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ASTM D6792-23

(Practice)

Standard Practice for Quality Management Systems in Petroleum Products, Liquid Fuels, and Lubricants Testing Laboratories

Standard Practice for Quality Management Systems in Petroleum Products, Liquid Fuels, and Lubricants Testing Laboratories

SIGNIFICANCE AND USE
4.1 A petroleum products, liquid fuels, and lubricants testing laboratory plays a crucial role in product quality management and customer satisfaction. It is essential for a laboratory to provide quality data. This document provides guidance for establishing and maintaining a quality management system in a laboratory.  
4.1.1 The word ‘customer’ can refer to both customers internal and external to the laboratory or organization.
SCOPE
1.1 This practice covers the establishment and maintenance of the essentials of a quality management system in laboratories engaged in the analysis of petroleum products, liquid fuels, and lubricants. It is designed to be used in conjunction with Practice D6299.
Note 1: This practice is based on the quality management concepts and principles advocated in ANSI/ISO/ASQ Q9000 standards, ISO/IEC 17025, ASQ Manual,2 and ASTM standards such as D3244, D4182, D4621, D6299, D6300, D7372, E29, E177, E456, E548, E882, E994, E1301, E1323, STP 15D,3 and STP 1209.4  
1.2 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, health, and environmental practices and determine the applicability of regulatory requirements prior to use.  
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

Status
Historical
Publication Date
28-Feb-2023
ICS
75.080 - Petroleum products in general
75.100 - Lubricants, industrial oils and related products
Technical Committee
D02 - Petroleum Products, Liquid Fuels, and Lubricants
Drafting Committee
D02.94 - Coordinating Subcommittee on Quality Assurance and Statistics
Current Stage
Ref Project

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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D6792 − 23 An American National Standard
Standard Practice for
Quality Management Systems in Petroleum Products, Liquid
1
Fuels, and Lubricants Testing Laboratories
This standard is issued under the fixed designation D6792; 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.
6
1. Scope* Straight; Type B, Blended) (Withdrawn 1979)
D3244 Practice for Utilization of Test Data to Determine
1.1 This practice covers the establishment and maintenance
Conformance with Specifications
of the essentials of a quality management system in laborato-
D4057 Practice for Manual Sampling of Petroleum and
ries engaged in the analysis of petroleum products, liquid fuels,
Petroleum Products
and lubricants. It is designed to be used in conjunction with
D4175 Terminology Relating to Petroleum Products, Liquid
Practice D6299.
Fuels, and Lubricants
NOTE 1—This practice is based on the quality management concepts
D4182 Practice for Evaluation of Laboratories Using ASTM
and principles advocated in ANSI/ISO/ASQ Q9000 standards, ISO/IEC
2
17025, ASQ Manual, and ASTM standards such as D3244, D4182,
Procedures in the Sampling and Analysis of Coal and
6
D4621, D6299, D6300, D7372, E29, E177, E456, E548, E882, E994,
Coke (Withdrawn 2010)
3 4
E1301, E1323, STP 15D, and STP 1209.
D4621 Guide for Quality Management in an Organization
6
1.2 This standard does not purport to address all of the
That Samples or Tests Coal and Coke (Withdrawn 2010)
safety concerns, if any, associated with its use. It is the
D6299 Practice for Applying Statistical Quality Assurance
responsibility of the user of this standard to establish appro-
and Control Charting Techniques to Evaluate Analytical
priate safety, health, and environmental practices and deter-
Measurement System Performance
mine the applicability of regulatory requirements prior to use.
D6300 Practice for Determination of Precision and Bias
1.3 This international standard was developed in accor-
Data for Use in Test Methods for Petroleum Products,
dance with internationally recognized principles on standard-
Liquid Fuels, and Lubricants
ization established in the Decision on Principles for the
D6617 Practice for Laboratory Bias Detection Using Single
Development of International Standards, Guides and Recom-
Test Result from Standard Material
mendations issued by the World Trade Organization Technical
D7372 Guide for Analysis and Interpretation of Proficiency
Barriers to Trade (TBT) Committee.
Test Program Results
E29 Practice for Using Significant Digits in Test Data to
2. Referenced Documents
Determine Conformance with Specifications
5
2.1 ASTM Standards: E177 Practice for Use of the Terms Precision and Bias in
D630 Specification for Olive Oil Chip Soap (Type A, ASTM Test Methods
E456 Terminology Relating to Quality and Statistics
E548 Guide for General Criteria Used for Evaluating Labo-
6
ratory Competence (Withdrawn 2002)
E882 Guide for Accountability and Quality Control in the
1
This practice is under the jurisdiction of ASTM Committee D02 on Petroleum
Chemical Analysis Laboratory
Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcom-
E994 Guide for Calibration and Testing Laboratory Accredi-
mittee D02.94 on Coordinating Subcommittee on Quality Assurance and Statistics.
Current edition approved March 1, 2023. Published April 2023. Originally
tation Systems General Requirements for Operation and
approved in 2002. Last previous edition approved in 2022 as D6792 – 22a. DOI: 6
Recognition (Withdrawn 2003)
10.1520/D6792-23.
2
E1301 Guide for Proficiency Testing by Interlaboratory
“Quality Assurance for The Chemical and Process Industries: A Manual of
6
Good Practices,” 1987, available from American Society for Quality (ASQ), 600 N. Comparisons (Withdrawn 2012)
Plankinton Ave., Milwaukee, WI 53203. www.asq.org.
E1323 Guide for Evaluating Laboratory Measurement Prac-
3
ASTM STP 15D, ASTM Manual on Presentation of Data and Control Chart
tices and the Statistical Analysis of the Resulting Data
Analysis, ASTM International, W. Conshohocken, PA.
4
E2476 Guide for Risk Assessment and Risk Control as it
ASTM STP 1209, ASTM Manual on Total Quality Management, ASTM
International, W. Conshohocken, PA.
5
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
6
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
*A Summary of Changes section appear
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D6792 − 22a D6792 − 23 An American National Standard
Standard Practice for
Quality Management Systems in Petroleum Products, Liquid
1
Fuels, and Lubricants Testing Laboratories
This standard is issued under the fixed designation D6792; 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.
1. Scope*
1.1 This practice covers the establishment and maintenance of the essentials of a quality management system in laboratories
engaged in the analysis of petroleum products, liquid fuels, and lubricants. It is designed to be used in conjunction with Practice
D6299.
NOTE 1—This practice is based on the quality management concepts and principles advocated in ANSI/ISO/ASQ Q9000 standards, ISO/IEC 17025, ASQ
2 3
Manual, and ASTM standards such as D3244, D4182, D4621, D6299, D6300, D7372, E29, E177, E456, E548, E882, E994, E1301, E1323, STP 15D,
4
and STP 1209.
1.2 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, health, and environmental practices and determine the applicability of
regulatory requirements prior to use.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
5
2.1 ASTM Standards:
6
D630 Specification for Olive Oil Chip Soap (Type A, Straight; Type B, Blended) (Withdrawn 1979)
D3244 Practice for Utilization of Test Data to Determine Conformance with Specifications
D4057 Practice for Manual Sampling of Petroleum and Petroleum Products
D4175 Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
D4182 Practice for Evaluation of Laboratories Using ASTM Procedures in the Sampling and Analysis of Coal and Coke
6
(Withdrawn 2010)
6
D4621 Guide for Quality Management in an Organization That Samples or Tests Coal and Coke (Withdrawn 2010)
D6299 Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measure-
ment System Performance
1
This practice is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.94 on Coordinating Subcommittee on Quality Assurance and Statistics.
Current edition approved Dec. 1, 2022March 1, 2023. Published April 2023. Originally approved in 2002. Last previous edition approved in 2022 as
D6792 – 22.D6792 – 22a. DOI: 10.1520/D6792-22A.10.1520/D6792-23.
2
“Quality Assurance for The Chemical and Process Industries: A Manual of Good Practices,” 1987, available from American Society for Quality (ASQ), 600 N. Plankinton
Ave., Milwaukee, WI 53203. www.asq.org.
3
ASTM STP 15D, ASTM Manual on Presentation of Data and Control Chart Analysis, ASTM International, W. Conshohocken, PA.
4
ASTM STP 1209, ASTM Manual on Total Quality Management, ASTM International, W. Conshohocken, PA.
5
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.
6
The last approved version of this historical standard is referenced on www.astm.org.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6792 − 23
D6300 Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products, Liquid Fuels, and
Lubricants
D6617 Practice for Laboratory Bias Detection Using Single Test Result from Standard Material
D7372 Guide for Analysis and Interpretation of Proficiency Test Program Results
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods
E456 Terminology Relating to Quality and Statistics
6
E548 Guide for General Criteria Used for Evalu
...

