1、Designation: D5200 03 (Reapproved 2014)Standard Test Method forDetermination of Weight Percent Volatile Content of Solvent-Borne Paints in Aerosol Cans1This standard is issued under the fixed designation D5200; the number immediately following the designation indicates the year oforiginal adoption o
2、r, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method is for the determination of the weightpercent volatile organi
3、c compounds of solvent-borne paints inaerosol cans. It offers a unique way to obtain paint specimensfrom aerosol cans.1.2 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.3 This standard does not purport to address all of thesa
4、fety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. A specific hazardstatement is given in 6.7.2. Referenced Documents2.1 AS
5、TM Standards:2E145 Specification for Gravity-Convection and Forced-Ventilation OvensE180 Practice for Determining the Precision of ASTMMethods for Analysis and Testing of Industrial and Spe-cialty Chemicals (Withdrawn 2009)32.2 Other Standard:Method 35 Determination of Percent Volatile Organic Com-p
6、ounds (VOC) in Solvent Based Aerosol Paints43. Summary of Test Method3.1 Adesignated quantity from an aerosol coating is sprayedinto an adapter glass tube assembly and heated in an oven at110 6 5C for 60 min. The percent volatile is calculated fromthe loss in weight.4. Significance and Use4.1 This t
7、est method is the procedure of choice for deter-mining the volatile content in aerosol coatings under specifiedtest conditions modeled after Method 35.4The inverse value,nonvolatile, is used to determine the weight percent solidscontent. This information is useful to the paint producer, user,and to
8、environmental interests for determining the grams ofvolatile organic compounds per gram of solids emitted fromaerosol cans.5. Apparatus5.1 Adapter Glass Tube Assembly, (Fig. 1).5.1.1 Sample Adapter Tube, straight connecting with 35/25spherical joints. Loosely fill with glass wool and preconditionfor
9、 30 min in an oven at 110 6 5C and store in a dessicatorprior to use.5,65.1.2 Charcoal Adapter Tube, straight connecting with35/25 spherical joints. Fill with activated charcoal and plugboth ends with glass wool. This tube is used to prevent thesolvent vapors from contaminating the vacuum pump.6,75.
10、1.3 Adapters, connecting hose with 35/25 socket joints.6,85.1.4 Adapter,6,9connecting hose with 35/25 ball joint.1This test method is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings, Materials, and Applications and is the direct responsibility ofSubcommittee D01.21 on Chemi
11、cal Analysis of Paints and Paint Materials.Current edition approved July 1, 2014. Published July 2014. Originally approvedin 1991. Last previous edition approved in 2008 as D5200 03 (2008)1. DOI:10.1520/D5200-03R14.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM
12、Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4Bay Area Air Quality Management District, (BAAQMD) Manual ofP
13、rocedures, Vol III, 939 Ellis St., San Francisco, CA 94109.5The sole source of supply of the adapter tube, No. 5035-35 known to thecommittee at this time is Ace Glass Inc., P.O. Box 688, 1430 Northwest Blvd.,Vineland, NJ 08360.6If you are aware of alternative suppliers, please provide this informati
14、on toASTM International Headquarters. Your comments will receive careful consider-ation at a meeting of the responsible technical committee,1which you may attend.7The sole source of supply of the charcoal adapter tube, No. 5035-3 known tothe committee at this time is Ace Glass Inc.8The sole source o
15、f supply of the adapters (socket joints) No. 5217-35 known tothe committee at this time is Ace Glass Inc.9The sole source of supply of the adapter (ball joint) No. 5216-35 known to thecommittee at this time is Ace Glass Inc.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Consh
16、ohocken, PA 19428-2959. United States15.1.5 Clamps, pinch type, with screw-locking device.6,105.1.6 Glass Wool, medium-fine silk.5.1.7 Activated Charcoal, coconut, 8 to 12 mesh.5.1.8 Tygon Tubing.5.1.9 Iron Stands.5.1.10 Utility Clamps.5.2 Vacuum Pump.5.3 Forced Draft Oven, Type II A or Type II B as
