1、Designation: C 602 07Standard Specification forAgricultural Liming Materials1This standard is issued under the fixed designation C 602; 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 parenthe
2、ses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope*1.1 This specification covers agricultural liming materials,such as quickl
3、ime (burnt lime), hydrated lime, limestone,(calcitic and dolomitic), marl, shells, and by-products includ-ing slag, and other materials.1.2 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 es
4、tablish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C25 Test Methods for Chemical Analysis of Limestone,Quicklime, and Hydrated LimeC50 Practice for Sampling, Sample Preparation, Packag-in
5、g, and Marking of Lime and Limestone ProductsC110 Test Methods for Physical Testing of Quicklime,Hydrated Lime, and LimestoneC 125 Terminology Relating to Concrete and ConcreteAggregatesD 3176 Practice for Ultimate Analysis of Coal and CokeE11 Specification for Wire Cloth and Sieves for TestingPurpo
6、ses3. Terminology3.1 Definitions:3.1.1 agricultural liming materiala product whose cal-cium and magnesium compounds are capable of neutralizingsoil acidity.3.1.2 air-cooled blast-furnace slag and granulated blast-furnace slagair-cooled blast-furnace slag and granulatedblast furnace slag as defined i
7、n Terminology C 125.3.1.3 calcium carbonate equivalent (C.C.E.)the acid-neutralizing capacity (of an agricultural liming material) of thematerial expressed as weight percent of calcium carbonate.4. Chemical Classifications4.1 Agricultural liming materials shall be classified in termsof calcium carbo
8、nate equivalent (C.C.E.), as shown in Table 1.NOTE 1Marl and some by-product liming materials are used forneutralizing soil acidity, but due to their varying composition, theirchemical limits are not included. In some economic circumstanceslimestone, slag, and shells of less than 80 % C.C.E. may be
9、used.5. Sieve Analysis Classifications for AgriculturalLimestone5.1 Agricultural limestone shall be classified according tothe minimum percentages passing the No. 8 (2.36-mm) andNo. 60 (250-m) sieves conforming to Specification E11,asshown in Table 2.NOTE 2These classifications apply where the agric
10、ultural limestone isobtained by the normal crushing procedure and the product contains thefines of fracture. In some economic circumstances, coarser products are1This specification is under the jurisdiction of ASTM Committee C07 on Limeand is the direct responsibility of Subcommittee C07.03 on Envir
11、onmental andIndustrial Uses.Current edition approved June 15, 2007. Published July 2007. Originallyapproved in 1967. Last previous edition approved in 2006 as C 602 06a.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annua
12、l Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.TABLE 1 Agricultural Liming MaterialsMaterialCalcium CarbonateEquivalent (C.C.E.),percentQuicklime not less than 140Hydrated lime not less than 110Limestone not less than 80Slag not less than
13、80Shells not less than 80TABLE 2 Classification for Agricultural LimestoneClassDesignationPassing No. 8(2.36-mm)Sieve, min,percentPassing No. 60(250-m)Sieve, min,percentS 100 100T9975O95N9040E821*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr
14、Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.used. The No. 60 (250-m) sieve was selected because research has shownthat this sieve gives a more accurate representation of the particle sizedistribution of most agricultural limestones presently produced than a fineror coa
15、rser sieve. The No. 8 (2.36-mm) sieve is used to control the upperlimit on the amount of coarse limestone particles that may be in theproduct.6. Sieve Analysis Classifications for Agricultural Slag6.1 Air-Cooled Blast-Furnace SlagAir-cooled blast-furnace slag shall be classified the same as agricult
16、urallimestone as shown in Section 5.6.2 Granulated Blast-Furnace SlagGranulated blast-furnace slag shall be classified in accordance with the mini-mum percentages passing the No. 8 (2.36-mm) and the No. 60(250-m) sieves.7. Particle Size Requirements for Hydrated Lime andQuicklime7.1 Hydrated lime an
17、d quicklime for agricultural use shallbe classified in accordance with the minimum percentagespassing the No. 8 (2.36-mm) and No. 60 (250-m) sieves, asfollows:Min. %Passing Sieve No. Hydrated Lime Quicklime8 (2.36 mm) 100 9560 (250 m) 97 358. Sampling8.1 Sampling shall be conducted using the procedu
18、resspecified in Practice C50.9. Chemical Methods9.1 Reagent grade chemicals or equivalent and water purityshall be used as specified in Test Methods C25.9.2 The analytical sample for chemical methods relative tothis standard shall be pulverized to pass a 60 mesh sieve.9.3 The following chemical para
19、meters are to be determinedusing the methods as specified in Test Methods C25.9.3.1 Calcium carbonate equivalent, and9.3.2 Total calcium and magnesiumdetermination can bemade either gravimetrically or by EDTA titration.SIEVE ANALYSIS OF AGRICULTURAL LIMINGMATERIALS10. Preparation of Sample10.1 Dry t
20、he sample to constant weight at 110 6 5Candstore in an airtight container. Obtain the sample from a largersample of the material to be tested by the use of a riffle or asample splitter in accordance with Practice D 3176,orbythemethod of quartering. The sample for sieve analysis shall havea weight of
21、 100 to 150 g.10.2 Where limestone contains clay, some agglomeration offine particles may occur. The agglomerates must be broken byrolling the dry sample with a hard rubber roller on a hardrubber mat or by some equally effective means that does notresult in crushing the limestone.11. Procedure11.1 S
22、ieve analysis shall be conducted using the proceduresin Test Methods C110. Sieve the sample through No. 8(2.36-mm) and No. 60 (250-m) sieves. Determine the weightof liming material passing each sieve on a scale or balancesensitive to at least 0.1 g. Calculate the amount of limingmaterial passing the
23、 sieves to the nearest whole percentage ofthe total weight of the dry sample.12. Report12.1 Report the following results for agricultural limingmaterials:12.1.1 Percentage Calcium Carbonate EquivalentThepercentage calcium carbonate equivalent (C.C.E.) shall bereported on the as-received basis. Calcu
24、late as follows:C.C.E. as2received!512% moisture 4 100!# 3 C.C.E. oven2dry!(1)12.1.2 Percentage MoistureCalculate as follows:(2)Moisture, % 5Weight of sample as received!2oven2dry weightWeight of sample as received!3 10012.1.3 Percentage Calcium and MagnesiumThe percent-ages of elemental calcium and
25、 elemental magnesium on thebasis of the as-received sample.12.1.4 Sieve AnalysisThe amount of dried sample passingthe No. 8 (2.36-mm) and No. 60 (250-m) sieves as apercentage of the total weight of the dried sample with thefigures rounded to the nearest whole percentage point.13. Keywords13.1 agricu
26、ltural liming materials; agricultural limestone;calcium carbonate equivalent; hydrated lime; lime by-products;limestone; quicklime; slagC602072SUMMARY OF CHANGESCommittee C07 has identified the location of selected changes to this specification since the last issue,C 602 06a, that may impact the use
27、 of this specification. (Approved June 15, 2007)(1) Revised 11.1.Committee C07 has identified the location of selected changes to this specification since the last issue,C 602 06, that may impact the use of this specification. (Approved December 15, 2006)(1) Replaced outdated term “burnt lime” with
28、“quicklime”throughout.Committee C07 has identified the location of selected changes to this specification since the last issue,C 602 95a(2001), that may impact the use of this specification. (Approved July 1, 2006)(1) Revised 1.2.(2) Revised Section 8.ASTM International takes no position respecting
29、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 any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard
30、 is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International
31、Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This
32、 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) of 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).C602073