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ASTM D1159-23(Test Method)
Standard Test Method for Bromine Numbers of Petroleum Distillates and Commercial Aliphatic Olefins by Electrometric Titration

SIGNIFICANCE AND USE
5.1 The bromine number is useful as a measure of aliphatic unsaturation in petroleum samples. When used in conjunction with the calculation procedure described in Annex A2, it can be used to estimate the percentage of olefins in petroleum distillates boiling up to approximately 315 °C (600 °F).  
5.2 The bromine number of commercial aliphatic monoolefins provides supporting evidence of their purity and identity.
SCOPE
1.1 This test method3 covers the determination of the bromine number of the following materials:  
1.1.1 Petroleum distillates that are substantially free of material lighter than isobutane and that have 90 % distillation points (by Test Method D86) under 327 °C (626 °F). This test method is generally applicable to gasoline (including leaded, unleaded, and oxygenated fuels), kerosine, and distillates in the gas oil range that fall in the following limits:    
90 % Distillation Point, °C (°F)  
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175    
205 to 327 (400 to 626)  
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1.1.2 Commercial olefins that are essentially mixtures of aliphatic mono-olefins and that fall within the range of 95 to 165 bromine number (see Note 1). This test method has been found suitable for such materials as commercial propylene trimer and tetramer, butene dimer, and mixed nonenes, octenes, and heptenes. This test method is not satisfactory for normal alpha-olefins.  
Note 1: These limits are imposed since the precision of this test method has been determined only up to or within the range of these bromine numbers.  
1.2 The magnitude of the bromine number is an indication of the quantity of bromine-reactive constituents, not an identification of constituents; therefore, its application as a measure of olefinic unsaturation should not be undertaken without the study given in Annex A1.  
1.3 For petroleum hydrocarbon mixtures of bromine number less than 1.0, a more precise measure for bromine-reactive constituents can be obtained by using Test Method D2710. If the bromine number is less than 0.5, then Test Method D2710 or the comparable bromine index methods for industrial aromatic hydrocarbons, Test Methods D1492 or D5776 must be used in accordance with their respective scopes. The practice of using a factor of 1000 to convert bromine number to bromine index is not applicable for these lower values of bromine number.  
1.4 The values stated in SI units are to be regarded as the standard.  
1.4.1 Exception—The values given in parentheses are for information only.  
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ASTM D6792-23c(Practice)
Standard Practice for Quality Management Systems in Petroleum Products, Liquid Fuels, and Lubricants Testing Laboratories

SIGNIFICANCE AND USE
4.1 A petroleum products, liquid fuels, and lubricants testing laboratory plays a crucial role in product quality management and customer satisfaction. It is essential for a laboratory to provide quality data. This document provides guidance for establishing and maintaining a quality management system in a laboratory.  
4.1.1 The word ‘customer’ can refer to both customers internal and external to the laboratory or organization.
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SIGNIFICANCE AND USE
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SCOPE
1.1 This test method covers the determination of solvent extractables in petroleum waxes.  
1.2 The values stated in SI units are to be regarded as standard.  
1.2.1 Exception—The values given in parentheses are for information only.  
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SIGNIFICANCE AND USE
5.1 Insoluble material may form in oils that are subjected to oxidizing conditions.  
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SCOPE
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SIGNIFICANCE AND USE
5.1 New and used petroleum products can contain basic or acidic constituents that are present as additives or as degradation products formed during service, such as oxidation products. The relative amount of these materials can be determined by titrating with acids or bases. This number, whether expressed as acid number or base number, is a measure of this amount of acidic or basic substances, respectively, in the oil—always under the conditions of the test. This number is used as a guide in the quality control of lubricating oil formulations. It is also sometimes used as a measure of lubricant degradation in service; however, any condemning limits must be empirically established.  
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ASTM D4627-22(Test Method)
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SIGNIFICANCE AND USE
5.1 The results obtained by this test are a useful guideline in determining the ability of water-miscible metalworking fluids to prevent or minimize rust under specific conditions. There is usually a relationship between the results of this test and a similar ability of the subject coolant to prevent rust on nested parts or in drilled holes containing chips, etc. It must be understood, however, that conditions, metal types, etc. found in practice will not correlate quantitatively with these controlled laboratory conditions. The procedure may not be able to differentiate between two products with poor rust control due to the wide spacing between test dilutions.
SCOPE
1.1 This test method covers evaluation of the ferrous corrosion control characteristics of water–miscible metalworking fluids.  
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ASTM D4177-22e1(Practice)
Standard Practice for Automatic Sampling of Petroleum and Petroleum Products

