1、Designation: D 7047 04Standard Test Method forMucilloid Content of Plantago Insularis (Ovata, Psyllium)Used as a Tackifiers1This standard is issued under the fixed designation D 7047; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、 the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 Quantitive test method to determine the mucilloid con-tent of plantago insularis (Ovata, Psyllium) used
3、as a tackifier.1.2 The purpose of this test method is to provide a means ofevaluating the amount of mucilloid in a plantago insularis(Ovata, Psyllium) tackifier.1.3 The values stated in SI units are to be regarded as thestandard. The values in parenthesis are provided for informa-tion only.1.4 This
4、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. Terminology2.1 Defini
5、tions:2.1.1 For common definitions of terms in this standard referto Terminology D 635.2.1.2 tackifier, nin erosion control, a substance by whichits characteristics are used for bonding various types ofmaterials and/or soil together.3. Summary of Test Method3.1 Product specimen is taken and weighed,
6、 saturated andmeasured. The mucilloid content is expressed as a percent.4. Significance and Use4.1 The meaning of the test is related to the manufacturingand end use of the material, to determine characteristics ofproducts.5. Apparatus5.1 Electronic Gram Scale or Balance Scale, minimumaccuracy 0.000
7、 gms.5.2 Graduated 50.0 mL Glass Cylinder, with ground glassstopper.5.3 Weighting Boat.5.4 60 Minute Timer, graduated in one minute intervals.6. Sampling, Test Specimens, and Test Units6.1 Prepare specimen by separating 3.0 g of plantagoinsularis (Ovata, Psyllium) used as a tackifier from an undam-a
8、ged bag by taking13 from the top of the bag,13 from themiddle of the bag and13 from the bottom of the bag.7. Procedure7.1 Weigh weighting boat and place 1.0 g of the plantagoinsularis (Ovata, Psyllium) used as a tackifier specimen in theweighting boat.7.2 Transfer the sample in the weighting boat qu
9、antitativelyto the graduated cylinder.7.3 Add 20 mls tap water to the cylinder then close cylinderwith glass stopper.7.4 Shake the cylinder vigorously for 1 min.7.5 Set the timer for 60 min and start it, shake the cylindervigorously for 1 min when the timer indicates the minuteselapsed for the proce
10、dure has reached 9, 19, 29, 39, 49, and 59.7.6 After shaking the cylinder for the final time, allow thecylinder to stand for 23 h.7.7 Record to the nearest ml the column which is asuspended solid.8. Calculation or Interpretation of Results8.1 Calculate the percentage mucilloid as follows:Mucilloid C
11、ontent % 5 S/W 3 100 (1)where:S = mls of the suspended solid, andW = 20 mls of tap water.9. Report9.1 Report the equation as a percentage.10. Precision and Bias10.1 PrecisionIt is not possible to specify the precision ofthe procedure in D 7047 for mucilloid content of plantagoinsularis (Ovata, Psyll
12、ium) used as a tackifier because nomaterial having an accepted reference value is available.1This test method is under the jurisdiction of ASTM Committee D18 on Soil andRock and is the direct responsibility of Subcommittee D18.25 on Erosion andSediment Control Technology.Current edition approved May
13、 1, 2004. Published June 2004.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.10.2 BiasThere is no accepted reference value for this testmethod, therefore, bias cannot be determined.11. Keywords11.1 mucilloid; muciloid; ovata; planta
14、go insularis; psyl-lium; tackifierASTM International takes no position respecting 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 risko
15、f 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 years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this
16、standard or for additional standardsand should be addressed to ASTM International 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 yo
17、ur 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 19428-2959,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).D7047042
