1、Designation: D 2378 07Standard Specification forFormaldehyde 50 % Grade Uninhibited and 37 % GradeInhibited and Uninhibited1This standard is issued under the fixed designation D 2378; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、 the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers 50 % uninhibited formalde-hyde and 37 % uninhibited and inhibited formaldehyd
3、e.1.2 The following applies 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 with
4、the rounding-off method of 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.
5、2. Referenced Documents2.1 ASTM Standards:2D 891 Test Methods for Specific Gravity, Apparent, ofLiquid Industrial ChemicalsD 1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D 2087 Test Method for Iron in Formaldehyde SolutionsD 2194 Test Method for Concentration of FormaldehydeSol
6、utionsD 2379 Test Method for Acidity of Formaldehyde SolutionsD 2380 Test Method for Methanol Content of Formalde-hyde SolutionsD 5386 Test Method for Color of Liquids Using TristimulusColorimetryE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 300
7、Practice for Sampling Industrial Chemicals2.2 U.S. Federal Standard:PPP-C-2020 Federal Specification For Packaging of Chemi-cals, Liquid, Dry, and Paste33. Properties3.1 The physical and chemical properties of formaldehyde,50 % uninhibited and 37 % uninhibited and inhibited, shallconform to the requ
8、irements specified in Table 1.NOTE 1Instrumental Pt-Co color determined by Test Method D 5386has been shown to have no statistically significant difference from Pt-Cocolor determined by Test Method D 1209. However, it is not knownwhether formaldehyde was part of the sample set included in theinterla
9、boratory study.4. Sampling4.1 The material shall be sampled in accordance withPractice E 300.5. 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 spe
10、cific hazard information.6. Test Methods6.1 The properties enumerated in this specification shall bedetermined in accordance with the following ASTM testmethods:6.1.1 Apparent Specific GravityTest Methods D 891.6.1.2 Formaldehyde ContentTest Method D 2194.6.1.3 AcidityTest Method D 2379.6.1.4 ColorT
11、est Method D 1209 (see Note 1).6.1.5 IronTest Method D 2087.6.1.6 Methanol ContentTest Method D 2380.7. 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 con
12、form to Fed. Spec.PPP-C-2020.1This 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 June 1, 200
13、7. Published July 2007. Originally approvedin 1965. Last previous edition approved in 2002 as D 2378 02.2For 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 standard
14、s Document Summary page onthe ASTM website.3Available from U.S. Government Printing Office Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.access.gpo.gov.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM Internationa
15、l, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.8. Keywords8.1 acidity; color; formaldehyde; methanolSUMMARY OF CHANGESCommittee D01.35 has identified the location of selected changes to this standard since the last issue(D 2378 - 02) that may impact the use of
16、 this standard. (Approved June 1, 2007.)(1) Added new Note 1 to Table 1.(2) Added Test Method D 5386 to list of Referenced Docu-ments.(3) Referenced new Note 1 in 6.1.4.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin
17、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 by the responsible technical committee and must
18、 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 receive careful consideration at a meeting of ther
19、esponsible 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 International, 100 Barr Harbor Drive, PO Box C700,
20、 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).TABLE 1 Phys
21、ical and Chemical Properties of FormaldehydeFormaldehyde 50 % Grade Formaldehyde 37 % GradeApparent specific gravity at 25/25C 1.1470 1.1520 1.0749 1.1139Formaldehyde content, weight % 49.75 50.5 37.0 37.4Acidity, as formic acid, max, weight % 0.05 0.02Color, max, Pt-Co scale (Note 1)1 1Iron, max, ppm (weight) 1.0 1.0Methanol content, max, weight % 1.5 as agreed upon between the purchaser and sellerAppearance clear and free of suspended matter clear and free of suspended matterD2378072
