Astm D 4729 – 87 (Reapproved 1997) Pdf free download May 7, 2022March 10, 2021 by Mike Standard Test Method for In Situ Stress and Modulus of Deformation Using the Flatjack Method1 This standard is issued under…Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here