Rex-DD-3 Hardness Testers (Hardness Testers) -- MeasureNOW Shopping Cart -- Testers Hardness Rex-DD-3

<H1>Rex-DD-3 Hardness Testers -- MeasureNOW Shopping Cart</H1> <STRIKE>$995.00</STRIKE> $945.00 -- Rex <table id="table1" bordercolor="#000080" cellspacing="0" cellpadding="0" width="100%" border="1"> <tbody> <tr> <td width="51%" colspan="2"><table id="table9" bordercolor="#000080" cellspacing="0" cellpadding="0" width="100%" border="1"> <tbody> <tr> <td align="center" bgcolor="#ece9d8">Order No.</td> <td align="center" bgcolor="#ece9d8">Description</td> </tr> <tr> <td align="center">DD-3</td> <td align="center">Complete Kit (Less Type OOO)</td> </tr> <tr> <td align="center">DD-3-A</td> <td align="center">Multi-Scale Durometer-Type A</td> </tr> <tr> <td align="center">DD-3-B</td> <td align="center">Multi-Scale Durometer-Type B</td> </tr> <tr> <td align="center">DD-3-C</td> <td align="center">Multi-Scale Durometer-Type C</td> </tr> <tr> <td align="center">DD-3-D</td> <td align="center">Multi-Scale Durometer-Type D</td> </tr> <tr> <td align="center">DD-3-DO</td> <td align="center">Multi-Scale Durometer-Type DO</td> </tr> <tr> <td align="center">DD-3-O</td> <td align="center">Multi-Scale Durometer-Type O</td> </tr> <tr> <td align="center">DD-3-OO</td> <td align="center">Multi-Scale Durometer-Type OO</td> </tr> <tr> <td align="center">DD-3-OOO</td> <td align="center">Multi-Scale Durometer-Type OOO</td> </tr> <tr> <td align="center">DD-3M</td> <td align="center">Multi-Scale Durometer-Type M</td> </tr> <tr> <td align="center" bgcolor="#ece9d8" colspan="2">Accessories</td> </tr> <tr> <td align="center">DD-3-BB</td> <td align="center">Barrel Adapter Type B</td> </tr> <tr> <td align="center">DD-3-CB</td> <td align="center">Barrel Adapter Type C</td> </tr> <tr> <td align="center">DD-3-DB</td> <td align="center">Barrel Adapter Type D</td> </tr> <tr> <td align="center">DD-3-DOB</td> <td align="center">Barrel Adapter Type DO</td> </tr> <tr> <td align="center">DD-3-OB</td> <td align="center">Barrel Adapter Type O</td> </tr> <tr> <td align="center">DD-3-OOB</td> <td align="center"> Barrel Adapter Type OO</td> </tr> <tr> <td align="center">DD-3-OOOB</td> <td align="center">Barrel Adapter Type OOO</td> </tr> </tbody> </table> </td> </tr> </tbody> </table>  <table cellspacing="0" cellpadding="0" width="100%" border="0"> <tbody> <tr> <td> <img height="208" hspace="5" src="https://www.nexternal.com/bcmac/images/multidigital.gif" width="203" vspace="5" border="0" /> </td> <td> <img height="229" src="https://www.nexternal.com/bcmac/images/DD3_Big.gif" width="105" border="0" /> </td> </tr> </tbody> </table>For the technician that must perform hardness tests on various types of non-metallic materials, Rex Gauge Company now introduces the Multi-Scale durometer test kit. The Multi-Scale base kit consists of a Rex A durometer, and your choice of one of more color-coded barrel adapters for D, B, C, DO, O, OO or OOO scales (see chart for applications). Changing scales is accomplished by unscrewing one barrel and replacing it with another - no supplementary calibration or adjustments are necessary. A test block, calibrated to the selected scale is also included. The block allows the user to perform quick functional checks on the instrument. The indicator and barrels are made in the USA, and are calibrated to the ASTM-D2240 standard for durometer hardness testers. Features: <ul> <li>Color-coded barrel adapters for D, B, C, DO, O, OO or OOO scales are sold separately. </li> </ul> Technical Information: <table class="content" id="table7" cellspacing="0" cellpadding="0" border="0"> <tbody> <tr> <td>Rex Durometers are known World-Wide for their quality, dependability and accuracy. Except where noted, all gauges comply with ASTM D2240. Most gauges are available in A, D, B, C, O, OO, OOO and M. All are in stock and ready for immediate delivery. Custom designed hardness/softness gauges and operating stands, along with many accessories are available. GUARANTEE: All Rex Durometers and accessories are guaranteed for a period of one (1) year against defective workmanship and/or material. This Guarantee does not apply to products that are mishandled, misused, etched, stamped, or otherwise marked or damaged. The instrument will be repaired or replaced (at our option) without charge by Rex Gauge Company </td> </tr> </tbody> </table> <table id="table6" bordercolor="#000080" cellspacing="0" cellpadding="0" width="100%" bgcolor="#ffffff" border="1"> <tbody> <tr valign="top" align="left"> <td valign="top" align="center">DUROMETER TYPES </td> <td valign="top" align="center">APPLICATIONS </td> <td valign="top" align="center">INDENTOR SHAPE </td> <td valign="top" align="center">MAIN SPRING </td> </tr> <tr valign="top" align="left"> <td valign="top" align="left">TYPE A (ASTM D2240)</td> <td valign="top" align="left">Soft rubber, plastics, and elastomers, printer's rolls. </td> <td valign="top" align="left"><img height="26" hspace="5" src="https://www.nexternal.com/bcmac/images/a.jpg" width="27" align="right" border="0" /> Flat Cone Point 35° Included Angle </td> <td valign="top" align="left">822 GM 1.81 LB. </td> </tr> <tr> <td valign="top" align="left">TYPE D (ASTM D2240)</td> <td valign="top" align="left">Hard rubber and plastics such as thermo plastics, flooring and bowling balls. </td> <td valign="top" align="left"><img height="31" hspace="5" src="https://www.nexternal.com/bcmac/images/d.jpg" width="28" align="right" border="0" /> Sharp Cone Point 30° Included Angle </td> <td valign="top" align="left">4536 GM 10.0 LB. </td> </tr> <tr> <td valign="top" align="left">TYPE B (ASTM D2240)</td> <td valign="top" align="left">Harder elastomers and plastics. Paper and fibrous materials, Use above 93 Duro A. </td> <td valign="top" align="left"><img height="31" hspace="5" src="https://www.nexternal.com/bcmac/images/d.jpg" width="28" align="right" border="0" /> Sharp Cone Point 30° Included Angle </td> <td valign="top" align="left">822 GM 1.81 LB </td> </tr> <tr> <td valign="top" align="left">TYPE C (ASTM D2240)</td> <td valign="top" align="left">Medium hard elastomers and plastics. Also useful to avoid surface marks. </td> <td valign="top" align="left"><img height="25" hspace="5" src="https://www.nexternal.com/bcmac/images/c.jpg" width="28" align="right" border="0" /> Flat Cone Point 35° Included Angle </td> <td valign="top" align="left">4536 GM 10.0 LB </td> </tr> <tr> <td valign="top" align="left">TYPE DO (ASTM D2240)</td> <td valign="top" align="left">Dense granular material, textile windings. </td> <td valign="top" align="left"><img height="31" hspace="5" src="https://www.nexternal.com/bcmac/images/o.jpg" width="33" align="right" border="0" /> 3/32" Spherical </td> <td valign="top" align="left">4536 GM 10.0 LB </td> </tr> <tr> <td valign="top" align="left">TYPE O (ASTM D2240)</td> <td valign="top" align="left">Very soft elastomers, textile windings, soft granular materials. Use below 20 Duro A. </td> <td valign="top" align="left"><img height="31" hspace="5" src="https://www.nexternal.com/bcmac/images/o.jpg" width="33" align="right" border="0" /> 3/32" Spherical </td> <td valign="top" align="left">822 GM 1.81 LB </td> </tr> <tr> <td valign="top" align="left">TYPE OO (ASTM D2240)</td> <td valign="top" align="left">Light foams, sponge rubber gels, animal tissue. </td> <td valign="top" align="left"><img height="31" hspace="5" src="https://www.nexternal.com/bcmac/images/o.jpg" width="33" align="right" border="0" /> 3/32" Spherical </td> <td valign="top" align="left"><dl compact="true"><dt nowrap="true">113 GM </dt></dl></td> </tr> <tr> <td valign="top" align="left">TYPE OOO (ASTM D2240)</td> <td valign="top" align="left">Ultra soft gels and sponge rubber. </td> <td valign="top" align="left"><img height="39" hspace="5" src="https://www.nexternal.com/bcmac/images/ooo.jpg" width="49" align="right" border="0" /> 1/2" Spherical </td> <td valign="top" align="left"><dl compact="true"><dt nowrap="true">113 GM </dt></dl></td> </tr> <tr> <td valign="top" align="left">TYPE M (ASTM D2240)</td> <td valign="top" align="left">Materials as thin as .050" </td> <td valign="top" align="left"><img height="31" hspace="5" src="https://www.nexternal.com/bcmac/images/d.jpg" width="28" align="right" border="0" /> Sharp Cone Point 30° Included Angle </td> <td valign="top" align="left"> </td> </tr> </tbody> </table><img height="200" alt="Comparison Chart for Durometer Readings across different durometer types" src="https://www.nexternal.com/bcmac/images/compchart.gif" width="468" vspace="10" border="0" /> <table