UNITED STATES DEPARTMENT OF AGRICULTURE 
•PARTMENT BULLETIN k 1216 
Washington, D. C. i^«i May, 1924 Revised September, 1928 
TENTATIVE STANDARD METHODS OF SAMPLING 
AND TESTING HIGHWAY MATERIALS 
Adopted by the 
AMERICAN ASSOCIATION OF STATE HIGHWAY OFFICIALS 
And Approved by the 
SECRETARY OF AGRICULTURE 
For U«e in Connection with Federal-Aid Road Construction 
CONTENTS 
Page 
Methods of Sampling and Testing Nonbituminous Highway Materials .... 1 
Methods of Sampling and Testing Drain Tile and Culvert Pipe 46 
Methods of Sampling and Testing Bituminous Highway Materials 59 
Methods of Sampling and Testing Metallic Materials 100 
DNITED STATES 
GOVERNMENT PRINTING OFFICE 
WASHINGTON 
1928 
