G/TBT/N/UGA/879  
 
13 July 2018  
(18-4393) Page: 1/3 
Committee on Technical Barriers to Trade  Original: English  
 
  
NOTIFICATION  
The following notification is being circulated in accordance with Article 10.6  
 
1. Notifying Member: UGANDA   
If applicable, name of local government involved (Article 3.2 and 7.2):   
2. Agency responsible: Uganda National Bureau of Standards  
Name and address (including telephone and fax numbers, email and website 
addresses, if available) of agency or authority designated to handle comments 
regarding the notification shall be indicated if different from above:   
3. Notified under Article 2.9.2 [  ], 2.10.1 [  ], 5.6.2 [X], 5.7.1 [  ], other:  
4. Products covered (HS or CCCN where applicable, otherwise national tariff 
heading. ICS numbers may be provided in addition, where applicable): Pavements  
Road construction materials (ICS 93.080.20).  
5. Title, number of pages and language(s) of the notified document: DUS 1998: 2018, 
Standard Test Method for Measuring the Skid Resistance of Pavements and Other 
Trafficked Surfaces Using a Continuous Reading, Fixed -Slip Technique, First Edition. 
(12 page(s), in English)   
6. Description of content: This Draft Ug anda Standard covers the measurement of the skid 
resistance of a pavement or other trafficked surface using the continuous reading, fixed -
slip technique. This test method covers braked wheel measurements obtained with less 
than 100  % slip. It does not cove r side force measurements. This test method provides a 
record of the skid resistance along the whole length of one track of the test surface and 
enables averages to be obtained for specified test segments. This test method is used to 
measure skid resistanc e on a wide variety of surfaces in a wide variety of circumstances. 
Consequently, there are many different designs of continuous reading, fixed -slip 
measuring equipment (CFME) and as many different test procedures governing their use. 
This test method does  not attempt to detail these different equipments and procedures but 
does set out the essential common principles.  
CFMEs function by creating and measuring a frictional force between a test tire operating 
at a selected slip and the test surface. Different types of CFME do not necessarily create 
the same frictional force between their particular test tire and a common test surface and 
do not necessarily use the same method to measure this frictional force. CFME 
measurements are obtained at a selected steady test speed. This speed may vary 
according to the application. The test surface may be contaminated or clean and dry. If it 
is clean and dry, a measured amount of water is normally deposited on the surface just in 
front of the test wheel. The measuring appa ratus may be built into a vehicle, built into a 
trailer that is towed by a vehicle, or built into a device that is manually pushed. The values 
stated in either SI units or inch -pound units are to be regarded separately as standard. 
The values stated in eac h 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.  G/TBT/N/UGA/879  
 
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  7. Objective and rationale, including the nature of urgent probl ems where 
applicable: Prevention of deceptive practices and consumer protection; Protection of 
human health or safety; Harmonization  
8. Relevant documents:   
1. ASTM E178  Practice for Dealing With Outlying Observations  
2. ASTM E501  Specification for Rib Tire for  Pavement Skid -Resistance Tests  
3. ASTM E524 Specification for Smooth Tire for Pavement Skid -Resistance Tests  
4. ASTM E867  Terminology Relating to Vehicle -Pavement Systems  
5. ASTM E1551  Specification for Special Purpose, Smooth -Tread Tire, Operated on 
Fixed Braking Slip Continuous Friction Measuring Equipment  
6. ASTM E1844  Specification for A Size 10  × 4-5 Smooth -Tread Friction Test Tire  
7. ASTM F408  Test Method for Tires for Wet Traction in Straight -Ahead Braking, Using 
a Towed Trailer  
8. ASTM  F457 Test Method for Speed and Distance Calibration of Fifth Wheel 
Equipped With Either Analog or Digital Instrumentation  
9. Aerodromes, Annex 14 to the Convention on International Civil Aviation, Volume 1, 
Aerodrome Design and Operations, E2340/E2340M - 11 fourth edition, 
International Civil Aviation Organization, Montreal, Quebec, Canada, July 2004.  
10. Airport Services Manual, Part 2, Pavement Surface Conditions, fourth edition, Doc 
9137, AN/898, International Civil Aviation Organization, Montreal, Quebec, 
Canada, 2002.  
11. Andresen, A., and Wambold, J. C., "Friction Fundamentals, Concepts and 
Methodology, " TP 13837E, Transportation Development Centre, Transport Canada, 
October 1999.  
12. CAP 683 The Assessment of Runway Surface Friction for Maintenance Purposes  
13. FAA Adv isory Circular AC/150/5320 -12 Measurement, Construction, and 
Maintenance of Skid Resistant Airport Pavement Surfaces  
14. Goodenow, G. L., Kolhoff, T. R., and Smithson, F. D., "Tire-Load Friction Measuring 
System -A Second Generation, " Society of Automotive Engi neers, Paper No. 
680137.  
15. Henry, J. J., et al, "Evaluation of Pavement Friction Characteristics, " National 
Cooperative Highway Research Program Synthesis 291, 2000.  
16. Kummer, H. W., and Meyer, W. E., "Tentative Skid Resistance Requirements for 
Main Rural High ways, " National Cooperative Highway Research Program, Report 
No. 37, Highway Research Board, 1967.  
17. National Cooperative Highway Research Program Synthesis 291: Evaluation of 
Pavement Friction Characteristics, a Synthesis of Highway Practice, February 2000.  
18. Neill, A. H., Jr., Boyd, P. L., and Hinch, J., "Filtering Techniques for Measuring Peak 
Braking Coefficients, " Tire Science and Technology, Vol 6, No. 4, Nov. 1978, pp. 
275-363. (Also see Test Method F408.)  
19. "Proceedings of the 2nd International Meeting on  Aircraft Performance on 
Contaminated Runways (IMAPCR'99), " TP 13579, 1999.  
20. Pottinger, M. G., and Yager, T. J., The Tire Pavement Interface, STP 929, American 
Society for Testing and Materials, West Conshohocken, PA, 1986.  
21. "Proceedings of the International  Meeting on Aircraft Performance on 
Contaminated Runways (IMAPCR'96), " TP 12943, 1996.  
22. Shahin, M. Y., Pavement Management for Airports, Roads, and Parking Lots, 
Chapman & Hall, 1994.  G/TBT/N/UGA/879  
 
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  23. Yager, T. J., Vogler, W. A., and Baldasare, P., "Evaluation of Two Transp ort Aircraft 
and Several Ground Test Vehicle Friction Measurements Obtained for Various 
Runway Surface Types and Conditions, " NASA TP 2917, 1990.  
9. Proposed date of adoption: December 2018  
Proposed date of entry into force: Not applicable  
10. Final date for comments: 60 days from notification  
11. Texts available from: National enquiry point [X] or address, telephone and fax 
numbers and email and website addresses, if available, of other body: