1、Designation: D4315 94 (Reapproved 2017)Standard Test Methods forRubber Compounding MaterialZinc Oxide1This standard is issued under the fixed designation D4315; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revis
2、ion. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 These test methods cover chemical and physical tests forzinc oxide that are considered to be important to its use inrubber compo
3、unding.1.2 The tests appear in the following order:Test SectionZinc Oxide 5Lead and Cadmium 6Sulfur 7Heat Loss 8Surface Area 9Sieve Residue 101.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard
4、 to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use For specificprecautions, see 5.2.2. Referenced Documents2.1 ASTM Standards:2D280 Test Methods for Hygroscopic Moisture (and OtherMatter Volatile Under the Test Conditions) i
5、n PigmentsD1193 Specification for Reagent WaterD3037 Test Method for Carbon BlackSurface Area byNitrogen Adsorption (Withdrawn 1999)3D3040 Practice for Preparing Precision Statements for Stan-dards Related to Rubber and Rubber Testing (Withdrawn1987)3D3280 Test Methods for Analysis of White Zinc Pig
6、mentsD4075 Test Methods for Rubber Compounding MaterialsFlame Atomic Absorption AnalysisDetermination ofMetalsE11 Specification for Woven Wire Test Sieve Cloth and TestSieves3. Significance and Use3.1 These test methods may be used for quality control ofzinc oxide used as a compounding material and
7、for researchand development studies where zinc oxide is used in a rubbermix.4. Reagents4.1 Purity of ReagentsReagent grade chemicals shall beused in all tests.4.2 Purity of WaterUnless otherwise indicated, referencesto water shall be understood to mean Type IV reagent water inaccordance with Specifi
8、cation D1193.ZINC OXIDE5. Procedure for Determination of % Zinc Oxide5.1 Analysis of white zinc pigments is covered in TestMethods D3280.5.2 Reagents and safety precautions for Test MethodsD3280 apply.5.3 Section 6 of Test Methods D3280 describes the analysisof total zinc in zinc oxide using dipheny
9、lamine as internalindicator.5.4 Section 7 of Test Methods D3280 describes the analysisof total zinc in zinc oxide using uranyl acetate as externalindicator.LEAD AND CADMIUM6. Procedure for Determination of Lead and Cadmium inZinc Oxide6.1 Test Methods D4075 is the standard test method formetal analy
10、sis in compounding materials using the flameatomic absorption technique.Analysis for cadmium and lead inzinc oxide are described in Sections 11 through 20 of TestMethods D4075.1These test methods are under the jurisdiction of ASTM Committee D11 onRubber and Rubber-like Materials and are the direct r
11、esponsibility of SubcommitteeD11.20 on Compounding Materials and Procedures.Current edition approved Feb. 1, 2017. Published February 2017. Originallyapproved in 1984. Last previous edition approved in 2012 as D4315 94 (2012).DOI: 10.1520/D4315-94R17.2For referenced ASTM standards, visit the ASTM we
12、bsite, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM Internation
13、al, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides
14、 and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1SULFUR7. Procedure for Determination of Sulfur in Zinc Oxide7.1 Analysis of white zinc pigments is covered in TestMethods D3280.7.2 Reagents and safety precautions for Test MethodsD3280 apply.7.3
15、 Section 9 of Test Methods D3280 describes the analysisof total sulfur in zinc oxide.HEAT LOSS8. Procedure for Determining Heat Loss in Zinc Oxide8.1 Use Test Methods D280, MethodA, for pigments that donot decompose at 110C.SURFACE AREA9. Surface Area of Zinc Oxide9.1 Use Procedure D of Test Methods
16、 D3037. Test MethodsD3037 are written for carbon black using a flowing gas surfacearea analyzer. It shall be followed with the following excep-tions:9.2 Sections 33.11 and 33.12 shall read:Accurately weigh a clean, dry, empty sample cell and record the mass.Using a small funnel, pour the zinc oxide
17、into the sample cell using thefollowing table as a guide for the approximate sample mass:Surface Area, 103m2/kg Zinc Oxide Mass, g940.200.350.500.709.3 Section 33.16 shall read:Outgas the Zinc Oxide at 200C for 20min9.4 Section 33.21 shall read:An attenuator setting of one is usually satisfactoryfor
18、 the surface areas and masses.NOTE 1See 9.2.9.5 Sections 33.33.1, 33.33.2 and 33.33.3 should be disre-garded as not relevant as there are currently no ASTMapproved reference standards for zinc oxide surface areas.SIEVE RESIDUE10. Procedure for Sieve Residue of Zinc Oxide10.1 Apparatus:10.1.1 Sieves,
19、 75-mm (3-in.) or 200-mm (8-in.) with 45-m(325-mesh) wire cloth.410.1.2 Balance, with a sensitivity of 60.1 mg.10.1.3 Drying Oven, maintained at 100 6 10C.10.1.4 Weighing Dish.10.1.5 Aerator, for hose connected to a tap-water supply.10.2 Reagents:10.2.1 Tap Water.10.3 Sampling:10.3.1 Sampling shall
20、be at the discretion of the analyst toobtain a representative sample of the lot to be tested.10.4 Procedure:10.4.1 Weigh a 10 to 100-g sample to 60.1 g in a suitableweighing dish. Small samples are used with the 75-mm (3-in.)sieve, large samples for the 200-mm (8-in.) sieve.10.4.2 Place the sample i
21、n the sieve and wash with a streamof tap water, directed onto the sieve from a hose. If any lumpsare detected after most of the zinc oxide has passed through thesieve, gently manipulate the lumps to break them up usingfinger tips or a small brush. This operation serves to break upany persistent lump
22、s of zinc oxide but is not stringent enoughto force coarse, hard particles through the sieve. Continuewashing with tap water until no more residue will pass throughthe sieve. When no more residue will pass through the sieve,place the sieve in an oven maintained at 100C until it is dry.10.4.3 Remove
23、the sieve from the oven and transfer anyweighable residue to a small weighing dish, which has beenpreviously weighed to 60.1 mg and weigh.10.5 Calculations:10.5.1 Calculate the percent sieve residue R as follows:R 5 W/S 3100 (1)where:R = sieve residue, %,W = mass of sieve residue, g, andS = mass of
24、sample, g.10.6 Report:10.6.1 The report shall include the following information:10.6.1.1 Proper identification of the sample.10.6.1.2 Results of two individual percent sieve residuedeterminations and their average.11. Precision and Bias11.1 Precision and bias statements are in the process ofbeing pr
25、epared in the form specified by Practice D3040. Theywill be added to these test methods when completed.12. Keywords12.1 chemical and physical tests for zinc oxide; heat loss;lead and cadmium in zinc oxide; sieve residue; sulfur in zincoxide; surface area; zinc oxide; zinc oxide percent4Detailed requ
26、irements for this sieve are given in Specification E11.D4315 94 (2017)2ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of
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29、ived 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) o
30、f 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 Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 94 (2017)3
