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Inspection (cont).
Salt-Water Contamination Test - TM-10-1670-294-23P_35

TM-10-1670-294-23P Parachute Cargo Type: 35-Foot Diameter Ribbon Extraction Parachute NSN 1670-01-283-4031 Manual
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ARMY TM 10-1670-294-23&P AIR FORCE T.O. 13C5-33-2 NAVY NAVAIR 13-1-34 2-14.  Acidity Test. This task covers: Acidity test Tools: Equipment Condition: Packing Paddle, Item 26, Appendix B Unpacked. Layout on packing table or other suitable area. Materials/Parts: Medicine Dropper, Item 9, Appendix D Three-Color pH Paper, Item 10, Appendix D Spool with Color Chart, Item 15, Appendix D a Fabric and Webbing Acidity Test.  Components and parts that are constructed from fabric or webbing will  be  administered  an  acidity  test  whenever  the  material  is  discolored,  stained,  or  the  presence  of  acid  is suspected.    The  acidity  test  will  be  accomplished  using  approved  colorimetric  pH  paper,  strip  type,  with  the color comparison chart on the side of each manufacturer's dispenser, to determine the acidity level in steps of 1 pH on fabric or webbing item. b. Test Procedure.  Perform test as follows: (1) Using a medicine dropper or equivalent type applicator, place one to two drops of water on the Item  In  the  intended  test  area  If  water  drops  do  not  penetrate  the  material,  gently  rub  the moistened area with a flat side of a clean metal packing paddle. (2) Tear a suitable length of colorimetric pH paper from dispenser, place the piece of pH paper on the wetted area and press the full surface of the paper against the material with a flat side of the packing paddle used In step (1) above.  Insure the pH paper becomes thoroughly wet. (3) Using   the   color   comparison   chart   enclosed   in   the   dispenser,   compare   the   color   of   the moistened pH paper strip with the pH 1-3 color scale.  If the color of the pH paper matches the numerical pH 1-3, the acidity present In the material exceeds the acceptable level and the Item Is to be condemned and processed for disposition in accordance with paragraph 2-13e. (4) After a packing paddle has been used as outlined In steps (1) and (2), above, thoroughly rinse and dry the paddle before using the paddle for any other functions. 2-21







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