1、DOD-D-23443B AMENDMENT 2 27 October 1995 SUPERSEDING AMENDMENT 1 23 September 1985 MILITARY SPECIFICATION DI-(ZETHYLHEXYL) ADIPATE, TECHNICAL (METRIC) This Amendment forms a part of DOD-D-23443B dated 15 May 1978, and is approved for use by all Departments and Agencies of the Department of Defense.
2、PAGE 1 * Delete: “MIL-STD-12 18 ACS Chemicals“ * DD Form 1426 note: Delete “Commanding Officer, Naval Ordnance Station, standardization Division (61 1). Indian Head, MD 20640“ and substitute “Commander, Indian Head Division, Naval Surface Warfare Center, Standardization Branch (Code 8420), Indian He
3、ad, MD 20640- 5035“ Add: “DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.“ * * PAGE 2 2.2: Delete: “ASTM D 94-71 Saponification Number of Petroleum Products“ Add: “ASTM D 1045-86 Sampling and Testing Plasticizers Used in Plastics ASTM D 1209-84 Color of Clear Liquid
4、s (Platinum-Cobalt Scale)“ PAGE 4 4.5: Delete “in accordance with MIL-STD-1218“ at end of paragraph. 4.5.1: Delete: “a. Transfer 1.00 distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-* DOD-D-23443B AMENDMENT 2 NOTE: Do not u
5、se solution after 24 hours. b. Fill a clean 50-mL Nessler tube to the mark with sample plasticizer. Fill another 50-mL Nessler tube to the mark with the standard color solution (a. above). Hold the tubes side by side and compare their colors using transmitted light while looking downward through the
6、 tubes. c. The sample shall be rejected if the color is darker than that of the standard solution.“ Substitute: “a. Prepare a No. 50 Platinum-Cobalt Color Standard in a 100-mL Nessler tube as described in ASTM D 1209-84 (10 mL No. 500 Platinum-Cobalt Stock Solution diluted to 100 mL). The No. 500 Pl
7、atinum-Cobalt Stock Solution, already prepared, is available from laboratory supply houses. It may be used provided it meets the absorbance tolerance limits specified in ASTM D 1209 for the No. 500 Platinum-Cobalt Stock Solution. b. Fill a clean 100-mL Nessler tube to the mark with the plasticizer s
8、ample. c. Hold the sample and standard tubes side by side, and compare their colors using transmitted light while looking downward through the tubes. d. The sample shall be rejected if the color is darker than that of the No. 50 Platinum-Cobalt Standard Solution.“ PAGE 5 4.5.5: Delete first sentence
9、 and substitute: “To 50 mL of absolute ethanol in a 125-mL flask, add 2 drops of l-percent phenolphthalein indicator.“ Delete “O. 1 normal“ and substitute “standardized 0.01 normal“ throughout paragraph (2 places). Add at end of paragraph: “If the titration exceeds 10 mL, repeat the determination us
10、ing standardized O. 1 normal sodium hydroxide.“ PAGE 6 * 4.5.6: Delete entire paragraph and substitute: “4.5.6 Saponification number. The saponification number shall be determined in accordance with the titrimetric ester content procedure in ASTM D 1045-86 using a 3-hour reflux time except: 10 drops
11、 of 1 percent phenolphthalein indicator solution shall be used in lieu of bromothymol blue indicator; the 0.5 N KOH need not be standardized; 24-inch air condensers with ground glass joints may be used in place of water-cooled condensers; a 50-mL Class A burette with 0.1-mL graduations shall be used
12、 to deliver the HCI; and the glassware must be chemically clean. It is recommended that the normality of the HCI, standardized to four decimal 2 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DOD-D-23443B (2) m 999990b 2007545 348 W DOD-D-23443B A
13、MENDMENT 2 places, be slightly higher than 0.50 N (but not greater than 0.52 N) so the burette will not require refilling during titration of the blank. The saponification number calculation requires subtraction of the acid number of the sample. To convert the percent acidity (determined in 4.5.5) t
14、o acid number, multiply by 9.35. The saponification number shall be reported to the nearest whole number. Duplicate results should be considered suspect if they differ by more than three saponification numbers. “ 4.5.8: After “Ubbelohde viscometer“ add “Cannon-Fenske viscometer, or equivalent“. PAGE
15、 7 Delete 6.5 and add: “6.5 SuDersession data. This specification supersedes MIL-P-23443A(WEP), dated 22 April 1965, with Amendment 1, dated 7 July 1977. This specification also includes the requirements of and supersedes Naval Sea Systems Command purchase description WS 2237, dated 11 October 1962.
16、 “ * NOTE: The margins of this amendment are marked with asterisks to indicate where changes (additions, modifications, corrections, deletions) from the previous issue were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these nota
17、tions. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. Custodians: Navy - OS Army - AR Air Force - 68 Preparing Activity: Navy - OS (Project 6810-1323) Review Activities: Army - MI DLA - GS 3 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