class="content" id="table8" cellspacing="0" cellpadding="0" border="0"> <tbody> <tr> <td valign="top" align="left" colspan="2">The Durometer is the international standard for the hardness measurement of rubber, plastic and other non-metallic materials. Durometers are described in the American Society for Testing and Material specification ASTM D2240, which is the recognized specification for the instrument and test procedures. There are a number of brands of durometers, all of which must conform to the same ASTM specifications if they are to be known as genuine Durometers. Sometimes a Durometer Scale may be referred to by its' brand name. The "A" scale is the Durometer A scale (or type A) and all brands will, or should, give interchangeable readings. <h2>Hardness and other Related Characteristics</h2> The Durometer Hardness test is nondestructive and the small instrument size, with no need for elaborate specimen preparation, makes it an ideal method for checking materials under any condition with accuracy and reliability. All durometers have a spring loaded indentor which applies an indentation load to the specimen, thus sensing the "hardness", which can be related to other material characteristics. Use of a Durometer provides a quick yet accurate way to indirectly measure other material properties, such as tensile modulus, resilience, plasticity, compression resistance, and elasticity. It is relatively simple to determine the correlation between Durometer hardness and other properties for a given material. A set of specimens of the material (or family of materials) is first tested on a standard tester for property desired, eg. tensile strength. A set of Durometer readings for the same samples is then observed and noted. Thereafter, only the Durometer hardness need be observed on similar material specimens to obtain a reasonable measure of the other property. Some properties correlate exactly, while others are sufficiently close for practical use as an initial quality control or materials engineering test. <h2>Calibration, Checking, Etc.</h2> "My Durometer rests below zero, is it out of calibration?"-This is a common question asked by many first-time durometer users. The answer to the question, in most cases, is no. Certain Rex gauges and models rest at roughly six points below zero: this is because the gauges are made in accordance with ASTM D2240, which states that some Durometers have a preload of 56g at a zero reading. Therefore, a Durometer giving a less-than-zero reading at rest is not out of calibration. To make a simple calibration check, take a reading on smooth glass or steel (WARNING: THIS IS NOT RECOMMENDED FOR TYPE D DUROMETERS-THE GAUGE MAY BE SEVERELY DAMAGED). The gauge should read within ½ point of 100. In a Rex Durometer, the unique built-in linearity assures the gauge is in proper calibration throughout the entire scale. Should a Rex Durometer not give the above reading on a smooth, hard surface, it may be assumed that the Durometer has been damaged, and it should be sent to Rex for inspection and/or repair. <h2>Testing Procedures</h2> Because Durometers measure hardness by relating the penetration of an indentor into a specimen, and because the indentor travel may reach .100", it follows that a specimen must be of sufficient thickness to ensure a proper, sensitive test. Generally, samples to be tested should not be less than 1/4" (6mm) thick. Exceptions may be made for harder materials because the indentor is at less than half stroke. For example, a material that checks near 80 durometer points can be as thin as .118" (3mm), because the indentor will only extend out .020" during testing. What must be avoided is a specimen so thin that the indentor may sense the hardness of the underlying surface. This will give a false reading due to the "anvil effect". The Rex type M durometer can be used when checking materials thinner than ¼" (as thin as .050"). When testing flat specimens too thin to give accurate readings, the specimens may be stacked to provide the required thickness. In addition to sufficient thickness for testing, sufficient material around the sides of the indentor must be present. With soft materials, a minimum 1/4" (6mm) is recommended. Hence, all Rex Durometers are made with a 1/2" diameter foot which provides the necessary area of contact. Rex offers an extended foot useful for testing very soft materials, or for enhancing repeatability in a lab-type environment.