1、Designation:D237822Standard Specification forFormaldehyde 50%Grade Uninhibited and 37%GradeInhibited and Uninhibited1This standard is issued under the fixed designation D2378;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year o
2、f 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 specification covers 50%uninhibited formalde-hyde and 37%uninhibited and inhibited formaldehyde.1.2 The following ap
3、plies to all specified limits in thisstandard;for purposes of determining conformance with thisstandard,an observed value or a calculated value shall berounded off“to the nearest unit”in the last right-hand digitused in expressing the specification limit,in accordance withthe rounding-off method of
4、Practice E29.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.4 For specific hazard information and guidance,see thesuppliers Material Safety Data Sheet for materials listed in thisspecification.1.5 This international standa
5、rd was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referen
6、ced Documents2.1 ASTM Standards:2D891 Test Methods for Specific Gravity,Apparent,of LiquidIndustrial ChemicalsD1209 Test Method for Color of Clear Liquids(Platinum-Cobalt Scale)D2087 Test Method for Iron in Formaldehyde Solutions(Withdrawn 2021)3D2194 Test Method for Concentration of FormaldehydeSol
7、utions(Withdrawn 2021)3D2379 Test Method for Acidity of Formaldehyde SolutionsD2380 Test Method for Methanol Content of FormaldehydeSolutionsD5386 Test Method for Color of Liquids Using TristimulusColorimetryE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specific
8、ationsE300 Practice for Sampling Industrial Chemicals2.2 U.S.Federal Standard:4PPP-C-2020 Federal Specification For Packaging ofChemicals,Liquid,Dry,and Paste3.Properties3.1 The physical and chemical properties of formaldehyde,50%uninhibited and 37%uninhibited and inhibited,shallconform to the requi
9、rements specified in Table 1.NOTE1Instrumental Pt-Co color determined by Test Method D5386has been shown to have no statistically significant difference from Pt-Cocolor determined by Test Method D1209.However,it is not knownwhether formaldehyde was part of the sample set included in theinterlaborato
10、ry study.4.Sampling4.1 The material shall be sampled in accordance withPractice E300.5.Hazards5.1 Formaldehyde and formaldehyde solutions are toxic andexposure to them should be minimized to avoid acute effectsand possible sensitizing.Consult the suppliers Material SafetyData Sheet for specific haza
11、rd information.1This specification is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.35 on Solvents,Plasticizers,and Chemical Intermediates.Current edition approved Jan.1,2022.Published January
12、2022.Originallyapproved in 1965.Last previous edition approved in 2012 as D2378 07(2012)which was withdrawn January 2021 and reinstated in January 2022.DOI:10.1520/D2378-22.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annua
13、l 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.4Available from U.S.Government Printing Office Superintendent of Documents,732 N.Capitol St.,NW,Mail Stop:SDE
14、,Washington,DC 20401,http:/www.access.gpo.gov.Copyright 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
15、on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.16.Test Methods6.1 The properties enumerated in this specification shall bedetermined in accordance with the following ASTM testmeth
16、ods:6.1.1 Apparent Specific GravityTest Methods D891.6.1.2 Formaldehyde ContentTest Method D2194.6.1.3 AcidityTest Method D2379.6.1.4 ColorTest Method D1209(see Note 1).6.1.5 IronTest Method D2087.6.1.6 Methanol ContentTest Method D2380.7.Packaging and Package Marking7.1 Package size to be agreed upon between the purchaserand supplier.7.2 Packaging shall conform to applicable carrier rules andregulations or when specified shall conform to Fed.Spec.PPP-C-2020.8.Keywords8.1 acidity;color;formaldeh
