1、MIL-T-48260 (3) 83 = 7777706 0404148 8 MIL-T-48260 (AR) AMENDMENT 3 6 September 1985 SUPERSEDING AMENDMENT 2 23 November 1982 MILITARY SPEC IF I CAT I ON TAPE, POLYESTER (FOR USE IN AMMUNITION) This Amendment forms a part of Military Specification MIL-T-48260(PA), dated 5 October 1973, and is approv
2、ed for use by the US Army Armament Munitions and Chemical Command, an2 is available for use by all Departments and Agencies of the Department of Defense. PAGE 1 * 1.2 Classif!.cation. Under Type II, Class 3, delete “1.05“ ani! substitute i10.10511. PAGE 3 ;r( Table I. Weight, ounces per yard foz./yd
3、.), Type II, Class 3, Max: Delete “1.05“ and substitute “0.105“. PAGE 9 0.4.8 Acjdity or alkalinity. Delete i.n its entirety and substitute the following: “4.0.8 Acidity or alkalinity. Decant the water extract obtained in the determination of pH into a 250 mL beaker forcing as much absorbed water as
4、 possible out of the tape by pressing the tape against the side of the beaker with the aid of a glass stirring rod. If the pH of the water extract is 7.0 or greater, titrate the solution with a 0.10 N hydrochloric acid solution using methyl. red as the indicator. FSC 8305 DISTRIBUTION STATEMENT A. A
5、pproved for public release; distribution is unlimited. THIS DOCUMENT CONTAINS 3 PAGES. a Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-48260 (AR) AMENDMENT 3 Calculate any alkalinity to percent sodium carbonate as follows: Percent sodium carb
6、onate = 5.3 VN W Where: V = mL of hydrochl-oric acid solution required N = normality of the hydrochloric acid sol.ution W = weight of sample If the pH of the water extract is 6.9 or less, titrate the solution with approximately O. 1N sodium hydroxide solution of known normality using phenolphthalein
7、 indicator to the first permanent pink color. Calculate any acidity to percent acetic acid as follows: Percent of acetic acid = 6.0 VN W Where: V = mL of sodium hydroxide solution required N = normality of the sodium hydroxide solution W = weight of the sample“ NOTE: The changes which appeareii in A
8、mendment 1 have been intentionally deleted in this Amendment, and the parameters concerned are to remain as they appear in the original specification (MIL-T-48260 (PA). NOTE: The margins of this amengrnent are marked with an asterisk or vertical. lines to indicate where chanaes (additions, modi- f i
9、cations, corrections, delet ions) from the previous amendment were made. This was done as a convenjence only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the reuuirements of this document based on the entire content irrespective the original notations and relationship to the last previous amendment. Custodian: Army -AR Preparing activity: Army-AR (Project 830 5-A9.19) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