<script type="text/javascript"> </script> </td> </tr> </tbody> </table> <LI>Order Number: DD-3; DD-3-A; DD-3-B; DD-3-C; DD-3-D; DD-3-DO; DD-3-O; DD-3-OO; DD-3-OOO; DD-3M; DD-3-BB; DD-3-CB; DD-3-DB; DD-3-DOB; DD-3-OB; DD-3-OOB; DD-3-OOOB Other products in the category <A HREF="http://www.nexternal.com/bcmac/Category38" TITLE="Hardness Testers">Hardness Testers</A>: <LI><A HREF=http://www.nexternal.com/bcmac/Product584 TITLE="ARK-600 Hardness Tester">ARK-600 Hardness Tester</A> -- Mitutoyo <LI><A HREF=http://www.nexternal.com/bcmac/Product585 TITLE="New Rockwell & Rockwell Superficial">New Rockwell & Rockwell Superficial</A> -- Mitutoyo <LI><A HREF=http://www.nexternal.com/bcmac/Product380 TITLE="Sun-Tec Corporation CR-8">Sun-Tec Corporation CR-8</A> -- Sun-Tec Corporation <LI><A HREF=http://www.nexternal.com/bcmac/Product377 TITLE="Sun-Tec Corporation AA-01-CR Series">Sun-Tec Corporation AA-01-CR Series</A> -- Sun-Tec Corporation <LI><A HREF=http://www.nexternal.com/bcmac/Product382 TITLE="Sun-Tec Corporation DTLC-3000">Sun-Tec Corporation DTLC-3000</A> -- Sun-Tec Corporation <LI><A HREF=http://www.nexternal.com/bcmac/Product385 TITLE="Starrett EDP 67754">Starrett EDP 67754</A> -- Starrett <LI><A HREF=http://www.nexternal.com/bcmac/Product387 TITLE="Mitutoyo HR-521">Mitutoyo HR-521</A> -- Mitutoyo <LI><A HREF=http://www.nexternal.com/bcmac/Product388 TITLE="Mitutoyo 800 Series">Mitutoyo 800 Series</A> -- Mitutoyo <LI><A HREF=http://www.nexternal.com/bcmac/Product390 TITLE="Mitutoyo 810 201 A">Mitutoyo 810 201 A</A> -- Mitutoyo <LI><A HREF=http://www.nexternal.com/bcmac/Product374 TITLE="Manual Micro Hardness Tester">Manual Micro Hardness Tester</A> <LI><A HREF=http://www.nexternal.com/bcmac/Product381 TITLE="Sun-Tec Corporation CV Series">Sun-Tec Corporation CV Series</A> -- Sun-Tec Corporation <LI><A HREF=http://www.nexternal.com/bcmac/Product378 TITLE="Sun-Tec Corporation CDR-95102">Sun-Tec Corporation CDR-95102</A> -- Sun-Tec Corporation <LI><A HREF=http://www.nexternal.com/bcmac/Product379 TITLE="Sun-Tec Corporation CPT Series">Sun-Tec Corporation CPT Series</A> -- Sun-Tec Corporation <LI><A HREF=http://www.nexternal.com/bcmac/Product383 TITLE="NewAge Portable Hardness Tester">NewAge Portable Hardness Tester</A> -- NewAge <LI><A HREF=http://www.nexternal.com/bcmac/Product280 TITLE="Rex2000 Durometer">Rex2000 Durometer</A> -- Rex <LI><A HREF=http://www.nexternal.com/bcmac/Product542 TITLE="Rex2000 Hardness Testers">Rex2000 Hardness Testers</A> -- Rex <LI><A HREF=http://www.nexternal.com/bcmac/Product281 TITLE="Rex2100 Durometer">Rex2100 Durometer</A> -- Rex <LI><A HREF=http://www.nexternal.com/bcmac/Product283 TITLE="Rex-DD-3 Durometer">Rex-DD-3 Durometer</A> -- Rex <LI><A HREF=http://www.nexternal.com/bcmac/Product286 TITLE="Rex Res-H1000 Durometer">Rex Res-H1000 Durometer</A> -- Rex <LI><A HREF=http://www.nexternal.com/bcmac/Product287 TITLE="Rex1500 Durometer">Rex1500 Durometer</A> -- Rex <LI><A HREF=http://www.nexternal.com/bcmac/Product289 TITLE="Rex1600 Durometer">Rex1600 Durometer</A> -- Rex <LI><A HREF=http://www.nexternal.com/bcmac/Product290 TITLE="Rex1700 Durometer">Rex1700 Durometer</A> -- Rex <LI><A HREF=http://www.nexternal.com/bcmac/Product375 TITLE="Sun-Tec Corporation SBS Microscope Brinell">Sun-Tec Corporation SBS Microscope Brinell</A> -- Sun-Tec Corporation <LI><A HREF=http://www.nexternal.com/bcmac/Product376 TITLE="Sun-Tec Corporation King Scan III">Sun-Tec Corporation King Scan III</A> -- Sun-Tec Corporation <LI><A HREF=http://www.nexternal.com/bcmac/Product291 TITLE="Rex Kits- Complete O-Ring Hardness Kit">Rex Kits- Complete O-Ring Hardness Kit</A> -- Rex <A HREF="http://www.nexternal.com/bcmac" TITLE="MeasureNOW Products">MeasureNOW Products</A> <A HREF="http://www.measurenow.com">MeasureNOW</A> MeasureNOW <A HREF="http://www.nexternal.com" TITLE="shopping cart">shopping cart</A> powered by Nexternal

drill it, grind it, mill it, turn it . . .

. . . you still have to measure it.

HOME

	For Assistance Contact: The NOW Team Phone: 800-875-4243 Fax: 314-993-0405 Email: service@measurenow.com Join Our Mailing List
	Need Tooling?