SIGNIFICANCE AND USE
4.1 Representative samples of petroleum and petroleum products are required for the determination of chemical and physical properties, which are used to establish standard volumes, prices, and compliance with commercial terms and regulatory requirements. This practice does not cover sampling of electrical insulating oils and hydraulic fluids. This practice does not address how to sample crude at temperatures below the freezing point of water.
PART I—General
This part is applicable to all petroleum liquid sampling whether it be crude oil or refined products. Review this section before designing or installing any automatic sampling system.
SCOPE
1.1 This practice describes general procedures and equipment for automatically obtaining samples of liquid petroleum and petroleum products, crude oils, and intermediate products from the sample point into the primary container. This practice also provides additional specific information about sample container selection, preparation, and sample handling. If sampling is for the precise determination of volatility, use Practice D5842 (API MPMS Chapter 8.4) in conjunction with this practice. For sample mixing and handling, refer to Practice D5854 (API MPMS Chapter 8.3). This practice does not cover sampling of electrical insulating oils and hydraulic fluids.  
1.2 Table of Contents:    
Section  
INTRODUCTION  
Scope  
1  
Referenced Documents  
2  
Terminology  
3  
Significance and Use  
4  
PART I–GENERAL  
Representative Sampling Components  
5  
Design Criteria  
6  
Automatic Sampling Systems  
7  
Sampling Location  
8  
Mixing of the Flowing Stream  
9  
Proportionality  
10  
Sample Extractor Grab Volume  
11  
Containers  
12  
Sample Handling and Mixing  
13  
Control Systems  
14  
Sample System Security  
15  
System Proving (Performance Acceptance Tests)  
16  
Performance Monitoring  
17  
PART II–CRUDE OIL  
Crude Oil  
18  
PART III–REFINED PRODUCTS  
Refined Products  
19  
KEYWORDS  
Keywords  
20  
ANNEXES  
Calculations of the Margin of Error based on Number of Sample Grabs  
Annex A1  
Theoretical Calculations for Selecting the Sampler Probe Location  
Annex A2  
Portable Sampling Units  
Annex A3  
Profile Performance Test  
Annex A4  
Sampler Acceptance Test Data  
Annex A5  
APPENDIXES  
Design Data Sheet for Automatic Sampling System  
Appendix X1  
Comparisons of Percent Sediment and Water versus Unloading Time Period  
Appendix X2  
Sampling Frequency and Sampling System Monitoring Spreadsheet  
Appendix X3  
Sampling System Monitoring—Additional Diagnostics  
Appendix X4  
1.3 Units—The values stated in either SI units or US Customary (USC) units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Except where there is no direct SI equivalent, such as for National Pipe Threads/diameters, or tubing.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM D4057-22(Practice)
Standard Practice for Manual Sampling of Petroleum and Petroleum Products

SIGNIFICANCE AND USE
4.1 Samples of petroleum and petroleum products are obtained for many reasons, including the determination of chemical and physical properties. These properties may be used for: calculating standard volumes; establishing product value; and often safety and regulatory reporting.  
4.2 There are inherent limitations when performing any type of sampling, any one of which may affect the representative nature of the sample. As examples, a spot sample provides a sample from only one particular point in the tank, vessel compartment, or pipeline. In the case of running or all-level samples, the sample only represents the column of material from which it was taken.  
4.3 Based on the product, and testing to be performed, this practice provides guidance on sampling equipment, container preparation, and manual sampling procedures for petroleum and petroleum products of a liquid, semi-liquid, or solid state, from the storage tanks, flowlines, pipelines, marine vessels, process vessels, drums, cans, tubes, bags, kettles, and open discharge streams into the primary sample container.
SCOPE
1.1 This practice covers procedures and equipment for manually obtaining samples of liquid petroleum and petroleum products, crude oils, and intermediate products from the sample point into the primary container are described. Procedures are also included for the sampling of free water and other heavy components associated with petroleum and petroleum products.  
1.2 This practice also addresses the sampling of semi-liquid or solid-state petroleum products. For the sampling of green petroleum coke, see Practice D8145. For the sampling of calcined petroleum coke, see Practice D6970.  
1.3 This practice provides additional specific information about sample container selection, preparation, and sample handling.  
1.4 This practice does not cover sampling of electrical insulating oils and hydraulic fluids. If sampling is for the precise determination of volatility, use Practice D5842 (API MPMS Chapter 8.4) in conjunction with this practice. For sample mixing and handling, refer to Practice D5854 (API MPMS Chapter 8.3).  
1.5 The procedures described in this practice may also be applicable in sampling most non-corrosive liquid industrial chemicals provided that all safety precautions specific to these chemicals are followed. Also, refer to Practice E300. The procedures described in this practice are also applicable to sampling liquefied petroleum gases and chemicals. Also refer to Practices D1265 and D3700. The procedure for sampling bituminous materials is described in Practice D140. Practice D4306 provides guidance on sample containers and preparation for sampling aviation fuel.  
1.6 Units—The values stated in SI units are to be regarded as the standard. USC units are reflected in parentheses.  
1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM D5291-21(Test Method)
Standard Test Methods for Instrumental Determination of Carbon, Hydrogen, and Nitrogen in Petroleum Products and Lubricants

