1、Designation: D3030 11Standard Test Method forVolatile Matter (Including Water) of Vinyl Chloride Resins1This standard is issued under the fixed designation D3030; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last rev
2、ision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This test method covers the quantitative determinationof the volatile matter (including water) present in vinylchloride resin
3、s.1.2 The values stated in SI units are to be regarded asstandard.1.3 This standard does not purport to address all of thesafety 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 app
4、lica-bility of regulatory limitations prior to use.NOTE 1This test method is identical ISO 1269.2. Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD883 Terminology Relating to PlasticsD1600 Terminology for Abbreviated Terms Relating toPlasticsE145 Specifica
5、tion for Gravity-Convection and Forced-Ventilation Ovens2.2 ISO Standard:ISO 1269 Homopolymer and Copolymer Resins of VinylChlorideDetermination of Volatile Matter IncludingWater33. Terminology3.1 Definitions: Definitions are in accordance with Defini-tions D883 and Terminology D1600, unless otherwi
6、se indi-cated.4. Summary of Test Method4.1 This test method consists of heating at 110C a knownquantity of powdered resin to constant mass. The calculatedmass loss defines quantitatively the volatile matter present inthe sample.5. Significance and Use5.1 The quantity of volatile components in a viny
7、l chlorideresin can be established by this test method. This test methoddoes not identify the components.6. Apparatus6.1 OvenA forced-ventilation oven conforming to therequirements for Type IIA in Specification E145. The ovenshould be capable of maintaining a temperature of 110 6 1Cwhen the damper i
8、s half open and the vent is wide open.6.1.1 The oven shall be equipped with a calibrated ASTMthermometer and the proper stem correction shall be applied tothe temperature measurement.6.1.2 The oven temperature shall be controlled by anaccurate, reliable thermoregulator, maintaining the set pointwith
9、in 60.5C or better.6.1.3 The inside of the oven shall be free of contaminationor surface deposits. Stainless steel oven liners should be usedto reduce corrosion due to continued exposure to decomposi-tion gases.6.2 Sample ContainerA weighing vessel of low shapedesign in glass, aluminum, or stainless
10、 steel of sufficient size tohold a 10-g resin sample. An aluminum weighing dish, 57 mmin diameter and 18 mm in depth, is suitable.6.3 BalanceAweighing balance with a precision to within0.001 g.7. Preparation of Apparatus7.1 Maintain the oven at the temperature of the test for atleast 1 h prior to in
11、sertion of the specimens.7.2 Prior to test operation, verify the uniformity of tempera-ture within the oven according to Specification E145. Theairflow in the oven should be greater than 0.3 m3/min (10ft3/min).NOTE 2The temperature uniformity can also be verified by placing 5or more portions of the
12、same resin sample in the oven, distributed over the1This test method is under the jurisdiction of ASTM Committee D20 on Plasticsand is the direct responsibility of Subcommittee D20.15 on Thermoplastic Materials(Section D20.15.08).Current edition approved Sept. 1, 2011. Published September 2011. Orig
13、inallyapproved in 1972. Last previous edition approved in 2006 as D3030 - 95 (2006).DOI: 10.1520/D3030-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standa
14、rds Document Summary page onthe ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C
15、700, West Conshohocken, PA 19428-2959, United States.test area, following Section 8. Calculate the percent of volatile loss(Section 9). If the differences in the volatile loss of the samples exceed thetest reproducibility, the temperature in the oven is not uniform and mustbe corrected before procee
16、ding with the test.8. Procedure8.1 Dry the weighing vessel in the oven at 110 6 1C for 30min and cool to room temperature in a desiccator. Tare theweighing vessel to the nearest 0.001 g.8.2 Spread approximately 10 g of sample resin evenly overthe bottom of the weighing vessel and weigh to the neares
17、t0.001 g. Record the sample mass.8.3 Place the resin-filled weighing dish in the oven con-trolled at 110 6 1C and close the oven.8.4 After 1 h, remove the weighing dish, cool to roomtemperature in a desiccator, and weigh to the nearest 0.001 g.Return the weighing dish to the oven and heat for an add
18、itional15 min, cool to room temperature in the desiccator, andre-weigh. Constant mass is reached when the successiveweighing differs by 0.001 g or less; if the mass variation isgreater than 0.001, continue the 15 min heating-weighing cycleuntil constant mass is obtained.NOTE 3Prompt weighing after r
19、emoval of the dish from desiccatorwill improve accuracy.8.5 Test a minimum of two samples, and average the results.9. Calculation9.1 For each determination calculate the mass percent ofvolatile matter present as follows:M 2 M8!/M 3 100where:M and M8 = respectively, the mass before and after heatingo
20、f the resin determined at room temperature (atemperature in the range from 20 to 30C (68to 85F), as defined in Methods D618).10. Report10.1 Report the following information:10.1.1 The arithmetic average of the determinations to thenearest 0.01 mass %.11. Precision and Bias11.1 The following should b
21、e used for judging the accept-ability of results (95 % confidence limits):11.2 ReproducibilityThe average of two determinationsreported by one laboratory should be considered suspect if itdiffers from that of another laboratory by more than 22 %relative.11.3 RepeatabilityThe average of two determina
22、tions ob-tained on two separate days at the same laboratory on the samesample should be considered suspect if it differs by more than4.4 % relative.11.4 BiasNo justifiable statement of bias can be made forthis test method, since the true value of the property cannot beestablished by an accepted refe
23、ree method.NOTE 4Other techniques of volatile determinations may be substi-tuted at the option of the purchaser and seller, such as the use of asemi-automatic moisture tester or a procedure employing an infrared lampas a heating source. With such methods, the temperature of the heatedsample must be
24、maintained at 110 6 1C.12. Keywords12.1 moisture content; test method; vinyl chloride resins;volatile matterSUMMARY OF CHANGESCommittee D20 has identified the location of selected changes to this standard since the last issue (D3030 - 95(2006) that may impact the use of this standard. (September 1,
25、2011)(1) Rewrote Note 1 to have the correct ISO statement inaccordance with Guide D4968.(2) Deleted year date from ISO standard reference 2.2.(3) Deleted research report footnote (4) and its reference fromSection 11.ASTM International takes no position respecting the validity of any patent rights as
26、serted 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 standard is subject to revision at any time
27、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 International Headquarters. Your comments will rec
28、eive 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 below.This standard is copyrighted by ASTM Int
29、ernational, 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 ASTM website (www.astm.org/COPYRIGHT/).D3030 112
