NAVY MIL-A-3664-1952 AURAMINE HYDROCHLORIDE (FOR COLORED SMOKE MIXTURES)《奥黄 盐酸盐(有色烟雾混合物)》.pdf
《NAVY MIL-A-3664-1952 AURAMINE HYDROCHLORIDE (FOR COLORED SMOKE MIXTURES)《奥黄 盐酸盐(有色烟雾混合物)》.pdf》由会员分享,可在线阅读,更多相关《NAVY MIL-A-3664-1952 AURAMINE HYDROCHLORIDE (FOR COLORED SMOKE MIXTURES)《奥黄 盐酸盐(有色烟雾混合物)》.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-i f- hi1 rP-sw il DL No, 200 U, S. tandnrd dove when testcd ns spccAcd in 4,4,da 3.8 Appnrcn t cicnsily,-Tho irpparent dsn- d sty NMl Lo 0,:H.i :i: 0s whei tCHtOd ns qwitid hi 44,h I 3,8 Perforninnce,-T
2、ho mciterial shall burn without flaming and shiiil emit R continusus cloud of yellow kmoke for a period of 70 =r: 20 seconds when tested RB spccifiod in 4,4,G, Tho smoke dmll be distinguishable ns to color, ngnfnat :i contrasting color bnckground, at ti didtirice of 10,000 feet on ti cloar dny (seo
3、6.4) a 3.6 Workninnslip,-All work ditil1 be done in u nctrt and workmanlike rntinner, 4. SAIIIPLING, INSPECTION, AND TEST PROCEDURES . 4.1 Y,ot,-A lot shall consist of mirterial prociuced by one miinufacturer with no changc in proccss or mciteriiils in no more thin 24 coneocutivo hours, providing th
4、e operation is continuous, In the event tho process is ti batch opcratiog each batch sh:ill conutituto a lot (seo random from each lot, two rep- rosontntive apccimcns shall be romoved as follows : Specimer. A: For physical and chornical tests-l pound (soe 4.42 through 4.4.5)* Specimen B: For perform
5、ance test - 2 pounds (see 4.4.6). Each specimn takcn shall be placed in a clean, dry container, sealed and labded in such a manner as to identify the specimen with the prime container and ths Iot rep resented (see 6.2 and 6.3), 4.3.1 Packing and marking*-The inspector shall inspect-the packing and m
6、arking of the material for compliance with section 6, 4 - j 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-A-3bb4 13 m 77777Ob 02720b 7 m .I dissolved, ancf tranisfcr gu:intitntively to n 1,QOQ-mI, volumetric laslr, dilute to tho mark with wtw
7、, tmd mix thoroughly, Trmsfcr R IO-ml. aliquot of tho solution to a 250-ml. volumetric flask, diluto to tho mark with water, and mix thoroughly. Within 1 hour after preparation, transfer a portion of tho solution to a spectrophotometer cell and fill. the reference cell with water. Read the trans- mi
8、ttnnce (T) of the solution at a wave length of 430 millimicrons. Percent purity = -100 logio% Note: The above procedure and formula ap- ply when : (1) thc spectrophotoineter cell depth is IO inilhieters (mm.), (2) the trnns- mittancu (T) is expressed as a fraction le.ss than 1, and (3) the spectroph
9、otometer is a Hardy-General Electric recording spectro- photometer having an effective band width of 10 millimicrons. When another instrument is used, it shall first be calibrafod against a Hnrdy-General Electric instruniznt or against U. S. Bureau of Standards glass filters. When a siicctrophotomet
10、er cell of different dcpth is used, calculate the weight of the specimen in inverse proportion. 4.4.3 niotzL1.e.-RetePmine the moisture coiiteiit of the material in general accordance with method No. 300.1.6 of Specification VV- L-791. Use a 65-gm. specimen of the ma- toi*ial, 800 ml, of toluerie as
11、 the soivent, a 1,OQ-ml. flask, and an oil bath or electric heating mantle as a source of heat. 4.4.4 Paytide sixe.-Numbers GO, 100, and 200 U, S. standard sieves, conforming to Specification RR-S-366, shall be selected for the test, Nest the sieves in order of decreas- ing mesh i -. MiiA9-3fiG4 cen
12、tage of material passing through each hvo by subtracting rom 150i percent tho mm of the percantages of the mriterial rc- taincd on that sieve and ail of the larger mesh sioves used. 1 4.4.5 Appursnt densitp. 4.4.5.1 Apparatus.-The apparatus shall consist of a cylinder and a glass funnel. Tho cylinde
13、r shall have an internal length of li 1 centimeters (cm.) and a valume of 100 ml. and may be made by cutting ofE a 250-rn1, graduate at tlie 100-ml. graduntion, The glass funnel shall bo approximately 9 cm, in diameter at the top and dall have a stem approximately 2.6 cm. in length and 1.5 crn, in i
14、nside diameter. 4.4.5.2 Procedure. -Weigh the cylinder, Support the funnel so that the end of thc stem is centrally located 1 cm. above the top of the cylinder. Dry, to a constant weight in an oven maintained at 70 t-3 76“C., a 1)Gr.a tion of the spccinien sufficient to fill thc cylinder to overflow
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