SIGNIFICANCE AND USE
5.1 This is the first ASTM standard covering the simultaneous determination of carbon, hydrogen, and nitrogen in petroleum products and lubricants.  
5.2 Carbon, hydrogen, and particularly nitrogen analyses are useful in determining the complex nature of sample types covered by this test method. The CHN results can be used to estimate the processing and refining potentials and yields in the petrochemical industry.  
5.3 The concentration of nitrogen is a measure of the presence of nitrogen containing additives. Knowledge of its concentration can be used to predict performance. Some petroleum products also contain naturally occurring nitrogen. Knowledge of hydrogen content in samples is helpful in addressing their performance characteristics. Hydrogen to carbon ratio is useful to assess the performance of upgrading processes.
SCOPE
1.1 These test methods cover the instrumental determination of carbon, hydrogen, and nitrogen in laboratory samples of petroleum products and lubricants. Values obtained represent the total carbon, the total hydrogen, and the total nitrogen.  
1.2 These test methods are applicable to samples such as crude oils, fuel oils, additives, and residues for carbon and hydrogen and nitrogen analysis. These test methods were tested in the concentration range of at least 75 % to 87 % by mass for carbon, at least 9 % to 16 % by mass for hydrogen, and  
1.3 The nitrogen test method is not applicable to light materials or those containing  
1.3.1 However, using Test Method D levels of 0.1 % by mass nitrogen in lubricants could be determined.  
1.4 These test methods are not recommended for the analysis of volatile materials such as gasoline, gasoline-oxygenate blends, or gasoline type aviation turbine fuels.  
1.5 The results of these tests can be expressed as mass % carbon, hydrogen or nitrogen.  
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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ASTM
ASTM D6304-20(Test Method)
Standard Test Method for Determination of Water in Petroleum Products, Lubricating Oils, and Additives by Coulometric Karl Fischer Titration

SIGNIFICANCE AND USE
5.1 A knowledge of the water content is important in the manufacturing, purchase, sale, or transfer of petroleum products to help in predicting their quality and performance characteristics.  
5.2 The presence of moisture could lead to premature corrosion and wear, an increase in the debris load resulting in diminished lubrication and premature plugging of filters, an impedance in the effect of additives, and undesirable support of deleterious bacterial growth.
SCOPE
1.1 This test method covers the direct determination of entrained water in petroleum products and hydrocarbons using automated instrumentation. This test method also covers the indirect analysis of water thermally removed from samples and swept with dry inert gas into the Karl Fischer titration cell. Mercaptan, sulfide (S– or H2S), sulfur, and other compounds are known to interfere with this test method (see Section 6). The precision statement of this method covers the nominal range of 20 mg/kg to 25 000 mg/kg for Procedure A, 30 mg/kg to 2100 mg/kg for Procedure B, and 20 mg/kg to 360 mg/kg for Procedure C.  
1.2 This test method is intended for use with commercially available coulometric Karl Fischer reagents and for the determination of water in additives, lube oils, base oils, automatic transmission fluids, hydrocarbon solvents, and other petroleum products. By proper choice of the sample size, this test method may be used for the determination of water from mg/kg to percent level concentrations.  
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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