1、Designation: D 6368 06Standard Specification forVapor-Degreasing Solvents Based on normal-PropylBromide and Technical Grade normal-Propyl Bromide1This standard is issued under the fixed designation D 6368; the number immediately following the designation indicates the year oforiginal adoption or, in
2、 the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This standard covers solvents based on stabilizednormal-propyl bromide (nPB) for u
3、se in vapor degreasing. Thestandard also includes a separate specification for technical-grade n-propyl bromide.1.2 Blends and azeotropic mixtures of stabilized nPB forvapor-degreasing shall be blended from nPB meeting thespecification for technical-grade nPB.NOTE 1Practices D 3844 and D 4276 and MN
4、L22provide additionalimportant information on vapor degreasing and solvent properties.2. Referenced Documents2.1 ASTM Standards:3D 1078 Test Method for Distillation Range of VolatileOrganic LiquidsD 2108 Test Method for Color of Halogenated OrganicSolvents and Their Admixtures (Platinum-Cobalt Scale
5、)D 2109 Test Methods for Nonvolatile Matter in Haloge-nated Organic Solvents and Their AdmixturesD 2111 Test Methods for Specific Gravity and Density ofHalogenated Organic Solvents and Their AdmixturesD 2251 Test Method for Metal Corrosion by HalogenatedOrganic Solvents and Their AdmixturesD 2942 Te
6、st Method for Total Acid Acceptance of Haloge-nated Organic Solvents (Nonreflux Methods)D 2989 Test Method for Acidity-Alkalinity of HalogenatedOrganic Solvents and Their AdmixturesD 3401 Test Methods for Water in Halogenated OrganicSolvents and Their AdmixturesD 3741 Test Methods for Appearance of
7、Admixtures Con-taining Halogenated Organic SolventsD 3844 Guide for Labeling Chlorinated Hydrocarbon Sol-vent ContainersD 4276 Practice for Confined Area EntryD 4755 Test Method for Free Halogens in HalogenatedOrganic Solvents and Their Admixtures2.2 Other Documents:429 CFR 1919.1200 Department of L
8、abor, OSHA Regula-tions on Hazard Communications449 CFR 100 to 199 Department of Transportation Hazard-ous Materials Regulations3. Properties3.1 Vapor-degreasing solvents based on stabilized normal-propyl bromide shall conform to the requirements prescribed inTable 1. The metal corrosion tests descr
9、ibed in Test MethodD 2251 (test at reflux temperature only) shall be performedwith aluminum (Al 1100). It is recommended, but not arequirement of this specification, that this test also be carriedout by the end user on all metal alloys expected to contact thesolvent during the intended storage and u
10、se.3.2 Blends and azeotropic mixtures of stabilized nPB withother materials for use in vapor degreasing shall be preparedfrom technical-grade nPB which conforms to the requirementsprescribed in Table 2.4. Packaging4.1 Industrial or commercial quantities shall be packagedand labeled in accordance wit
11、h DOT regulations as found in 49CFR 100 to 199 and state and local regulations, and withOSHA Regulations found in 29 CFR 1910.1200.5. Keywords5.1 normal-propyl bromide; 1-bromopropane; vapor-degreasing solvent1This specification is under the jurisdiction of ASTM Committee D26 onHalogenated Organic S
12、olvents and Fire Extinguishing Agents and is the directresponsibility of Subcommittee D26.02 on Vapor Degreasing.Current edition approved June 1, 2006. Published June 2006. Originallyapproved in 1999. Last previous edition approved in 2005 as D 6368 05.2Manual on Vapor Degreasing, MNL2, Third Editio
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19、ebsite(www.astm.org).TABLE 1 Properties of Vapor-Degreasing Solvents Based onStabilized n-Propyl BromideProperty SpecificationTestMethodBoiling point, C, min 65 75 D 1078Acidity (as HCl), weight %, max 0.0010 D 2989Water, weight %, max 0.0150 D 3401Appearance clear and free fromsuspended matterD 374
20、1Color, APHA, max 15 D 2108Free halogen passes test D 4755Nonvolatile residue, weight %, max 0.0010 D 2109Acid acceptance (as NaOH), weight %, min 0.15 D 2942Aluminum corrosion at reflux no evidence oftarnish orcorrosion whencompared with asimilar untestedstripD 2251normal-propyl bromide content, we
21、ight %, min 90 GCiso-propyl bromide content, weight %, max 0.05 GCTABLE 2 Properties of Technical-Grade n-Propyl BromideProperty SpecificationTestMethodSpecific gravity, 25/25C 1.34 1.35 D 2111Boiling point, C 70 71 D 1078Acidity (as HCl), weight %, max 0.0010 D 2989Water, weight %, max 0.0100 D 3401Appearance clear and free fromsuspended matterD 3741Color, APHA, max 15 D 2108Free halogen passes test D 4755Nonvolatile residue, weight %, max 0.0010 D 2109normal-propyl bromide content, weight %, min 99.5 GCiso-propyl bromide content, weight %, max 0.05 GCD6368062
