1、Designation:D183387(Reapproved 2012)Technical Association ofPulp and Paper IndustryTentative Method T 654 ts-64Designation:185/65(85)Standard Test Method forOdor of Petroleum Wax1This standard is issued under the fixed designation D1833;the number immediately following the designation indicates the
2、year oforiginal adoption or,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 covers a procedure for rating the odorinte
3、nsity of waxes derived from petroleum.1.2 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 applica-bility of regulatory limit
4、ations prior to use.2.Terminology2.1 Definitions:2.1.1 odor(of a wax)numerical rating corresponding tothe odor scale description that best fits the sample being tested.3.Summary of Test Method3.1 Odor test specimens are prepared from petroleum waxby placing approximately 10 g of thin shavings on odo
5、r-freepaper or glassine.Individual test specimens are then evaluatedfor odor by each panel member and assigned the numbercorresponding to the odor scale description best fitting theintensity of the odor.As an alternative procedure,the waxshavings are placed in bottles,with each panel member makingth
6、e odor evaluation between 15 and 60 min after the specimensare prepared.The average of the panel rating is reported as theodor rating of the sample.4.Significance and Use4.1 In some uses of petroleum wax,such as food packaging,odor intensity of the wax is an important property.Forexample,some descri
7、ption of limits on wax odor often appearsin specifications for petroleum wax.The method given hereprovides a basis for agreement between laboratories on theodor intensity of wax using a numerical scale rather thandescriptive terms.While the method is primarily intended forrating odor intensity,resul
8、ts can be influenced by odor type.5.Apparatus5.1 ScraperA knife,vegetable scraper,or other sharpinstrument that can be cleaned easily.Mechanical devices thatproduce thin shavings from wax,such as vegetable shreddersor chisel-shaped bits,may be used.5.2 PaperOdor-free paper or glassine for receiving
9、thewax shavings.5.3 Bottles,8-oz(250-mL)wide-mouth,with caps(foralternative procedure only).6.Test Panel6.1 The odor test panel should consist of at least five people.6.2 In selecting panel members for wax odor testing,theimportant factors to be considered are(1)agreement with the“true”rating,and(2)
10、individual consistency.A method whichmay be used for checking these factors is given in theAppendix X1.NOTE1Any members with respiratory infection should be omittedsince sensitivity may be impaired.7.Sample and Test Specimen7.1 The sample shall consist of a block of wax at roomtemperature,from which
11、 at least 100 g of shavings may beobtained.7.2 The test specimen for evaluation by each panel membershall consist of approximately 10 g of wax in thin shavingsobtained from the sample.8.Procedure8.1 Scrape the surface of the sample to remove any foreignmaterial and discard those scrapings.Using a cl
12、ean scraper,prepare test specimens of approximately 10 g each of wax inthin shavings,placing them on odor-free paper or glassine.Obtain shavings that represent a cross section of the samplebeing tested.Prepare one test specimen for each panel member.1This test method is under the jurisdiction of AST
13、M Committee D02 onPetroleum Products and Lubricantsand is the direct responsibility of SubcommitteeD02.10.0A on Physical/Chemical Properties.This test method was adopted as a jointASTM-IPStandard in 1965.In the IP,thismethod is under the jurisdiction of the Standardization Committee.Current edition
14、approved Nov.1,2012.Published November 2012.Originallyapproved in 1961.Last previous edition approved in 2007 as D183387(2007).DOI:10.1520/D1833-87R12.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 NOTE2Conduct odor tests in a room as fr
15、ee as possible from odor.Avoid low relative humidity conditions,if possible,since it may causedifficulty in odor perception.8.2 Each panel member shall make the odor evaluationimmediately after the shavings are prepared by placing thenostrils in contact with the shavings and sniffing lightly(Note3).
16、An alternative procedure is permitted as follows:Immedi-ately after preparing the shavings,transfer them to clean,odor-free bottles which are then capped.Prepare one bottle foreach panel member.Each panel member shall then evaluate thetest specimen between 15 and 60 min after preparation,byremoving the bottle cap,placing the nostrils at the bottle mouthand sniffing lightly.NOTE3If the specimen is smelled repeatedly,the odor level willusually seem to decrease due to“olfactory fatigue”or loss of v
