ARMY MIL-T-301 A (2)-1973 TRIACETIN (GLYCERYL TRIACETATE)《(三醋酸甘油酯)醋精》.pdf

1、MIL-T-30LA (2) 68 = 777770b 0113704 3 MIL-T- 301A .AMENDMENT 2 SJPERSEDING r II July 1973 . . AMENDMENT 1 8 June i966 MILITARY SPECIFICATION . TRIACETIN (GLYCERYL TRIACETATE) This .Amendment forms a part of Wilitary Specification MIL-T-301A, dated 5 December 1961, and is approved for use by all Depa

2、rtments . and Agencies of the Department of Defense. .Paragraph 2.1 : STANDARDS Add: “MIL-STD-1235 - Single and Multilevel Continuous Sampling Procedures and Tables for Inspection by Attributes I . PUBLICATIONS Delete in its entirety Paragraph 2.2 : Add “AMERICAN SOCIETY FOR TESTING AND MATERIALS AS

3、TM-D891 - Specific Gravity of Industrial Aromatic Hydrocarbons and Related Materials I Paragraph 4.2.2: Delete “Handbook ORD-M608-llIt and substitute II MIL- STD - 1 2 3 5 I . Paragraph 4.3.2: Delete “Method 5i0.1ti and substitute “ASTM-D891“ Paragraph 4.3.3: Delete in its entirety and substitute: “

4、4.3.3 Acidity, as Acetic Acid - Add 100 ml of methanol to a clean, 500 ml wide-mouth Erlenmeyer flask. Add 1 ml of bromothymol blue Indicator solution and adjust to a blue end point with 0.05N FSC: 6810 . . . . THIS DOCWMtfNY CONTAINS PAGES. Provided by IHSNot for ResaleNo reproduction or networking

5、 permitted without license from IHS-,-,-* MIL-T-30LA (2) 68 779770b OLL3705 5 9 / MIL-T-301A . AMENDMENT 2 sodium hydroxide (NaOH). Pipette 100 ml-of the sample int8 the flask and titrate to the same blue end point with O.O5N NaOH Determine the specific gravity of the sample. WARNING: The accuracy o

6、f this method is dependent on the specific gravity being determined at the same . temperature as the plpetted sample. 4 CALCULATION: i Acidity, as Acetic Acid,% = ml NaOH x N x 0.06 sp. gr. of sample Where : N = normality of, sod1um.hydroxide solution REAGENT : . - Methanol - Reagent grade, ACS“ Custodian: b Army-MU Navy-OS Reviewing Activity: Army-IU Navy-OS Project Number: 6810-0986 Preparing Activity: Army-KU Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-