Water and Sediment in Fuel Oils by the Centrifuge Method (Laboratory Procedure)1

This standard is issued under the fixed designation D1796; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.

This standard has been approved for use by agencies of the U.S. Department of Defense.

1. Scope

   1. This test method describes the laboratory determination of water and sediment in fuel oils in the range from 0 % to 30 % volume by means of the centrifuge procedure.

      NOTE 1—With some types of fuel oils such as residual fuel oils or distillate fuel oils containing residual components, it is difficult to obtain water or sediment contents with this test method. When this situation is encountered, Test Method D95 (API MPMS Chapter 10.5) or Test Method D473 (API MPMS Chapter 10.1) may be used.

      NOTE 2—API MPMS Chapter 10.6 (Test Method D1796) along with API MPMS Chapter 10.3 (Test Method D4007) formerly superseded API Standard 2548.

   2. The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

   3. 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 appro- priate safety and health practices and determine the applica- bility of regulatory limitations prior to use. For a specific precautionary statement, see 6.1.

      
      

2. Referenced Documents

   1. ASTM Standards:2

      D95 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation (API MPMS Chapter 10.5)

      
      

      1 This test method is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and the API Committee on Petroleum Measurement and is the direct responsibility of Subcommittee D02.02

      /COMQ the joint ASTM-API Committee on Hydrocarbon Measurement for Custody Transfer (Joint ASTM-API). This test method has been approved by the sponsoring committees and accepted by the Cooperating Societies in accordance with established procedures.

      Current edition approved June 1, 2016. Published July 2016. Originally approved in 1960. Last previous edition approved in 2011 as D1796 – 11ɛ1. DOI: 10.1520/ D1796-11R16.

      2 For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards volume information, refer to the standard’s Document Summary page on the ASTM website.

      D473 Test Method for Sediment in Crude Oils and Fuel Oils by the Extraction Method (API MPMS Chapter 10.1)

      D4007 Test Method for Water and Sediment in Crude Oil by the Centrifuge Method (Laboratory Procedure) (API MPMS Chapter 10.3)

      D4057 Practice for Manual Sampling of Petroleum and Petroleum Products (API MPMS Chapter 8.1)

      D4177 Practice for Automatic Sampling of Petroleum and Petroleum Products (API MPMS Chapter 8.2)

      D5854 Practice for Mixing and Handling of Liquid Samples of Petroleum and Petroleum Products (API MPMS Chap- ter 8.3)

      D6304 Test Method for Determination of Water in Petro- leum Products, Lubricating Oils, and Additives by Cou- lometric Karl Fischer Titration

      E542 Practice for Calibration of Laboratory Volumetric Apparatus

   2. API Standards:3

MPMS Chapter 8.1 Practice for Manual Sampling of Petro- leum and Petroleum Products (ASTM Practice D4057) MPMS Chapter 8.2 Practice for Automatic Sampling of

Petroleum and Petroleum Products (ASTM Practice D4177)

MPMS Chapter 8.3 Practice for Mixing and Handling of Liquid Samples of Petroleum and Petroleum Products (ASTM Practice D5854)

MPMS Chapter 10.1 Test Method for Sediment in Crude Oils by the Extraction Method (ASTM Test Method D473)

MPMS Chapter 10.3 Test Method for Water and Sediment in Crude Oil by the Centrifuge Method (Laboratory Proce- dure) (ASTM Test Method D4007)

MPMS Chapter 10.5 Test Method for Water in Petroleum Products and Bituminous Materials by Distillation (ASTM Test Method D95)

3 Published as Manual of Petroleum Measurement Standards. Available from the American Petroleum Institute, 1220 L St., N.W., Washington, DC 20005.

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