1、Designation:D 484-71 American National Standard Z11.42-1952(R 1972)American National Standards Institute Method 5203Federal Test Method Standard No.791b(Doctor Test.Section 4.2.6 of D 484)Standard Specification for HYDROCARBON DRY CLEANING SOLVENTS This Standard is issued under the fixed designation
2、 D 484;the number immediately following the designation indicates the year of original adoption or.in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.1.Scope 1.1 This specification covers four types of hydrocarbon solvents,normally petrole
3、um distillates,of low flammability used in dry cleaning of textile materials.2.Classification 2.1 Hydrocarbon dry cleaning solvents shall be of the following types,as specified:Type IStoddard Solvent Type II140 F solvent Type IIIOdorless Solvent Type IVLow Dry Point Solvent 3.Physical and Chemical R
4、equirements 3.1 The physical and chemical properties of the hydrocarbon dry cleaning solvents shall conform to the requirements specified in Table 1.4.Methods of Test 4.1 The material shall be sampled in ac-cordance with ASTM Method D 270,Sam-pling Petroleum and Petroleum Products.2 4.2 The properti
5、es enumerated in this spec-ification shall be determined in accordance with the following ASTM Methods of Test:4.2.1 Flash PointMethod D 56,Test for Flash Point by Tag Closed Tester.3 4.2.2 DistillationMethod D 86,Test for Distillation of Petroleum Products.3 4.2.3 Kauri-Butanol Value Method D 1133,
6、Test for Kauri-Butanol Value of Hydro-carbon Solvents.4 4.2.4 ColorMethod D 156,Test for Say-bolt Color of Petroleum Products(Saybolt Chromometer Method).3 4.2.5 AcidityMethod D 1093,Test for Acidity of Distillation Residues or Hydro-carbon Liquids.3 4.2.6 Doctor Test:4.2.6.1 Preparation of Doctor(S
7、odium Plumbite)SolutionDissolve approximately 125 g of sodium hydroxide(NaOH)in 1 liter of distilled water.Add 60 g of lead oxide(PbO)and shake vigorously for 15 min,or let stand with occasional shakings for at least a day.Allow to settle,and decant or siphon off the clear liquid.Filtration through
8、a mat of asbestos may be employed if the solution does not settle clear.The solution should be kept in a tightly corked bottle,and should be refil-tered before use if not perfectly clear.4.2.6.2 ProcedureShake vigorously to-gether in a test tube 10 ml of the sample to be tested and 5 ml of sodium pl
9、umbite solution for about 15 s.Add a small pinch of pure,dry flowers of sulfur,again shake for 15 s and allow to settle.Observe within a 2-min period.The quantity of sulfur used should be such that practically all of it floats on the interface between the sample and the sodium plumbite solution.4.2.
10、6.3 Interpretation of ResultsIf the sample is discolored or if the yellow color of the sulfur film is noticeably masked,the test shall be reported as positive and the sample condemned as sour.If the sample remains unchanged in color,and if the sulfur film is bright yellow or only slightly discolored
11、 with 1 This specification is under the jurisdiction of ASTM Committee D-2 on Petroleum Products and Lubricants.Current edition effective Sept.15,1971.Originally is-sued 1938.Replaces D 484 52(1968).2 Annual Book of ASTM Standards.Part 18.3 Annual Book of ASTM Standards.Part 17.Annual Book of ASTM S
12、tandards.Part 20.192 NOTICE:This standard has either been superseded and replaced by a new version or withdrawnContact ASTM International(www.astm.org)for the lastest information#D484 gray or flecked with black,the test shall be reported negative and the sample considered sweet.4.2.7 CorrosionMethod
13、 D 130,Detection of Copper Corrosion from Petroleum Products by the Copper Strip Test.3 Perform test under the prescribed conditions for 3 h at 100 C.4.2.8 OdorMethod D 1296,Test for Odor of Volatile Solvents and Diluents.4 The sample shall be free from rancid and objec-tionable odor,and shall be ty
14、pical of a sweet refined naphtha.Samples of partic-ular types of products being tested,having odor characteristics satisfactory to consumer and producer,are to be used as reference standards for comparison.4.2.9 Bromine Number Method D 1159,Test for Bromine Number of Petroleum Dis-tillates and Comme
15、rcial Aliphatic Olefins by Electrometric Titration.3 TABLE 1 Physical and Chemical Properties of Hydrocarbon Drycleaning Solvents Type I Type II Type 111 Type IV Commercial reference Appearance Flash point,min.deg F Distillation,deg F:Initial boiling point,min 50 percent recovered,max Dry point,max
16、Kauri-butanol value:min max Color,max Residue from distillation:Percent,max Acidity Doctor test Copper corrosion,max rating Odor Bromine No.,max Stoddard 140 F Solvent odorless low dry point Clear and free of suspended matter and undissolved water 100 140 100 100 300 350 300 300 350 385 375 345 407 412 412 365 29 29 29 45 45 29 45 water-white or not darker than+21 1.5 1.5 1.5 1.5 neutral neutral neutral neutral negative negative negative negative characteristic.,nonresidual 5.0 5.0 5.0 5.0 By pu
