Appendix C: "A" Missile System - Triax ASTM F1292 User Manual

APPENDIX C
Triax Touch "A" MISSILE SYSTEM
C.1 General
The Triax Touch may be configured for testing of playing field surfaces to ASTM specifications
F355 and F1936 using the "A" missile system. The A missile is a stainless steel cylinder, 5.0" in
diameter with weight of 20 pounds.
NOTE: The "A" missile system may also be configured with guide tube offering a 36 inch or 39.4
inch (1 meter) drop height for testing wrestling mats (ASTM F1081) and trampoline components
(ASTM F381, F2970,) respectively.
C.2 Guide Tube
The guide tube is designed to automatically set the 24 inch drop height as required by ASTM
F1936 for testing of playing fields. Before use the aluminum base plate must be attached to the
bottom of the guide tube. Place the guide tube on a firm level surface with the plate support ring
facing up. Place the two halves of the base plate on the support ring aligning the holes in the base
plate with the four steel pins. The base plate halves might need to be rotated for proper alignment.
The base plates should be installed so that the recesses for the mounting screws are facing upward
allowing the screws to be flush when installed.
Photo C.1 – Attaching base plate
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