1、Designation:D112008 Designation: D1120 11Standard Test Method forBoiling Point of Engine Coolants1This standard is issued under the fixed designation D1120; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision.
2、 A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This test method covers the determination of the e
3、quilibrium boiling point of engine coolants. The equilibrium boiling pointindicates the temperature at which the sample will start to boil in a cooling system under equilibrium conditions at atmosphericpressure.NOTE 1Engine coolants may also be marketed in a ready-to-use form (prediluted). This test
4、 procedure is applicable to diluted solutions as well asto concentrates.NOTE 2The procedure for obtaining a representative test sample of a coolant solution that contains an antileak additive is found in Test MethodD1176.1.2 The values stated in SI units are to be regarded as standard. The values gi
5、ven in parentheses are for information only.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulato
6、rylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D1176 Practice for Sampling and Preparing Aqueous Solutions of Engine Coolants or Antirusts for Testing PurposesE1 Specification for ASTM Liquid-in-Glass Thermometers Specification for ASTM Liquid-in-Glass ThermometersE230 Specifi
7、cation and Temperature-Electromotive Force (EMF) Tables for Standardized Thermocouples3. Summary of Test Method3.1 Sixty millilitres (two ounces) of the sample are boiled under equilibrium conditions at atmospheric pressure in a 100-mLflask. The temperature of the liquid corrected for barometric pre
8、ssure is the boiling point.4. Apparatus ( Apparatus (see Fig. 1)4.1 FlaskA 100-mL round-bottom, short-neck, heat-resistant glass flask having a neck with a1938 standard-taper, femaleground-glass joint and a 10-mm (0.4-in) outside diameter side-entering tube, so located as to permit the end of the th
9、ermometerbulb to be directly centered in the flask 6.5 mm (0.26 in.) from the bottom.3The flask is shown in Fig. 2.4.2 CondenserThe condenser shall be of the water-cooled, reflux, glass-tube type, having a condenser jacket 200 mm (7.9 in.)in length. The bottom end of the condenser shall have a1938 s
10、tandard-taper, drip-tip, male ground-glass joint.4.3 Boiling Stones Three or four silicon carbide grains,4grit No. 8 or other suitable inert chips, shall be used for eachdetermination. For samples exhibiting heavy foam, more boiling chips may be added.4.4 ThermometerTemperature Measuring Instrument
11、(Environmentally Safe Thermometer or Thermocouple)An ASTMPartial Immersion Thermometer, having a range from 5 to 300C (20 to 580F) and conforming to the requirements forThermometer 2C or 2F, as prescribed in Specification E1, or some other suitable non-mercury containing temperature measuringdevice,
12、 such as a thermocouple, capable of operating in the same temperature range and having equal or better accuracy assummarized in Specification E230. See Section 10, Precision and Bias. The data presented in this paragraph is derived usingmercury-in-glass thermometers only.1This test method is under t
13、he jurisdiction of ASTM Committee D15 on Engine Coolants and is the direct responsibility of Subcommittee D15.03 on Physical Properties.Current edition approved Oct.March 1, 2008.2011. Published November 2008.March 2011. Originally approved in 1950 as D1120 50 T. Last previous edition approvedin 200
14、42008 as D112094(2004).D1120 08. DOI: 10.1520/D1120-08.10.1520/D1120-11.2For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the AST
15、M website.3The short-neckflask shown in Fig. 2 can be purchased from S.G. to be subtractedin case barometric pressure is above 760 mm.D1120 11310.1.2 For unused concentrated samples boiling below 100C (212F), results should not differ from each other by more than1.4C (2.5F), and for samples boiling
16、above 100C (212F), results should not differ by more than 5.6C (10F).10.2 BiasSince there is no accepted reference material suitable for determining the bias for the procedure in this test method,bias has not been determined.11. Keywords11.1 boiling point; engine coolantSUMMARY OF CHANGESSubcommitte
17、e D15.03 has identified the location of selected changes to this standard since the last issue(D1120-94(2004)(D1120-08) that may impact the use of this standard.(1)Reworded thermometer specifications. ) Replaced the term 9thermometer9 with 9temperature measuring instrument orthermocouple9 throughout
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19、e entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must 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 standa
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21、tee 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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D1120 114