17、 specifiedin Specification E145.5.4 Actuators (Valves), with extension tubes.5.5 Top-Loading Balance, capable of weighing to 0.01 g.5.6 Shaker, similar to the Eberbach shaker in Fig. 2.6. Procedure6.1 Mix the aerosol can thoroughly using a shaker, similarto the Eberbach shaker in Fig. 2, for 15 min
18、at the low-speedsetting. It is essential that the samples be well mixed to obtainvalid results.6.2 Weigh accurately to 0.01 g, a preconditioned sampleadapter tube. Use a pair of gloves at all times when handlingthe adapter glass tube.6.3 Remove the cap and actuator from the mixed can.Replace the act
19、uator with one having an extension tube.6.4 Test actuator and extension tube fit by spraying somecontents out for about 5 s. This step also clears the dip tube incase a separation has occurred. If a leak is observed, replacewith a better fitting actuator or extension tube.6.5 Weigh the aerosol can w
20、ith the actuator to the nearest0.01 g. Spray 3 to5gofaerosol into the adapter tube assembly,spreading out the coating by moving the extension tube aroundthe wall of the adapter tube. The spraying is done with thevacuum on.6.6 Obtain the specimen weight by difference by weighingthe aerosol can again
21、to 0.01 g after spraying out the specimen.6.7 Place the sample adapter tube in the drying oven for 60min at 110 6 5C. (WarningProvide adequate ventilation,consistent with accepted laboratory practice, to prevent solventvapors from accumulating to a dangerous level.)6.8 Remove the adapter tubes from
22、the oven, place imme-diately in a dessicator, cool to ambient temperature, and weighto 0.01 g.7. Calculations7.1 Calculate the weight percent nonvolatile content (NV),in the aerosol can as follows:NV,%5 W2/W1! 3100 (1)where:W1= weight of aerosol can before spraying sample minusweight of aerosol can
23、after spraying sample, g, andW2= weight of sample adapter tube with solids minusweight of sample adapter tube, g.7.2 The weight percent organic volatiles (WO), in theaerosol can may be calculated by the difference as follows:WO,%5 100 2 NV (2)where grams of organic volatiles/grams of solid equalWO/N
24、V.8. Precision and Bias8.1 PrecisionEstimates are based on an interlaboratorystudy in which 1 operator in each of 3 laboratories analyzed induplicate on two different days 3 samples of solvent-borneaerosol coatings containing 63.04 to 77.53 % organic volatiles.The coatings were commercially supplied
25、. The results wereanalyzed statistically in accordance with Practice E180. Thewithin laboratory coefficient of variation was found to be0.51 % relative at 9 df and the between laboratory coefficient ofvariation was 1.04 % relative at 6 df. Based on these10The sole source of supply of the clamps, No.
26、 7669-14 known to the committeeat this time is Ace Glass Inc.FIG. 1 Adapter Glass Tube AssemblyFIG. 2 Aerosol Can on Eberbach ShakerD5200 03 (2014)2coefficients, the following criteria should be used for judgingthe acceptability of results at the 95 % confidence level:8.1.1 RepeatabilityTwo results,
27、 each the mean of dupli-cate determinations obtained by the same operator on differentdays, should be considered suspect if they differ by more than1.62 % relative.8.1.2 ReproducibilityTwo results, each the mean of dupli-cate determinations obtained by operators in different labora-tories should be
28、considered suspect if they differ by more than3.59 %.8.2 BiasBias cannot be determined because there are noaccepted standards for volatile content of solvent-borne contentof paints in aerosol cans.9. Keywords9.1 aerosols; solvent-borne paints; volatile contentASTM International takes no position res
29、pecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This
30、standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Intern
31、ational Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown be
32、low.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 03 (2014)3
