1、Designation:D332590(Reapproved 2020)Standard Practice forPreservation of Waterborne Oil Samples1This standard is issued under the fixed designation D3325;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A num
2、ber in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This practice covers the preservation of waterborne oilsamples from the time of collection to the time of analysis.Information is provided to
3、ensure sample integrity and to avoidcontamination and to minimize microbial degradation.1.2 The practice is for controlled field or laboratory condi-tions and specifies thorough preparation of equipment andprecise operation.Where these details must be compromised ina field emergency,nonstandard simp
4、lifications are recom-mended that will minimize or eliminate consequent errors.NOTE1Procedures for the analysis of oil spill samples are PracticesD3326,D3415,and D4489,and Test Methods D3650,D3327,D3328,andD3414.A guide to the use of ASTM test methods for the analysis of oilspill samples is found in
5、 Practice D3415.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4 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 es
6、tablish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles
7、 for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1129 Terminology Relating to WaterD3326 Practice for Preparation of Samples for Identificationof Water
8、borne OilsD3327 Test Method for Analysis of Selected Elements inWaterborne Oils(Withdrawn 1993)3D3328 Test Methods for Comparison of Waterborne Petro-leum Oils by Gas ChromatographyD3414 Test Method for Comparison of Waterborne Petro-leum Oils by Infrared Spectroscopy(Withdrawn 2018)3D3415 Practice
9、for Identification of Waterborne OilsD3650 Test Method for Comparison of Waterborne Petro-leum Oils By Fluorescence Analysis(Withdrawn 2018)3D4489 Practices for Sampling of Waterborne Oils3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this standard,refer toTerminology D1129.4.Su
10、mmary of Practice4.1 Special types of sample containers and shipping con-tainers are recommended.Samples may be of several types:tarballs,collected oil,oil-water mixtures,emulsions,and oil andwater on collecting devices such as silanized glass cloth,TFE-fluorocarbon polymer,or other materials.Instru
11、ctions aregiven for the care of samples to minimize changes due toautoxidation and microbial attack between the time of sam-pling and the time of analysis.Services available for transpor-tation of samples are described.5.Apparatus5.1 Sample ContainersBorosilicate glass containers thathave been thoro
12、ughly cleaned are preferable.All glasscontainers,new or used,must be thoroughly cleaned andwashed prior to use.The cleaning steps consist of an initialwash with a warm aqueous detergent mixture followed by sixhot tap water rinses,two rinses with reagent water,a rinse withreagent-grade acetone,and a
13、final rinse with a solvent such aspentane,hexane,cyclohexane,dichloromethane,or chloroformfollowed by drying in a clean oven at 105C or hotter for 30min.If the glassware requires cleaning under field conditions,it should be washed with warm aqueous detergent followed byextensive water rinsing.Asolve
14、nt rinse with acetone should bemade,if possible,followed by lengthy air drying to remove1This practice is under the jurisdiction of ASTM Committee D19 on Water andis the direct responsibility of Subcommittee D19.06 on Methods for Analysis forOrganic Substances in Water.Current edition approved Jan.1
15、,2020.Published January 2020.Originallyapproved in 1974.Last previous edition approved in 2013 as D3325 90(2013).DOI:10.1520/D3325-90R20.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume infor
16、mation,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevel