Purdue University
Agricultural Extension Service Mimeo AE 47

LIST OF APPROVED DRAIN THE MANUFACTURERS
By Donald R. Sisson, Extension Agricultural Engineer
High quality drain tile is one of the requirements for a durable long lasting
tile dra^qage system. The American Society for Testing Materials (ASTM) has. .set
up specifications for drain tile. Every tile user is urged to purchase only tile
meeting these ASTM standards. Two classes or grades of tile are recognized; these
are "standard drain tile" and "extra-quality drain tile." Landowners must use tile
of at least "standard" quality to qualify for government incentive payments on tile
drainage through the soil conservation program.
A.S.T.M. PHYSICAL TESTS REQUIREMENTS FOR TWO CLASSES OF DRAIN TILE
Sizes 4 to 12 inch diameter, inclusive
(Specification C4-55)
Minimum average
crushing strength Maximum average absorption
(3-edge bearing method) by 5-hour boiling test
lb. per linear foot percent
Clay     Concrete       Clay     Concrete
Standard drain tile 800       800 13        10
Extra-quality drain tile      1100      1100 11 8
Other requirements are that the tile be sound and will give a clear ring when
tapped with a light hammer, about straight in length and circular in cross-section,
reasonably smooth on the inside, and free from blisters, checks and cracks that
would decrease strength*
In Indiana, through a cooperative program, a list of approved tile manufacturers
is published each May 15 and October 15. Tile manufacturers, the Soil Conservation
Service and Purdue University make this list possible. Each tile manufacturer who
cares to participate has a strength and absorption test performed on a sample of
drain tile during the 90 days preceding the date the list is issued. Technicians
of the Soil Conservation Service select the samples for test at the manufacturers
yard| the producer transports the tile to the independent laboratory of his
choice and pays for the tests. Only manufacturers whose tile meet or surpass the
"Standard" quality requirements are included on the list. Here is the approved
list of manufacturers distributing tile in Indiana as of May 15, 1958. This list
is effective until a new list is published about October 15.
Berne Ready Mix Co. Berne, Indiana
Camden Cement Tile Cof Camden, Indiana
Cayuga Brick Co. Cayuga, Indiana
Dailey Construction Cot BR 4, Greenfield, Indiana
Decatur Ready Mix Co, Decatur, Indiana
(OVER)