ASTM D1510-2016a Standard Test Method for Carbon Black&x2014 Iodine Adsorption Number《炭黑的标准试验方法 碘吸附值》.pdf
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1、Designation: D1510 16D1510 16aStandard Test Method forCarbon BlackIodine Adsorption Number1This standard is issued under the fixed designation D1510; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A numb
2、er 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 U.S. Department of Defense.1. Scope1.1 This test method covers the determination of the iodi
3、ne adsorption number of carbon black.1.1.1 Method A is the original test method for this determination and Method B is an alternate test method using automatedsample processing and analysis.1.2 The iodine adsorption number of carbon black has been shown to decrease with sample aging. New SRB HT Iodi
4、neStandards have been produced that exhibit stable iodine number upon aging. One or more of these SRB HT Iodine Standards arerecommended for daily monitoring (x-charts) to ensure that the results are within the control limits of the individual standard. Useall SRB HT Iodine Standards for standardiza
5、tion of iodine testing (see Section 8) when target values cannot be obtained.1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with
6、 its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D1799 Practice for Carbon BlackSampling Packaged ShipmentsD1900 Practic
7、e for Carbon BlackSampling Bulk ShipmentsD4483 Practice for Evaluating Precision for Test Method Standards in the Rubber and Carbon Black Manufacturing IndustriesD4821 Guide for Carbon BlackValidation of Test Method Precision and BiasE969 Specification for Glass Volumetric (Transfer) Pipets2.2 Europ
8、ean Standards:3ISO/EN/DIN 8655-3 Piston-operated volumetric apparatus - Part 3: Piston burettes3. Summary of Test Methods3.1 In Test Method A, a weighed sample of carbon black is treated with a portion of standard iodine solution and the mixtureshaken and centrifuged. The excess iodine is then titra
9、ted with standard sodium thiosulfate solution, and the adsorbed iodine isexpressed as a fraction of the total mass of black.3.2 In Test Method B, a weighed sample of carbon black is treated with a portion of standard iodine solution using an automatedsample processor where the mixture is stirred, se
10、ttled and aliquoted for automatic titration. The excess iodine is titrated withstandard sodium thiosulfate solution, and the adsorbed iodine is expressed as a fraction of the total mass of black.4. Significance and Use4.1 The iodine adsorption number is useful in characterizing carbon blacks. It is
11、related to the surface area of carbon blacks andis generally in agreement with nitrogen surface area. The presence of volatiles, surface porosity, or extractables will influence theiodine adsorption number. Aging of carbon black can also influence the iodine number.1 This test method is under the ju
12、risdiction of ASTM Committee D24 on Carbon Black and is the direct responsibility of Subcommittee D24.21 on Carbon Black SurfaceArea and Related Properties.Current edition approved Jan. 1, 2016Nov. 1, 2016. Published February 2016November 2016. Originally approved in 1957. Last previous edition appr
13、oved in 20132016as D1510 13.D1510 16. DOI: 10.1520/D1510-16.10.1520/D1510-16A.2 For 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
14、the ASTM website.3 Available from International Organization for Standardization (ISO), 1, ch. de la Voie-Creuse, CP 56, CH-1211 Geneva 20, Switzerland, http:/www.iso.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes
15、have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official
16、document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15. Apparatus5.1 Vials, glass, optically clear type, with polyethylene stoppers, 45 cm3.5.2 Gravity Convection Drying Oven, capable of maintaining 125 6 5C.5.3 Buret, either of t
17、he following may be used:5.3.1 Digital Buret, 25-cm3 capacity, with 0.01-cm3 increment counter and zero reset control, or5.3.2 Buret, glass 25-cm3, Class A, side-arm filling, graduated in 0.05 cm3 and with automatic zero.5.4 Repetitive Dispenser, 25-cm3 capacity, 60.1% reproducibility and calibrated
18、 to within 60.03-cm3 accuracy.5.5 Balance, analytical, with 0.1-mg sensitivity.5.6 Centrifuge, with minimum speed of 105 rad/s (1000 rmin).5.7 Volumetric Flask, 2000-cm3 with standard taper stopper.5.8 Funnel, large diameter, with standard taper joint to fit the 2000-cm3 flask.5.9 Glass Bottle, ambe
19、r, 2000-cm3, with standard taper stopper.5.10 Glass Jug, approximate capacity 20-dm3.5.11 Stirrer, approximately 300 by 300 mm for mixing.5.12 Stirrer, approximately 100 by 100 mm for titrating.5.13 Desiccator.5.14 Miscellaneous Class A Glassware, and equipment necessary to carry out the test as wri
20、tten.5.15 Mechanical Shaker, with at least 1 in. stroke length and a minimum of 240 strokes/min.5.16 Automatic Titrator.5.17 Redox Electrode, combined platinum ring electrode with an Ag/AgCl/KCl reference electrode and a ceramic frit.5.18 Volumetric Flask, 500 cm3 with standard taper stopper.5.19 Fl
21、ask, 250 cm3 with ground glass stopper.5.20 Automatic Sample Processor and Titration Apparatus, equipped with disposable filter.46. Reagents and Solutions6.1 Purity of ReagentsUnless otherwise stated, all chemicals shall be of reagent grade.6.2 The preparation of the solutions listed below is descri
22、bed in Annex A1. Pre-mixed 0.04728 N iodine solution and 0.0394N sodium thiosulfate may be purchased from commercial sources. It is recommended that the normality of pre-mixed solutionsbe verified before use.6.3 Iodine Solution, c(I2) = 0.02364 mol/dm3 (0.04728 N), containing 57.0 g potassium iodide
23、 Kl per dm3.6.4 Potassium Iodate Solution, c(KIO3) = 0.00657 mol/dm3 (0.0394 N ) containing 45.0 g potassium iodide per dm3.6.5 Potassium Dichromate Solution, c(K2Cr2O7) = 0.006567 mol/cm3 (0.0394 N), containing 1.932 g potassium dichromate(certified/traceable primary standard) per dm3. (WarningPota
24、ssium dichromate is carcinogenic.)6.6 Sodium Thiosulfate Solution, c(Na2S2O3) = 0.0394 mol/dm3 (0.0394 N), containing 5 cm3 n-amyl alcohol per dm3.6.7 Sulfuric Acid, 10 %.6.8 Soluble Starch Solution, 1 %, containing 0.02 g salicylic acid per dm3.6.9 Deionized Water.7. Standardization of Solutions7.1
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