ASTM C429-2001(2011) Standard Test Method for Sieve Analysis of Raw Materials for Glass Manufacture《玻璃制造原材料筛分分析的标准试验方法》.pdf
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1、Designation: C429 01 (Reapproved 2011)Standard Test Method forSieve Analysis of Raw Materials for Glass Manufacture1This standard is issued under the fixed designation C429; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year
2、of last revision. 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 This test method covers the sieve analysis of commonraw materials for glass manufacture, such as sand, soda-ash,lim
3、estone, alkali-alumina silicates, and other granular materialsused in glass batch.1.2 The values stated in SI units are to be regarded as thestandard. The values in parentheses are for information only.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with i
4、ts use. 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.2. Referenced Documents2.1 ASTM Standards:2C92 Test Methods for Sieve Analysis and Water Content ofRefractory Mat
5、erialsC325 Guide for Wet Sieve Analysis of Ceramic WhitewareClaysC371 Test Method for Wire-Cloth Sieve Analysis of Non-plastic Ceramic PowdersD346 Practice for Collection and Preparation of CokeSamples for Laboratory AnalysisE11 Specification for Woven Wire Test Sieve Cloth and TestSievesE105 Practi
6、ce for Probability Sampling of MaterialsE122 Practice for Calculating Sample Size to Estimate,With Specified Precision, the Average for a Characteristicof a Lot or Process3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 unit for samplinga carload lot or truckload lot ofbulk mat
7、erial, or the entire shipment of bagged material.3.1.2 sublota fraction of a shipment of bagged material,such as110 or120 of the lot.3.1.3 gross samplethe total number of sample incrementstaken from the lot.3.1.4 sample incrementan individual portion of the grosssample taken from the lot at a defini
8、te time or location, or both;increments shall be of nearly equal weight or volume, or both.3.1.4.1 DiscussionA 2.2 to 4.5-kg (5 to 10-lb) incrementgenerally is satisfactory in sampling raw materials for glassmanufacture, for determining particle size distribution.3.1.5 laboratory samplea 0.9 to 1.8-
9、kg (2 to 4-lb) repre-sentative fraction of the gross sample.3.1.6 test specimena 100 to 150-g representative fractionof the laboratory sample.4. Significance and Use4.1 The purpose of this test method is to determine theparticle size distribution of the glass raw materials.5. Apparatus5.1 Testing Si
10、eves:5.1.1 Sieves shall conform to Specification E11 with par-ticular reference to Table 1 and Section 4 on Frames. Sievesshall be designated by the U. S. Standard Series of sievenumbers and shall vary in opening size by the ratio of the=2:1, in accordance with frames 1 in. (25 mm) deep (halfheight)
11、 are recommended for mechanical shaking. The follow-ing sieves shall be provided:Sieve Designation Sieve DesignationNo. 8 (2.36-mm) No. 50 (300-m)No. 12 (1.70-mm) No. 70 (212-m)No. 16 (1.18-mm) No. 100 (150-m)No. 20 (850-m) No. 140 (106-m)No. 30 (600-m) No. 200 (75-m)No. 40 (425-m)5.1.2 Standard Mat
12、ched SievesAreference set of standardmatched sieves shall be provided for use in checking the set ofsieves used in the actual sieve analysis of samples. The sievesfor use in sieve analysis of samples may also be standardmatched sieves or may be unmatched sieves conforming to5.1.1, provided that such
13、 sieves will give results that differ by1This test method is under the jurisdiction of ASTM Committee C14 on Glassand Glass Products and is the direct responsibility of Subcommittee C14.02 onChemical Properties and Analysis.Current edition approved Oct. 1, 2011. Published October 2011. Originallyapp
14、roved in 1959. Last previous edition approved in 2006 as C429 01(2006). DOI:10.1520/C0429-01R06.2For 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 standards Docume
15、nt Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.not more than 5 % from those obtained with the reference setwhen the two sets are compared in accordance with Section 6.5.2 Sieve ShakerA mechanically
16、 operated sieve shakerthat imparts to the set of sieves a rotary motion and tappingaction of uniform speed shall be provided. The number of tapsper minute shall be between 140 and 150. The sieve shakershall be fitted with a wooden plug or rubber stopper to receivethe impact of the tapper. Other type
17、s of mechanical shakersmay be used, provided they can be adjusted to duplicate within5 % results obtained by the type specified above, when testedwith the same sample and standard matched sieves. The shakershall be equipped with an automatic timer accurate to12 min.5.3 Sample Splitters:5.3.1 For the
18、 reduction of the gross sample to laboratorysize, either a large riffle with 25-mm (1-in.) openings or asample splitter of the type that cuts out a fractional part (forexample, a twelfth or a sixteenth) of the gross sample may beused. Sample splitters are available commercially or may beconstructed
19、by the user. The criterion for their use is that theyshall produce a representative sample.5.3.2 Riffles with openings of 6.4 to 13 mm (14 to12 in.) arerequired for reducing the laboratory sample to test size. Theriffle opening must be at least three times the width of thelargest particle diameter.
20、This restricts use of a riffle with6.4-mm openings to materials passing a No. 8 sieve.5.4 BalanceA suitable balance or scale capable of weigh-ing accurately to 0.1 g shall be used. A more sensitive balancemay be used for weighing small fractions when they areconsidered critical.6. Testing of Sieves
21、and Sample Splitters6.1 Since standard matched sieves are specified for thepurpose of this test method, calibration as such by the tester isobviated. However, the tester must have a method to check theprecision of the sieves. This shall be accomplished by havingavailable at least two sets of sieves:
22、 a reference set and aworking set. The reference set shall consist of standardmatched sieves and shall be reserved for testing the workingset. The working set also may consist of standard matchedsieves or of sieves the tester has proven to be satisfactory (see6.2). The testing of the working sieves
23、is necessary becausesieves will gradually change their characteristics after longusage from clogging and wear. The working set should betested after every 100 to 150 sieve analyses. The test shall bemade by sieving a suitable test sample through the working setas directed in Section 10, and then sie
24、ving the same test samplethrough the reference set. The results shall be calculated andcompared.All testing sieves of the working set that give resultswithin 10 % of the reference set shall be considered satisfac-tory for use. (See Appendix X1 for an example of this test.)6.2 A new unmatched sieve c
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