Standard Specification for
Cranial Traction Tongs and Halo External Spinal
Immobilization Devices1
This standard is issued under the fixed designation F 1831; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
click below Astm F 1831 – 97 pdf free download
click here Astm F 1830 – 97 pdf free download