UNITED STATES DEPARTMENT OF AGRICULTURE 
BULLETIN No. 555 _j 
Contribution from the Office of Public Roads and Rural Engineering 
LOGAN WALLER PAGE, Director 
Washington, D. C. 
November 26, 1917 
STANDARD FORMS FOR 
SPECIFICATIONS, TESTS, REPORTS, AND 
METHODS OF SAMPLING FOR 
ROAD MATERIALS 
As recommended by the 
FIRST CONFERENCE OF STATE HIGHWAY TESTING ENGINEERS 
AND CHEMISTS 
Washington, D. C, February 12 to 17, 1917 
CONTENTS 
Page 
Introduction 1 
Forms of Specifications for Materials . . 5 
Methods of Testing Materials . . . . . 30 
Forms for Reporting Test Results 
Standard Methods of Sampling . 
Index .... . . . . 
Page 
. 38 
. 45 
. 53 
WASHINGTON 
GOVERNMENT PRINTING OFFICE 
1917 
