ASTM D1415 PDF

This standard is issued under the fixed designation D ; the number 1 This test method is under the jurisdiction of ASTM Committee D on Rubber. ASTM D Standard Test Method for Rubber Property—International Hardness. Buy ASTM D – 18 Standard Test Method for Rubber Property—International Hardness from SAI Global.

Author: Meztibar Meztikree
Country: Dominica
Language: English (Spanish)
Genre: Travel
Published (Last): 15 April 2009
Pages: 286
PDF File Size: 12.27 Mb
ePub File Size: 19.96 Mb
ISBN: 700-9-50644-624-3
Downloads: 94676
Price: Free* [*Free Regsitration Required]
Uploader: Gak

In this case which test should one believe? Are you an Engineering professional? Download Now Defense manufacturing is all about project manufacturing and project accounting.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Historical Version s – view previous versions of standard. Digital Transformation may be defined in a number of different ways by analysts or enterprise software vendors. Promoting, selling, recruiting, coursework and thesis posting is forbidden.

This curve is defined as follows:. Click Here to join Eng-Tips and talk with ast members! Link to Active This link will always route to the current Active version of the standard. First off, thank you for your input! The measured penetration is converted into IRHD, the scale of degrees being d145 chosen that 0 represents a material having an elastic modulus of zero, and represents a material of infinite elastic modulus. My understanding is that the difference can be larger for a ast rubber such as NBR than for a more resilient rubber such as NR, but again not as high as reported here.

  BEGINNERS GUIDE TO DARKBASIC GAME PROGRAMMING PDF

Join your peers on the Internet’s largest technical engineering professional community. It’s easy to join and it’s free. Readings may not be comparable when testing curved or irregularly shaped test specimens. Thank you for helping keep Eng-Tips Forums free from inappropriate posts.

The hardness is obtained by the difference in penetration depth of a specified dimension ball under two conditions of contact with the rubber: Close this window and log in.

Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

ASTM D – IRHD HARDNESS

In my experience, admittedly with the normal test, the difference ought not to exceed 5 units or so even when we recognise the underlying difference in durometer and International Rubber Hardness tests. After reading the ASTM sections the only differences I can come up with are the time dependency and the actual test apparatus. Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is d4115.

By joining you are opting in to receive e-mail. Cobbold Axtm H W Wallace. Download Now White Paper: Are the results even comparable in the same scale?

D Type M micro-hardness testing First off, thank you for your input! Thanks Again Pat RE: Historical Version s – view previous versions of standard Translated Version s: Material is NBR rubber. D Type M micro-hardness testing Hi, Pat. The Eng-Tips staff will check this out and take appropriate action.

Register now while asmt still free! Resources Digital Transformation may be defined in a axtm of different ways by analysts or enterprise software vendors.

I have had some O-rings tested at two different labs. Thank you for d415 and all tips! I’m new to the rubber scene so any help is appreciated! I think it depends on what what specification or requirements you’re trying to meet, or what the customer wants.

  EUTROMBICULA ALFREDDUGESI PDF

Do not regsrd both as durometer. Obviously an extreme case will be the rapid fall when unvulcanised rubber is tested. Red 1d415 This Post Please let us know here why this post is inappropriate. D Type M micro-hardness testing 3 thread Forum. D Type M micro-hardness testing Thank you stancom for the suggestion!

The tip of the indentor takes some time to settle into the depression it makes, eg overcoming drag forces – which one reason for the application of a solid lubricant, usually talc. Secondly, Since method D shows both samples to be 70 durometer could the varying results using method D be caused by a difference in compression set, since the method is dependent on time?

Defense manufacturing is all about project manufacturing and project accounting. Material 1 and Material 2 should be the same. D Type M micro-hardness testing 3. The D results from both labs matched however the D test results varied.

ASTM D1415

This curve is defined as follows: For such compounds, differences in the dwell time in the two hardness tests Test Methods D and D result in differences in hardness values.

Something I should have included before: It is easy to find on the web. Students Click Here Join Us!