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^I AMERICAN SOCIETY FOR TESTING AND IMATEMALS 1916 Race St.. Philadelphi2, Pa- 19103 ►-I dc;r.:sred !rm rrVf'-1hced ;y!•. 3-r,. J ASTN.1 S:Ardar-'s, Standard Method f or ` THIN -WALLED TUBE SAIIPLING OF SOILS, t ASTM Designation: D 1587 — 67 This Standard of the American Society for Testing and tiSaterials is issued under the fixed designation D 1587; the number immediately following the designa- tion indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. 1. Scope 1.1 This method describes a procedure for using a thin -walled metal tube to re- cover relatively undisturbed soil samples suitable for laboratory tests. It is in- tended as a guide to more complete speci- fications to meet the needs of a particular job. 1.2 There are, in general, two types of samplers that use thin -walled tubes for sampling, namely, open -tube samplers, and piston samplers? In general, piston samplers are better and. can be used in al- most all soils. Since the thin -walled tube requirements are the same for both types of samplers, the method described applies equally to both. 2. Apparatus 2,1 Drilling Equipment —Any drilling equipment may be used that provides a reasonably clean hole before insertion of the thin -galled tube; that does not dis- turb the soil to be sampled, and that can effect continuous and rapid penetration of the tube into the sampled soil. 2.2 Thin -ladled Tubes —Thin -walled tubes 2 to 5 in. (50.8 to 127 mm) in out- side diameter and made of any materials Under the standardization procedure of the Society, this method is under the jurisdiction of the AST\I Committee D-18 on Soil and Rock for Engineering Purposes. A. list of members may be found in the ASTM Year Book. Current edition issued Oct. 20, 1967. Orig- inally issued 1958. Replaces D 1587 - 63 T. Hvorslev- %I. J., Sur/ace Exploration and Sampling of Sgils for CivU Engineering Purpoace, The Engineering Foundation, 345 East 47th St., Now York, IN. Y. 10017. h as Specified In Method as ' Oi-Q. L f dio (rnly) Inside Clearance Ratio m oe mounting Holes Now 1—Mi3imum of two mounting holes on opposite sides for 2 to 334 iaa. sampler. Nam2-Minimum of four rr-ounting holes spaced at 90 deg for samplers 4 in. and larger. NoTz 3—Tube held with hardened screws. TABLE OF METRIC EQUIVALENTS. 6.77 12.7 1.27 1 25.4 2.54 5.08 3),4 ! I 8.69 4 i 10.18 FIG. 1—Thin-Walled Tube for Sampling• having adequate strength and resistance to corrosion will be satisfactory (Fig. 1). Adequate resistance to corrosion can be provided by a suitable coating. Sizes other than these rr ty be used, if specified. 2,2.1 Tubes shall be of such a length that between five and ten times the diameter is available for penetration into sands and between ten and fifteen diam- eters is available for penetration into clays. T-tbes shall be round and smooth, without bumps, dents, or scratches. They sha11 be clean, and free from rust and dirt. Seamless or welded tubes are permissible, but welds must not project at the sears• The cutting edge shall be machined as shown in Fig. 1 and shall be free from TABLE 1--SUITABLE THI`-WALLED STEEL SAMPLE TUBES-6 Outside diameter: in .............. 2 3 S mm............ 50.8 76.2 127 Wall thickness: Bwg--......... 18 16 11 in .............. 0.049 0.065 0.120 mm............ 1.24 1.65 3.05 Tube length: bL............. 36 36 54 m „ ,---.. . 0.91 0.91 1.45 Clearance ratio, percent...... 1 1 1 "'The three diameters recommended in Table 1 are indicated for purposes of standardi- zation. and are not intended to indicate that sampling tubes of intermediate or larger di3-ne- tem are not acceptable. Lengths of tubes shown are illustrative. Proper lengths to be devrmired as suited to field conditions. 1.69 1