Shore d hardness is a standardized test consisting in measuring the depth of penetration of a specific indenter. Shore d hardness astm d2240 80 water absorption 2hr boil astm d570 0. The tester is featured with wide measuring range from 0 to 100. These ranges are offered to mills based on the following parameters. Astm d2240 15e1 standard test method for rubber property. Find the most uptodate version of astm d2240 at engineering360. It measures hardness values in pointsthat range from 0 to 100. The two that are used for rubber roller industry are type a and type d.
Referenced documents purchase separately the documents listed below are referenced within the subject standard but are not provided as part of the standard astm standards. Shore a vs shore d hardness 165 wambold road, harleysville, pa 19438 18005236688 2157236051 fax 2157992518 shore hardness astm d2240 shore hardness is a relative measure of exactly what the term implies hardness. For specification purposes, it is recommended that test method d785 be used for materials other than those described in 1. Durometer shore a durometer, shore d durometer, asker. Standard test method for rubber propertydurometer hardness.
Astm d2240 test material testing micom laboratories. Shore a hardness of a rubber cot and its restrictions in measuring the hardness value under mill conditions. Astm d2240 allows for a measurement of the initial hardness, or the indentation hardness, after a given period of time. The standard hammer japanese industrial standard jis 7727 1993, type d has a mass of about 36. Durometer hardness is used to determine the relative hardness of soft materials, usually plastic or rubber. Ptcs shore d scale durometer gauges are for determining indentation hardness of epoxy, acrylic, fiberglass, hard rubber, vinyl, cellulose acetate, pipeline coating and other similar materials. No simple relationship exists between indentation hardness determined by this test method and any fundamental property of the material tested. The ad100c type c shore durometer, astm d2240 is the genesis of years of experience offering high quality durometers to discriminating users. The rex dd4 digital durometer is the successor to the popular rex dd3. Shore d tester 4 shore hardness testing shore durometers ths210 features digital durometer for shore d hardness testing pocket size model with integrated probe testing hard. Featuring an 18mm footer that offers high stability and conforms to all international standards, the ad100 is the ideal durometer for a wide range of shore hardness measuring applications. Equipped with a drag indicator, which holds the highest measured result. Shore hardness gauge din 53505 iso 868 astm d2240 tqc sheen. Shore hardness generally shore hardness of a rubber cot is measured by using an instrument called durometer and the value is expressed in a scale cots are available in wide shore hardness ranging from 63 to 90 shore.
Highend durometers with the highest quality and accuracy on the market din iso 7619, din en iso 868, nf en iso 868, astm d 2240 din 53505 hpe ii series durometers are highend hardness testers for. Active standard astm d2240 developed by subcommittee. We carry durometers that meet or exceed astm d 2240, din, iso, and jis standards. This shore d hardness meter is suitable for measuring high hardness things, such as ebonite, hardresin, acrylic, glass, printing plate and fiber. Durometer shore hardness test manual ld0550, ld0551. Semirigid plastics can also be measured on the high end of the shore a scale.
Astm d2240 05 standard test method for rubber property. Two durometer models are available for different hardness ranges shore a and shore d. For specification purposes, it is recommended that test. American society for testing and materials astm d 2240 procedure readings are reproducible with reasonable consistency. Specifications view larger image the asker durometer type d is in widespread industry use and described in many domestic and international standards. Shore d hardness test durometer scale hardness of plastic. The shore hardness gauge is a reliable instrument for measuring the impression hardness of soft materials such as coatings, plastics and rubber. Micom offers astm d2240 shore hardness testing as part of its plastics testing services astm d2240 u ses and factors to be considered. The ad100 displays hardness readings on an easytoread analog scale calibrated in 0 to 100 shore units. Featuring an 18mm footer that offers high stability and. D618 practice for conditioning plastics for testing. Micom offers astm d2240 shore hardness testing as part of its plastics testing services astm d2240 u ses and factors to be. Automatic motorized durometer digitest ii qualitest. Durometers with maximum reading indicators used to determine maximum hardness values of a material may yield lower hardness when the maximum indicator is used.
