ASTM D6300-03

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
An American National Standard
Designation: D 6300 – 03
Standard Practice for
Determination of Precision and Bias Data for Use in Test
1
Methods for Petroleum Products and Lubricants
This standard is issued under the fixed designation D 6300; 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 (e) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
Both Research Report RR:D02–1007, Manual on Determining Precision Data for ASTM Methods
2
on Petroleum Products and Lubricants and the ISO 4259, benefitted greatly from more than 50 years
of collaboration between ASTM and the Institute of Petroleum (IP) in the UK. The more recent work
was documented by the IP and has become ISO 4259.
ISO 4259 encompasses both the determination of precision and the application of such precision
2
data. In effect, it combines the type of information in RR:D02–1007 regarding the determination of
the precision estimates and the type of information in Practice D 3244 for the utilization of test data.
2
The following practice, intended to replace RR:D02–1007, differs slightly from related portions of
the ISO standard. This new practice is consistent with the computer software, ADJD6300 D2PP,
Version 4.43, Determination of Precision and Bias Data for Use in Test Methods for Petroleum
Products.
1. Scope D 3244 Practice for Utilization of Test Data to Determine
4
Conformance with Specifications
1.1 This practice covers the necessary preparations and
E 29 Practice for Using Significant Digits in Test Data to
planning for the conduct of interlaboratory programs for the
5
Determine Conformance with Specifications
development of estimates of precision (determinability, repeat-
5
E 456 Terminology Relating to Quality and Statistics
ability, and reproducibility) and of bias (absolute and relative),
E 691 Practice for Conducting an Interlaboratory Study to
and further presents the standard phraseology for incorporating
5
Determine the Precision of a Test Method
such information into standard test methods.
2.2 ISO Standards:
1.2 This practice is generally limited to homogeneous prod-
ISO 4259 Petroleum Products-Determination and Applica-
ucts with which serious sampling problems do not normally
6
tion of Precision Data in Relation to Methods of Test
arise.
2.3 ASTM Adjuncts:
1.3 This practice may not be suitable for solid or semisolid
ADJD6300 D2PP, Version 4.43, Determination of Preci-
products such as petroleum coke, industrial pitches, paraffin
sion and Bias Data for Use in Test Methods for Petroleum
waxes, greases, or solid lubricants when the heterogeneous
7
Products
properties of the substances create sampling problems. In such
instances, use Practice E 691 or consult a trained statistician.
3. Terminology
1.4 A software program (ADJD6300) performs the neces-
3.1 Definitions:
sary computations prescribed by this practice.
3.1.1 analysis of variance (ANOVA), n—a procedure for
2. Referenced Documents dividing the total variation of a set of data into two or more
parts, one of which estimates the error due to selecting and
2.1 ASTM Standards:
3 testing specimens and the other part(s) possible sources of
D 123 Terminology Relating to Textiles
added variation. D 123
1
This practice is under the jurisdiction of ASTM Committee D02 on Petroleum
Products and Lubricants and is the direct responsibility of Subcommittee D02.94 on
4
Quality Assurance and Statistics. Annual Book of ASTM Standards, Vol 05.02.
5
Current edition approved July 10, 2003. Published September 2003. Originally Annual Book of ASTM Standards, Vol 14.02.
6
approved in 1998. Last previous edition approved in 2002 as D 6300–02. Available from International Organization for Standardization, 1 rue de
2
Supporting data have been filed at ASTM International Headquarters and may Varembé, Case postale 56, CH-1211 Geneva 20, Switzerland.
7
be obtained by requesting Research Report RR:D02–1007. Available from ASTM International Headquarters. Order Adjunct No.
3
Annual Book of ASTM Standards, Vol 07.01. ADJD6300.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
D6300–03
3.1.2 bias, n—the difference between the population mean 3.1.11 repeatability, n—the quantitative expression of the
of the test results and an accepted reference value. E 456 random error associated with a single operator in a given
3.1.3 bias, relative, n—the difference between the popula- laboratory obtaining repetitive results by applying the same test
tion mean of the test results and an accepted reference value, method with the same apparat
...