1、.l,Standard Specifications/or INDUSTRIAL 90 BENZENE12 e A$Tiir eignatlo:D 361-65 Replaces Pormer Desigion iJ 837 AJJOPTED,1936;REVISED,1961,1965.3 This Standard of the American Society for lesting and M,ii-terials is issued,under the fixed.designation D 361;the final,n,umber ll).dicates,tie year of
2、orig-inal adoption as standard or,in the case ofrevision,the year of last revision.scope/i.These specifications 1 1;cover indus trial 90 b,enzene.:,r.:Properties,.,.ft.;1l2.Industrial 90 benzene shall conform l;Jc;the.following requirements:.rugf!if?:z:gtg;Al:Gofor;.,.i:ot darker than 20 on-1:;,iL:;
3、the platfoumccobalt.scale(AST)M Method D 1209),or the visible color shall be hot darkerJ!ian,standard.b:y:Method D 85S.!.;-:r-1 Under the standardization:ro.edtire.of th;,Society,these specifications are under.the joint lEiUrisdictfori of tP:e:A:STM Committee D-i on Ji Jaint;,:varilish;Lacquer,and.R
4、elatedProducts.-arid.the:A,STM Qm;nm1ttee,D:16 on Industrial t Aromatic Hydrocarbons and Related Materials.,.2 lliis material wits formerly kllown as in dustrial,go;per cent benzol.:;.;3 atst).evis.iOn,a?c.epted ll:gust 31,1965,.by actib:U of the.Society at the.Annual Meeting and confirming letter b
5、allot.Prior to adoption as standard,these speci-fications were published astentative from 1933 to 1936.8a Method of Test for Copper Corrosion by:Mineral Spirits(Copper Strip Test)(ASTM Designation:D 1616),which appears in this pub-lication.207.Distillation rf!,I).ge at.760 mm pressure:Iiiitial boili
6、ng poillt,min.78 C Percentage recovered at 100 C,min.90 Dry point,niax.120 C Odor.:.;characteristic aromatic hydrocarbon,odor as agreed upon between the manufacturer and the purchase).,non-.,rellidual.:.water.not suffieient to!how turbidity at 20.C Acidity.:.,.not more than 0.005 per cent by weight(
7、free acid.calculated as acetic acid):,equiva lent.to 0;047.mg KOH.(0.0334 mg N aOH)or.no free acid;that:is,no evi-dence of acidity.as defined in Method DB47.Acid wash color.not darker than No.6 color standad Sulfur co:inpounds.free of H2S and S02.Corrosion;hr at 100 C.copper strip shall not show:gre
8、ater discolor-ation:than,Cfass 2 in Method D 16163a In case of dispute,experimental values for 15.56/15.56 C shall be controlling.29-6 NOTICE:This standard has either been superseded and replaced by a new version or discontinued.Contact ASTM International(www.astm.org)for the latest information.208
9、SPECIFICATIONS FOR INDUSTRIAL 90 BENZENE(D 361)Methods of Test 3.The material shall be sampled and the properties enumerated in these specifications shall be determined in accordance with the following methods:(a)Sampling.-Section 2 of the Methods of Sampling and Testing Volac tile Solvents for Use
10、in Paint,Varnish,.Lacquer,and Related Products(ASTM Designation:D 268);4 or Methods of Sampling Petroleum and Petroleum Products(ASTM Designation:D 270).5(b)Specific Gravity.-Any convenient method that is accurate to the third decimal place(Note 1).NOTE 1.-See Method of Test for Specific Gravity of
11、Industrial Aromatic Hydrocarbons and Related Materials(ASTM Designation:D 891);4 Test for Density and Specific Gravity of Liquids by Lipkin Bicapillary Pycnometer(ASTM Designation:D 941);6 Specific Gravity of Petroleum Liquids,Hydrometer Method(ASTM Designation:D 1298).s(c)Color.-Method of Test for
12、Color of Clear Liquids(Platinum-Cobalt Scale)(ASTM Designation:D 1209);4 or Test for Color,and Hydrogen Sulfide and Sul-fur Dioxide Content(Qualitative)of In-dustrial Aromatic Hydrocarbons(ASTM Designation:D 853).4(d)Distillation.-Method of Test for Distillation Range of Volatile Organic Liquids(AST
13、M Designation:D 1078);4 or Method of Test for Distillation of Industrial Aromatic Hydrocarbons and Related Materials(ASTM Des-ignation:D 850)4 using either ASTM Solvents Distillation thermometer hav-ing a range of 72 to 126 C,and conform-ing.to the requirements for thermometer 40 C as prescribed in
14、ASTM Specifica-Appears in this publication.6 1966 Book of ASTM Standards,Part 18.61966 Book of ASTM Standards,Part 17.tions E 1;7 or the thermometer described.in Section 2(b),Item(2)of Method D 850.In case of dispute,gas heat shall be used.(e)Odor.-Method of Test for Resid-ual Odor of Lacquer Solven
15、ts and Dilu-ents(ASTM Designation:D 1296).4(f)W ater.-Piace 10 ml of the sample in a dry,loosely stoppered test tube(16 by 150 ml)and place in a water bath at 20 C(68 F).On viewing the tube trans-versely at the end of 3 min,no turbidity should be observed and no free water should appear on the botto
16、m of the tube(Note 2).NOTE 2.-If a more precise test for moisture is needed,the buyer and seller should agree on specification limits,using the Karl Fischer quantitative procedure described in Method of Test for Water in Volatile Solvents(Fischer Reagent Titration Method)(ASTM Desig-nation:D 1364),4(g)Acidity.-Method of Test for Acidity in Volatile Solvents and Chemi-cal Intermediates Used in Paint,Varnish,Lacquer,and Related Products(ASTM Designation:D 1613);4 or Method of Test for Acidity of B