Durable metal cases are rugged enough for a production environment. Feb 15, 2012 used to measure the hardness of rubber and plastics according astm d2240, din 53505, iso 868 and iso 7619. Shore hardness gauge din 53505 iso 868 astm d2240 tqc. The tester is featured with wide measuring range from 0 to 100 hd, and it also has data hold function and zero button for self calibration. Durometers with maximum reading indicators used to.
The test measures the penetration of a specified indentor into the material under specified conditions of force and time. The durometer uses many different scales for different materials and hardness. With its impressive list of features, the dd4 is truly stateoftheart, and is the ideal instrument for lab use. The shore d hardness scale measures the hardness of hard rubbers. The tqc shore hardness gauge is a reliable instrument for measuring the impression hardness of soft materials such as coatings, plastics and rubber. Astm d2240durometer hardness durometer hardness testing measures the hardness of rubber elastomers and plastic materials. Used to measure the hardness of rubber and plastics according astm d2240, din 53505, iso 868 and iso 7619. Cots are available in wide shore hardness ranging from 63 to 90 shore. The durometer uses many different scales for different materials and. A written calibration report for any durometer covered by current astm d2440 or astm f1957 specifications is available from ptc metrology.
Shore a scale is applicable for rubber and soft plastics whereas shore d is for. The most widely used hardness measuring instrument is called the. Shore a vs shore d hardness 165 wambold road, harleysville, pa 19438 18005236688 2157236051 fax 2157992518 shore hardness astm d2240 shore hardness is a relative. D 2240 03 standard test method for rubber propertydurometer hardness 1 this standard is issued under the. Gh d 2240 exists between indentation hardness determined by this test method snd any fundamental property of the material tested. We offer asker durometers as well as shore a durometers, shore d, and the rest of the shore scale.
Business coating laboratories, paint production standards astm d2240, din 53505, iso 868. Handheld electronic instrument measures the indentation hardness of nonmetallic materials. The shore a hardness scale measures the hardness of flexible mold rubbers that range in hardness from very soft and flexible, to medium and somewhat flexible, to hard with almost no flexibility at all. Shore, apparatus for measuring the hardness of materials, issued 19300708. The ex durometer is designed for measuring the hardness of various. A scale consists of 7 colorcoded rubber test blocks of various type a durometer hardness values ranging from 30 durometer to 90 durometer, and are housed in a convenient, rigid, customfit. For specification purposes itis recommended that astm.
Astm d2240 standard test method for rubber property. The test methods employed vary greatly from a field applied test to a very controlled laboratory test. Medium to extra hard materials such as hard rubber, epoxies, hard plastics, pvc, acrylic, etc. A schematic diagram of the apparatus is shown in fig. Shore a scale is applicable for rubber and soft plastics whereas shore d is for hard.
The hardness value is determined by the penetration of the durometer indenter foot into the sample. The ex durometer is designed for measuring the hardness of various types of rubbers and plastics. D scale consists of 3 test blocks ranging from 20 to 80 durometer. A scale consists of 7 colorcoded rubber test blocks of various type a durometer hardness values ranging from 30 durometer to 90 durometer, and are housed in a convenient, rigid, customfit protective box. The most widely used hardness measuring instrument is called the durometer. Test methods used to measure shore d hardness are astm d2240 and iso 868. Din 53505, astm d 2240, iso 868, iso 7619 din 53505, astm d 2240, iso 868, iso 7619 din 53505, astm d 2240, iso 868, iso 7619 dimensions l x w x h. D785 test method for rockwell hardness of plastics and electrical insulating. Micom offers astm d2240 shore hardness testing as part of its plastics testing services. Hardness shore a 80 durometer astm d2240 tensile strength 1500 psi astm d412 elongation 150% astm d412 cold temperature 40. An astm designation number identifies a unique version of an astm standard. Standard test method for rubber propertydurometer hardness1. At, we strive to provide durometer hardness testers that will work, no matter what your testing environment is or what material you need to measure.
Apr 19, 20 shore a vs shore d hardness 165 wambold road, harleysville, pa 19438 18005236688 2157236051 fax 2157992518 shore hardness astm d2240 shore hardness is a relative measure of exactly what the term implies hardness. Durometer shore a durometer, shore d durometer, asker durometer. It is useful for the hardness determination of materials such as rigid rubber and plastics. This test method is widely used for composites and polymer testing. Shore a and d, delivery includes a simple test block.
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