ASTM D1045-2014 Standard Test Methods for Sampling and Testing Plasticizers Used in Plastics《塑料用增塑剂的取样与测试的试验方法》.pdf
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1、Designation: D1045 14Standard Test Methods forSampling and Testing Plasticizers Used in Plastics1This standard is issued under the fixed designation D1045; 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.1. Scope*1.1 These test methods cover sampling and testing of liquidplasticizers used in compounding of plastics. Acid number,ester content, spec
3、ific gravity, color, refractive index, and watercontent are determined.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use
4、. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. Specific hazardsinformation is given in Section 5.NOTE 1There is no known ISO equivalent to this standard.2. Reference
5、d Documents2.1 ASTM Standards:2D70 Test Method for Density of Semi-Solid BituminousMaterials (Pycnometer Method)D287 Test Method for API Gravity of Crude Petroleum andPetroleum Products (Hydrometer Method)D792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by Displacem
6、entD883 Terminology Relating to PlasticsD1193 Specification for Reagent WaterD1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)D1218 Test Method for Refractive Index and RefractiveDispersion of Hydrocarbon LiquidsD1544 Test Method for Color of Transparent Liquids (Gard-ner Color Sc
7、ale)D1600 Terminology forAbbreviated Terms Relating to Plas-ticsD3465 Test Method for Purity of Monomeric Plasticizers byGas ChromatographyD4052 Test Method for Density, Relative Density, and APIGravity of Liquids by Digital Density MeterD5386 Test Method for Color of Liquids Using TristimulusColori
8、metryE1 Specification for ASTM Liquid-in-Glass ThermometersE203 Test Method for Water Using Volumetric Karl FischerTitrationE2251 Specification for Liquid-in-Glass ASTM Thermom-eters with Low-Hazard Precision Liquids3. Terminology3.1 DefinitionsDefinitions are in accordance with Termi-nology D883 an
9、d Terminology D1600, unless otherwise indi-cated.4. Significance and Use4.1 These test methods shall be used in establishing andconfirming quality control standards for liquid plasticizers usedin the compounding of plastics.5. Hazards5.1 Chemical Hazard of ReagentsIt is possible that someof the chem
10、icals used in this test method are hazardous.Accepted laboratory safety procedures must be followed. Seesuppliers material safety data sheets for further information.6. Sampling6.1 The method of sampling specified in 6.2 or 6.3 shall beused, according to the special conditions that exist.6.2 From Lo
11、aded Tank Car or Other Large VesselThecomposite sample taken shall be not less than 2 L (12 gal). It isimportant that the composite sample consists of small samplesof not more than 1 L (1 qt) each, taken from near the top andbottom by means of a metal or glass container with removablestopper or top.
12、 This device, attached to a suitable pole, shall belowered to the desired depth, when the stopper or top shall beremoved and the container allowed to fill. A bomb samplerattached to a chain is convenient to use; adjust the opening sothat the bomb will fill on the way down.6.3 From Barrels and DrumsA
13、t least 5 % of the packagesin any shipment shall be represented in the sample. It is1These methods are under the jurisdiction of ASTM Committee D20 on Plasticsand are the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials (Section D20.15.07 on Vinyl Chloride Polymers).Current edi
14、tion approved March 1, 2014. Published March 2014. Originallyapproved in 1949. Last previous edition approved in 2008 as D1045 - 08. DOI:10.1520/D1045-14.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMS
15、tandards volume information, refer to the standards Document Summary page onthe ASTM website.*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 States1permissible for the purchase
16、r to increase the percentage ofpackages to be sampled at his discretion; in the case ofplasticizers that are purchased in small quantity, it is permis-sible to sample and analyze each package, if desired. A portionshall be withdrawn from near the center of each packagesampled by means of a “thief” o
17、r other sampling device andcomposited. The composite sample thus obtained shall be notless than 1 L (1 qt) and shall consist of equal portions of notless than 250 mL (12 pt) from each package sampled.7. Purity of Reagents7.1 Purity of ReagentsReagent-grade chemicals shall beused in all tests. Unless
18、 otherwise indicated, it is intended thatall reagents shall conform to the specifications of the Commit-tee on Analytical Reagents of the American Chemical Society,where such specifications are available.37.2 Unless otherwise indicated, references to water shall beunderstood to mean reagent water co
19、nforming to SpecificationD1193.8. Thermometers8.1 All temperature measurements shall be made withASTM thermometers of suitable range, accurate to within0.1C and conforming to the requirements prescribed inSpecification E1. Thermometric devices such as RTDs,thermistors, thermocouples, and liquid-in-g
20、lass thermometers(as in Specification E2251), with appropriate temperaturerange and equal or better accuracy as the selected thermometer,are acceptable for use.9. Acid Number9.1 Reagents:9.1.1 AlcoholDenatured alcohol, Formula No. 3A of theU. S. Bureau of Alcohol, Tobacco, and Firearms.9.1.2 Alkali,
21、 Standard Solution (0.01 N)Prepare and stan-dardize a 0.01 N aqueous solution of sodium hydroxide(NaOH) or a 0.01 N alcoholic solution of potassium hydroxide(KOH).9.1.3 Alkali, Standard Solution (0.1 N)Prepare and stan-dardize a 0.1 N aqueous solution of sodium hydroxide (NaOH)or a 0.1 N alcoholic s
22、olution of potassium hydroxide (KOH).9.1.4 Acetone.9.1.5 Bromthymol Blue Indicator Solution.10. Procedure10.1 Weigh 25 g of the sample into a 125-mL Erlenmeyerflask and dissolve in 50 mL of alcohol. If the sample is notcompletely soluble in alcohol, use 50 mL of a mixture of equalparts of alcohol an
23、d acetone. With certain samples it willpotentially be necessary first to add 25 mL of acetone, warm toeffect solution, and then add 25 mL of alcohol.10.2 Add a few drops of bromthymol blue indicator solutionand titrate with 0.01 N NaOH or KOH solution. If the titrationexceeds 10 mL, repeat the deter
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