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Based on the evaluations performed, the SRTT appears to be well suited to be used as long-term reference tire for tracking pavement changes and comparing different roadway surfaces. To further evaluate the SRTT for use as a reference tire in OBSI measurements, its sensitivity to variations in temperature, tire inflation pressure, test vehicle type, perturbations in test speed, and load were also measured. Paragon’s range of Density Certified Reference.
#Reference astm standards verification
For comparison to other tires currently in use, on-board sound intensity (OBSI) and controlled pass-by measurements were conducted with the SRTT and compared to pass-by levels measured for light vehicles operating on actual highways. lytical method, not published by ASTM, utilizing reference standards traceable to the National Institute of Standards and Technology (NIST) (when available) or other sources refer-enced in Section 10. Density Certified Reference Materials are for the verification of laboratory instruments used in testing petroleum and derivative products for density in accordance with methodology, but not limited to, such as ASTM D4052, IP 365 and other equivalent international methodology. Referencing elements to cite: Reference number (matching the in-text citation number) Title of standard, in italics Standard number Year of publication 1 Safe Working on or Near Low-voltage Electrical Installations and E quipment, AS/NZS 4836:2011, 2011.
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Two of the new tires were re-tested with increasing use to examine any break-in period effect. ASTM A-193 is a specification from the Association of Standards & Materials that primarily govern industrial. Title of Standard, Standard number, Year. These included five new tires and two that had been in use for some time. To address tire-to-tire variability, seven SRTT’s were tested on variety of asphalt concrete (AC) and Portland cement concrete (PCC) surfaces on two occasions. Issues of concern for the SRTT include tire-to-tire variation, the relation of the SRTT to other tires currently in use, and the “break-in” period required for stable test tires. Because of longer-term availability, the ASTM Standard Reference Test Tire (SRTT) is the primary candidate for these applications.
#Reference astm standards code
There is a growing interest in using a standard reference tire for both assessing changes in test track pavement over time and rank ordering of the performance of different highway pavements. standards covering various aspects of building construction are cited in the 2012 International Green Construction Code (IgCC).