ASTM D6205-20

Standard Practice for Calibration of the James Static Coefficient of Friction Machine

SIGNIFICANCE AND USE
5.1 This practice is used to calibrate the James Machine for determination of static coefficient of friction of polish surfaces in accordance with Test Method D2047. Over considerable time and repeated use the James Machine may tend to mechanical misalignment, giving self-evident, anomalous readings. The periodic accumulation and comparison of data generated by this practice provides an indication of when the machine is no longer within the calibration limits and can no longer be expected to provide accurate and reliable data.  
5.2 Semi-automated James machines may perform an internal calibration/alignment test. These automated tests should be routinely run per the manufacturer's recommendation. If the repeatability tests of this practice indicate that the machine is out of calibration, the manufacturer should be contacted and their suggestions followed. Unqualified disassembly, modification, or adjustment may void the instrument warranty of semi-automated James Machines.
SCOPE
1.1 This practice covers the testing of the James Machine for repeatability of static coefficient of friction, relative to a standard reference interface consisting of the working surfaces of Borco2 board and standard leather shoe sole material, or a control polish film and standard leather shoe material. The practice provides basis data on the stability of the James Machine to ensure accurate static coefficient of friction determinations over time and repeated use and for determining if the James Machine is mechanically calibrated and properly aligned.  
1.2 This practice is written specifically for James Machines with manual or motorized test table transport. Variations of this practice for the calibration of versions of James Machines which are semi-automated are obvious. Calibration practices suggested by the manufacturer of semi-automatic James Machines should be followed in preference to this practice.  
1.3 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 appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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: Published
• Publication Date: 14-Jun-2020
• ICS: 19.060 - Mechanical testing
• ICS: 61.060 - Footwear
• Technical Committee: D21 - Polishes
• Drafting Committee: D21.06 - Slip Resistance

Standards Content (Sample)

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.
Designation: D6205 − 20
Standard Practice for
Calibration of the James Static Coefficient of Friction
1
Machine
This standard is issued under the fixed designation D6205; 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 2. Referenced Documents
3
1.1 This practice covers the testing of the James Machine 2.1 ASTM Standards:
for repeatability of static coefficient of friction, relative to a D2047 Test Method for Static Coefficient of Friction of
standard reference interface consisting of the working surfaces Polish-Coated Flooring Surfaces as Measured by the
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of Borco board and standard leather shoe sole material, or a James Machine
control polish film and standard leather shoe material. The D2825 Terminology Relating to Polishes and Related Mate-
practice provides basis data on the stability of the James rials
Machine to ensure accurate static coefficient of friction deter- D4103 Practice for Preparation of Substrate Surfaces for
minationsovertimeandrepeateduseandfordeterminingifthe Coefficient of Friction Testing
James Machine is mechanically calibrated and properly E29 Practice for Using Significant Digits in Test Data to
aligned. Determine Conformance with Specifications
E178 Practice for Dealing With Outlying Observations
1.2 This practice is written specifically for James Machines
2.2 Federal Specification:
withmanualormotorizedtesttabletransport.Variationsofthis
KK-L-165C Leather, Cattlehide, Vegetable Tanned and
practice for the calibration of versions of James Machines
4
Chrome Tanned, Impregnated, and Soles
which are semi-automated are obvious. Calibration practices
suggested by the manufacturer of semi-automatic James Ma-
3. Terminology
chines should be followed in preference to this practice.
3.1 Definitions:For general definitions, see Test Method
1.3 This standard does not purport to address all of the
D2047 and Terminology D2825.
safety concerns, if any, associated with its use. It is the
3.2 Definitions of Terms Specific to This Standard:
responsibility of the user of this standard to establish appro-
3.2.1 Borco, n—special 5-ply vinyl drawing board cover.
priate safety, health, and environmental practices and deter-
3.2.2 Borco/standard leather reference interface,
mine the applicability of regulatory limitations prior to use.
n—working interface consisting of the white side of the Borco
1.4 This international standard was developed in accor-
material, mounted as described in this practice, and the
dance with internationally recognized principles on standard-
standard leather shoe sole material, mounted on a precision
ization established in the Decision on Principles for the
shoe pad as described in Section 7 of Test Method D2047.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
3.2.3 control polish, n—a reference polish of known or well
Barriers to Trade (TBT) Committee.
established Static Coefficient of Friction, as determined by
repeated determinations using Test Method D2047 over a long
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period of time and preferably by determinations on multiple
This practice is under the jurisdiction of ASTM Committee D21 on Polishes
and is the direct responsibility of Subcommittee D21.06 on Slip Resistance.
James Machines.
Current edition approved June 15, 2020. Published July 2020. Originally
3.2.4 control polish/standard leather reference interface,
approved in 1998. Last previous edition approved in 2012 as D6205- 12. DOI:
10.1520/D6205-20.
n—working interface consisting of a dried film of control
2
Borco is a registered trademark for a Danish product imported into the United
polish, applied according to the procedures of Practice D4103
States by Sierra Group, a division of Wallace Leisure Products, Inc.Available from
on standard vinyl composition tile, and the standard leather
Papyro-TexA/S, DK-2730, Herlev, Denmark; distributed in NorthAmerica through
drafting and office supply stores under the trade names “Borco,” “Vyco,” and
“Altex” board covers.
3
The sole source of supply of Borco known to the committee at this time is For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Phipps’s Reprographics 6920 Plainfield Rd, Cincinnati, OH 45236. If you are aware contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
of alternative suppliers, please provide this information to ASTM International Standards volume information, refer to the
...

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: D6205 − 12 D6205 − 20
Standard Practice for
Calibration of the James Static Coefficient of Friction
1
Machine
This standard is issued under the fixed designation D6205; 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 testing of the James Machine for repeatability of static coefficient of friction, relative to a standard
2
reference interface consisting of the working surfaces of Borco board and standard leather shoe sole material, or a control polish
film and standard leather shoe material. The practice provides basis data on the stability of the James Machine to ensure accurate
static coefficient of friction determinations over time and repeated use and for determining if the James Machine is mechanically
calibrated and properly aligned.
1.2 This practice is written specifically for James Machines with manual or motorized test table transport. Variations of this
practice for the calibration of versions of James Machines which are semi-automated are obvious. Calibration practices suggested
by the manufacturer of semi-automatic James Machines should be followed in preference to this practice.
1.3 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 appropriate safety safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.4 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
3
2.1 ASTM Standards:
D2047 Test Method for Static Coefficient of Friction of Polish-Coated Flooring Surfaces as Measured by the James Machine
D2825 Terminology Relating to Polishes and Related Materials
D4103 Practice for Preparation of Substrate Surfaces for Coefficient of Friction Testing
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E178 Practice for Dealing With Outlying Observations
2.2 Federal Specification:
4
KK-L-165C Leather, Cattlehide, Vegetable Tanned and Chrome Tanned, Impregnated, and Soles
3. Terminology
3.1 Definitions:For general definitions, see Test Method D2047 and Terminology D2825.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 Borco, n—special 5-ply vinyl drawing board cover.
1
This practice is under the jurisdiction of ASTM Committee D21 on Polishes and is the direct responsibility of Subcommittee D21.06 on Slip Resistance.
Current edition approved Oct. 1, 2012June 15, 2020. Published October 2012July 2020. Originally approved in 1998. Last previous edition approved in 20062012 as
D6205- 06.12. DOI: 10.1520/D6205-12.10.1520/D6205-20.
2
Borco is a registered trademark for a Danish product imported into the United States by Sierra Group, a division of Wallace Leisure Products, Inc. Available from
Papyro-Tex A/S, DK-2730, Herlev, Denmark; distributed in North America through drafting and office supply stores under the trade names “Borco,” “Vyco,” and “Altex”
board covers.
The sole source of supply of Borco known to the committee at this time is Phipps’s Reprographics 6920 Plainfield Rd, Cincinnati, OH 45236. If you are aware of alternative
suppliers, please provide this information to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical
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committee, which you may attend. See also: https://www.thehcpa.org/resources/#1517763820809-cf4141f9-4ecb.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
4
Available from Standardization Documents Order Desk, Bldg 4 Section D, 700 Robbins Ave., Philadelphia, PA 19111-5094, Atten: NPODS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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