ASTM_C_429_-_16.pdf

Designation:C42916Standard 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 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,limestone,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 its 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 MaterialsC325 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 Practice for Probability Sampling of MaterialsE122 Practice for Calculating Sample Size to Estimate,WithSpecified Precision,the Average for a Characteristic of aLot or Process3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 unit for sampling,na carload lot or truckload lot ofbulk material,or the entire shipment of bagged material.3.1.2 sub lot,na fraction of a shipment of baggedmaterial,such as110or120of the lot.3.1.3 gross sample,nthe total number of sample incre-ments taken from the lot.3.1.4 sample increment,nan individual portion of thegross sample taken from the lot at a definite 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 sample,na 0.9 to 1.8-kg(2 to 4-lb)representative fraction of the gross sample.3.1.6 test specimen,na 100 to 150-g representative frac-tion of 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 Sieves: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=2:1in accordance with frames 1 in.(25 mm)deep(half height)arerecommended for mechanical shaking.The following sievesshall be provided:Sieve DesignationOpening SizeNo.82.36-mmNo.121.70-mmNo.161.18-mmNo.20850-mNo.30600-mNo.40425-mNo.50300-mNo.70212-mNo.100150-mNo.140106-mNo.20075-m5.1.2 Standard Matched 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 standard1This 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.1,2016.Published November 2016.Originallyapproved in 1959.Last previous edition approved in 2011 as C429 01(2011).DOI:10.1520/C0429-16.2For 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 Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 matched sieves or may be unmatched sieves conforming to5.1.1,provided that such sieves will give results that differ bynot 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 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 types 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 to 612minutes.5.3 Sample Splitters:5.3.1 For the reduction of the gross sampl