PIA TS 135  (b) If the reserve is to be static line actuated by releasing the main canopy, the reserve static  line, if used, must not fail under a straight tension test load of 300-lbf (1334.5 N) applied for  not less than 3 seconds.  (c) If the reserve ripcord is to be static lined from an aircraft the reserve ripcord/static line, must  not fail under a straight tension test load of 600-lbf (2668.9 N) applied for not less than 3  seconds.  (d) Rigid pins, if used, shall not yield under a load of 8-lbf (35.6 N) applied to the cable (or  equivalent) perpendicular to the axis of the pin, for not less than 3 seconds. The pin shall be  supported for 0.5 in (12.7-mm) maximum at the end farthest from the cable attachment. All  4.3.3 human factors tests shall be performed using a primary actuation device/ripcord that  has passed this test.  (a)  a load applied at the handle of not less than 5 lbf (22.2 N), applied in the direction giving  the lowest pull force, (b)  a load applied at the handle of not more than 22 lbf (97.9 N), applied in the direction of  normal design operation, (c)  for chest type parachute assemblies, the maximum pull force shall be 15 lbf (66.7 N),  (d)  the primary actuation device shall be tested in accordance with Table 2,  (e)  the emergency/reserve drogue release (if used) shall be tested in accordance with Table 2.  4.3.5.1  Precondition for 16 hours at not less than +200   F (93.3   C), stabilize to ambient and test drop.  4.3.5.2  Precondition for 16 h at not greater than -40   F (-40   C), stabilize to ambient and test drop. 4.3.3 HUMAN FACTORS AND ACTUATION FORCE TESTS: 4.3.4 HUMAN FACTORS TESTS, HARNESS: An anthropometrically diverse group of individuals (consisting of a representative group of no  less than 3 males and 3 females) from the intended user group shall be employed for all human  factors tests in 4.3.3. All individuals shall be able to operate the subject device without any  undue difficulty. Table 2 lists the required test conditions and number of tests for each particular  component. Additional information for the component tests is listed below.  TESTS:  Under normal design operating conditions, all devices tested under this paragraph shall  result in a positive and quick operation of the device within the following load range applied to  the handle: NOTE: For these tests, the primary actuation device (ripcord or equivalent) shall be equipped  with a tamper-indicating device (i.e. seal thread or equivalent) of the same type that will be  required for production articles in service. Harnesses shall demonstrate that they will perform the basic function of retaining the body at the  end of the parachute suspension system in an inherently secure manner. This requirement shall be demonstrated by passing all live drop tests in Table 3.  Three drops shall be made at 60 KEAS except that prior to the test the parachute assembly shall  be subjected to the following preconditioning: (These tests may be combined with other tests.)  4.3.5  ENVIRONMENTAL TESTS: PIA TS-135, Revision 1.4, Issued April 22, 2010, Page 7 of 18  DISTRIBUTION STATEMENT: All Rights Reserved. No Part of this publication may be reproduced without prior written permission from Parachute Industry Association. PIA Headquarters, Parachute Certification St andards Committee, 3833 West Oakton Street, Skokie, IL 60076 Phone: 847-674-9742 Fax: 847-674-9743 or  website www.pia.com for contact details.  Disclaimer: This document is published by the PIA to provide technical and engineering standards that can be used by reference by all those who may benefit from them. The use of this document is entirely voluntary, and its applicability and suitability for any particular use, including any patent or trademark infringement  arising there from, is the sole responsibility of the user. There may be errors, especially in numbers. PIA disclaims any responsibility for accuracy. The PIA reviews each technical publication periodically, at which time it may be reaffirmed, revised, or canceled. The PIA invites your written comments and suggestions.  Copyright © 2010 Parachute Industry Association.  Change 1 (December 2015)  A-32