1、Designation: C602 12Standard Specification forAgricultural Liming Materials1This standard is issued under the fixed designation C602; 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 parenthese
2、s 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 Department of Defense.1. Scope*1.1 This specification covers agricultural liming materials,such as quicklime
3、 (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 estab
4、lish 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, Packaging,an
5、d Marking of Lime and Limestone ProductsC110 Test Methods for Physical Testing of Quicklime,Hydrated Lime, and LimestoneC125 Terminology Relating to Concrete and Concrete Ag-gregatesC1271 Test Method for X-ray Spectrometric Analysis ofLime and LimestoneC1301 Test Method for Major and Trace Elements
6、in Lime-stone and Lime by Inductively Coupled Plasma-AtomicEmission Spectroscopy (ICP) and Atomic Absorption(AA)D3176 Practice for Ultimate Analysis of Coal and CokeE11 Specification for Woven Wire Test Sieve Cloth and TestSieves3. Terminology3.1 Definitions:3.1.1 agricultural liming materiala produ
7、ct whose cal-cium and magnesium compounds are capable of neutralizingsoil acidity.3.1.2 air-cooled blast-furnace slag and granulated blast-furnace slag air-cooled blast-furnace slag and granulatedblast furnace slag as defined in Terminology C125.3.1.3 calcium carbonate equivalent (C.C.E.) the acid-n
8、eutralizing 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 carbonate equivalent (C.C.E.), as shown in Table 1.NOTE 1Marl and some by-prod
9、uct 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 used.5. Sieve Analysis Classifications for AgriculturalLimestone5.1 Agric
10、ultural 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 agricultural limestone isobtained by the normal crushing procedure and the pro
11、duct contains thefines of fracture. In some economic circumstances, coarser products areused. 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
12、a fineror coarser 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 sam
13、e as agriculturallimestone 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.1This specification is under the jurisdiction of ASTM Committee C07
14、 on Limeand is the direct responsibility of Subcommittee C07.02 on Specifications andGuidelines.Current edition approved Dec. 1, 2012. Published January 2013. Originallyapproved in 1967. Last previous edition approved in 2007 as C602 07. DOI:10.1520/C0602-12.2For referenced ASTM standards, visit the
15、 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Bar
16、r Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States17. Particle Size Requirements for Hydrated Lime andQuicklime7.1 Hydrated lime and quicklime for agricultural use shallbe classified in accordance with the minimum percentagespassing the No. 8 (2.36-mm) and No. 60 (250-m) si
17、eves, 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 proceduresspecified in Practice C50.9. Chemical Methods9.1 Reagent grade chemicals or equivalent and water purityshall be used as specified in Test Me
18、thods 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 parameters are to be determinedusing the methods as specified.9.3.1 Calcium carbonate equivalent by the method in C25and9.3.2 Total calcium and mag
19、nesiumdetermination can bemade either by methods in C25, C1271 or C1301.SIEVE ANALYSIS OF AGRICULTURAL LIMINGMATERIALS10. Preparation of Sample10.1 Dry the 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 th
20、e use of a riffle or asample splitter in accordance with Practice D3176,orbythemethod of quartering. The sample for sieve analysis shall havea weight of 100 to 150 g.10.2 Where limestone contains clay, some agglomeration offine particles may occur. The agglomerates must be broken byrolling the dry s
21、ample 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 Sieve 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. Determ
22、ine 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 sieves to the nearest whole percentage ofthe total weight of the dry sample.12. Report12.1 Report the following results for agricultural limingmate
23、rials:12.1.1 Percentage Calcium Carbonate EquivalentThepercentage calcium carbonate equivalent (C.C.E.) shall bereported on the as-received basis. Calculate as follows:C.C.E. as 2 received! 5 1 2 % moisture100!# 3C.C.E. oven2 dry! (1)12.1.2 Percentage MoistureCalculate as follows:Moisture, %5 (2)Wei
24、ght of sample as received! 2 oven 2 dry weightWeight of sample as received!310012.1.3 Percentage Calcium and MagnesiumThe percent-ages of elemental calcium and 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.
25、 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 agricultural liming materials; agricultural limestone;calcium carbonate equivalent; hydrated lime; lime by-products;limestone; quicklime; slagTABLE
26、 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 80Shells not less than 80TABLE 2 Classification for Agricultural LimestoneClassDesignationPassing No. 8(2.36-mm)S
27、ieve, min,percentPassing No. 60(250-m)Sieve, min,percentS 100 100T9975O95N9040E82C602 122SUMMARY OF CHANGESCommittee C07 has identified the location of selected changes to this specification since the last issue,C602 07, that may impact the use of this specification. (Approved December 1, 2012)(1) R
28、evised to include Test Methods C1271 and C1301 asalternatives to Test Methods C25 for determining the calciumand magnesium levels of agricultural liming materials.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this s
29、tandard. 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 is subject to revision at any time by the responsible technical committee and must be re
30、viewed 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 Headquarters. Your comments will receive careful consideration at a meeting of therespons
31、ible 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 standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West
32、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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).C602 123
