1、Designation: C706 02 (Reapproved 2008)1C706 13Standard Specification forLimestone for Animal Feed Use1This standard is issued under the fixed designation C706; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisi
2、on. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1 NOTEA units statement was added editorially as paragraph 1.2 and subsequent paragraphs were renumbered in De-cember 2008.1. Scope1.1 This s
3、pecification covers limestone supplied for use as a mineral supplement in animal feeds.NOTE 1The calcium needed for animal nutrition is customarily supplied by limestone. Such limestone must be sufficiently fine to blend with mixedfeeds and yet be free from excessive dusting.1.2 The values stated in
4、 SI units are to be regarded as standard. No other units of measurement are included in thisstandard.standard, except for sieve frames which are given in inch-pound units in accordance with Specification E11.1.3 This standard does not purport to address all of the safety concerns, if any, associated
5、 with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C25 Test Methods for Chemical Analysis of Limestone, Quicklime, an
6、d Hydrated LimeC50 Practice for Sampling, Sample Preparation, Packaging, and Marking of Lime and Limestone ProductsC51 Terminology Relating to Lime and Limestone (as used by the Industry)C110 Test Methods for Physical Testing of Quicklime, Hydrated Lime, and LimestoneC1271 Test Method for X-ray Spec
7、trometric Analysis of Lime and LimestoneC1301 Test Method for Major and Trace Elements in Limestone and Lime by Inductively Coupled Plasma-Atomic EmissionSpectroscopy (ICP) and Atomic Absorption (AA)E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves3. Terminology3.1 Definitions of ter
8、ms applying to this specification appear in Terminology C51.4. General Requirements4.1 The product must be suitable for animal feeding.5. Chemical Requirements5.1 Limestone, as identified on feed labels, shall conform to the chemical requirements given in Table 1.6. Physical Requirements6.1 Sieve an
9、alysis and other physical requirements shall be specified by the purchaser.7. Test Methods7.1 Chemical AnalysisUnless otherwise agreed upon between the purchaser and the manufacturer, the chemical analysis ofthe limestone shall be conducted in accordance with Test Methods C25, C1271, or C1301.1 This
10、 specification is under the jurisdiction of ASTM Committee C07 on Lime and is the direct responsibility of Subcommittee C07.02 on Specifications and Guidelines.Current edition approved Dec. 1, 2008Dec. 1, 2013. Published February 2009January 2014. Originally approved in 1972. Last previous edition a
11、pproved in 20022008 asC706 02.C706 02 (2008)1. DOI: 10.1520/C0706-02R08E01.10.1520/C0706-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Su
12、mmary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommen
13、ds that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States17.2 Particle Size
14、Unless otherwise agreed upon between the purchaser and the manufacturer, the sieve analysis of the materialshall be determined in accordance with Test Methods C110.7.2.1 ProcedureIf the entire sample is not to be dried, obtain lesser portions by riffling or quartering. Dry at between 115 to120 C to
15、a constant mass and cool to room temperature. Obtain a 90 to 120-g dry sample by riffling or quartering. If the materialtends to cake, break up the agglomerates with a soft rubber pestle. Quantitatively transfer the weighed sample to an 8-in. diameterstandard sieve or set of sieves (for example, Nos
16、. for example, 2.00 mm, 850 m, 425 m, 250 m, 180 m, and 150 m (Nos.10, 20, 40, 60, 80, and 100100) or other appropriate combination conforming to Specification E11). Conduct the sieve analysisin accordance with Test Methods C110.8. Sampling, Inspection, etc.8.1 The sampling, inspection, rejection, r
17、etesting, packaging, and marking shall be conducted in accordance with Methods C50.9. Keywords9.1 animal; feed; limestone; mineral; supplementASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of thi
18、s 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 reviewed every five yea
19、rs 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 theresponsible technical committ
20、ee, 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 Conshohocken, PA 19428
21、-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 stan
22、dard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 1 Chemical RequirementsLimestoneClasses(See C51)Calcium,min,percent(as CaCO3)Magnesium,max,percent(asMgCO3)Magnesium,min,percent(as MgCO3)Moisture,max,percentHigh Calcium 95 5 . 0.5Magnesian 60 35A 5 0.5Dolomitic 49 46A 3
23、5 0.5Ground Limestone 82 B B 0.5TABLE 1 Chemical RequirementsLimestoneClasses(See C51)Calcium,(as CaCO3)min, %Magnesium(as MgCO3),max, %Magnesium,(as MgCO3)min, %Moisture,max,%High Cal-cium95 5 . 0.5Magnesian 60 35A 5 0.5Dolomitic 49 46A 35 0.5GroundLimestone82 B B 0.5A The high magnesium content of these materials usually limits their use tospecial-purpose feeds.B As specified by the purchaser.C706 132
