1、Designation: D 1257 07Standard Specification forHigh-Gravity Glycerin1This standard is issued under the fixed designation D 1257; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses in
2、dicates 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 high-gravity glycerin (98.7weight %, minimum) for use in the manufacture of alkyd andother synthetic resins.1.2 The following appli
3、es 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
4、of Practice E29.1.3 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.4 For specific hazard information and guidance, see thesuppliers Material Safety Data Sheet for materials listed in thisspecification.2. Referenced Documents
5、2.1 ASTM Standards:2D 1258 Test Methods for High-Gravity GlycerinE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 U.S. Federal Standard:PPP-C-2020 Chemicals, Liquid, Dry, and Paste: Packagingof33. Properties3.1 The glycerin shall conform to the fo
6、llowing require-ments:Apparent specific gravity, min:15.6/15.6C (60/60F) 1.2620or25/25C 1.2587Color, Pt-Co scale, max 20Sulfate ash, max, weight % 0.1Acid value, max, mg KOH per g ofmaterial0.3_4. Test Methods and Sampling4.1 The material shall be sampled and the properties enu-merated in this speci
7、fication determined in accordance withTest Method D 1258.5. Packaging and Package Marking5.1 Package size to be agreed upon between the purchaserand supplier.5.2 Packaging shall conform to applicable carrier rules andregulations or when specified shall conform to Fed. Spec.PPP-C-2020.6. Keywords6.1
8、high-gravity glycerins1This 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, 2007. Publ
9、ished July 2007. Originally approvedin 1979. Last previous edition approved in 2001 as D 1257 90 (2001).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
10、s Document Summary page onthe ASTM website.3Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Ba
11、rr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.SUMMARY OF CHANGESCommittee D01.35 has identified the location of selected changes to this standard since the last issue(D 1257 - 90 (2001) that may impact the use of this standard. (Approved June 1, 2007.)(1) Added refere
12、nced to Practice E29in Scope section.(2) Added Practice E29to list of Referenced Documents.(3) Changed specs limits for apparent specific gravity in 3.1.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. U
13、sers 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 be reviewed eve
14、ry 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 theresponsible techn
15、ical 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, 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).D1257072
