1、Designation:D614208D614212 Standard Test Method for Analysis of Phenol by Capillary Gas Chromatography 1 This standard is issued under the xed designation D6142; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last rev
2、ision.Anumber in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval. 1. Scope* 1.1 Thistestmethodcoversthedeterminationofknownimpuritiesinphenolbygaschromatography(GC).Itisgenerallymeant for the analysis of p
3、henol of 99.9% or greater purity. 1.2 This test method has been found applicable over impurity concentrations of 15 to 70 mg/kg. Users of this method believe it is linear over a wider range. 1.3 In determining the conformance of the test results using this method to applicable specications, results
4、shall be rounded off in accordance with the rounding-off method of Practice E29. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated
5、 with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specic hazard statements, see Section 9. 2. Referenced Documents 2.1 ASTM Standards: 2 D3852Practice f
6、or Sampling and Handling Phenol, Cresols, and Cresylic Acid D4307Practice for Preparation of Liquid Blends for Use as Analytical Standards D4790Terminology of Aromatic Hydrocarbons and Related Chemicals D6809Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Rel
7、ated Materials E29Practice for Using Signicant Digits in Test Data to Determine Conformance with Specications E355Practice for Gas Chromatography Terms and Relationships E691Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method E1510Practice for Installing Fuse
8、d Silica Open Tubular Capillary Columns in Gas Chromatographs 2.2 Other Document: OSHA Regulations, 29 CFRparagraphs 1910.1000 and 1910.1200 3 3. Terminology 3.1 See Terminology D4790 for denition of terms used in this test method. 4. Summary of Test Method 4.1 A known amount of an internal standard
9、 is added to a sample of phenol. The prepared sample is mixed and analyzed by a gas chromatograph equipped with a ame ionization detector (FID). The peak area of each impurity and the internal standard is measured. The amount of each impurity is calculated from the ratio of the peak area of the inte
10、rnal standard versus the peak area of the impurity. Results are reported in milligrams per kilogram. 1 This test method is under the jurisdiction ofASTM Committee D16 on Aromatic Hydrocarbons and Related Chemicals and is the direct responsibility of Subcommittee D16.02 on Oxygenated Aromatics. Curre
11、nt edition approved Dec. 1, 2008June 1, 2012. Published December 2008June 2012. Originally approved in 1997. Last previous edition approved in 20032008 as D6142-03.D6142-08. DOI: 10.1520/D6142-08.10.1520/D6142-12. 2 ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerSer
12、viceatserviceastm.org.ForAnnualBookofASTMStandards volume information, refer to the standards Document Summary page on the ASTM website. 3 Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/ www.access.gpo.g
13、ov. This document is not anASTM standard and is intended only to provide the user of anASTM standard an indication of what changes have been made to the previous version. Because it may not be technically possible to adequately depict all changes accurately,ASTM recommends that users consult prior e
14、ditions as appropriate. In all cases only the current version of the standard as published by ASTM is to be considered the official document. *ASummary of Changes section appears at the end of this standard Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428
15、-2959. United States 15. Signicance and Use 5.1 This test method is suitable for setting specications on phenol and for use as an internal quality control tool where phenol is produced or is used in a manufacturing process. It may also be used in development or research work involving phenol. It is
16、generally applied to determining those commonly occurring impurities such as mesityl oxide, cumene, hydroxyacetone, acetone, alpha-methylstyrene, 2-methylbenzofuran, acetophenone, o-cresol, and macetophenone. acetone; acetophenone; a-methylstyrene; cumene; gas chromatography; hydroxyacetone; mesityl
17、 oxide; m o-cresol; phenol; sec-butyl alcohol SUMMARY OF CHANGES Committee D16 has identied the location of selected changes to this standard since the last issue (D6142-03D6142-08) that may impact the use of this standard. (Approved DecemberJune 1, 2008.)2012.) (1)Section 5 reference to cresols was
18、 removed. (2)Section 17 modied to meet current editorial guidelines.guidelines and Section 7.2.1 removed. (2)Section 2 Practice D4307 and Guide D6809 added. (3)Section 8 modied description of gases to meet current editorial standards.guidelines. (4)Section 12 reference to Fig. 2 removed. (5)Section
19、16 modied to meet current editorial guidelines. All references to Table 4 and the use of a (5%-Phenyl) methylpolysiloxane column were removed. (6)Section 17 modied to meet current editorial guidelines. (7)Section 17 added and subsequent section renumbered. 18 reference to cresols was removed. (8)Tab
20、le 1 was modied to remove any reference to use of a (5%-Phenyl) methylpolysiloxane column and cresols. (9)Table 2 was modied to remove any reference to cresols. (10)Table 4 was removed. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any
21、item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Thisstandardissubjecttorevisionatanytimebytheresponsibletechnicalcommitteean
22、dmustbereviewedeveryveyearsand ifnotrevised,eitherreapprovedorwithdrawn.Yourcommentsareinvitedeitherforrevisionofthisstandardorforadditionalstandards and should be addressed toASTM International Headquarters.Your comments will receive careful consideration at a meeting of the responsible technical c
23、ommittee, which you may attend. If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. This standard is copyrighted byASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, P
24、A19428-2959, United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above address 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/). D614212 6
