5/27/2018 ISO 48

1/17

ICS 83.060

Elastomere und thermoplastische Elastomere Bestimmung der Hrte(Hrte zwischen 10 IRHD und 100 IRHD) (ISO 48 : 1994 + Amd. 1 : 1999)

This standard incorporates International Standard

ISO 48 : 1994 Rubber, vulcanized or thermoplastic Determination of hardness (hardness between10 IRHD and 100 IRHD) (including Amendment 1 : 1999).

A comma is used as the decimal marker.

National foreword

This standard has been prepared by ISO/TC 45 Rubber and rubber products.

The responsible German body involved in its preparation was the Normenausschuss Materialprfung(Materials Testing Standards Committee), Technical Committee Prfung der physikalischen Eigenschaftenvon Kautschuk und Elastomeren.

DIN ISO 471 and DIN ISO 4661-1 are the standards corresponding to International Standards ISO 471 andISO 4661-1, respectively, referred to in clause 2 of the ISO Standard.

Amendments

DIN 53519-1 and DIN 53519-2, May 1972 editions, have been superseded by the specifications ofDIN ISO 48.

Previous editions

DIN 53519: 1965-01; DIN 53519-1: 1972-05; DIN 53519-2: 1972-05.

Ref . No. DIN ISO 48 : 2003-07English pr ice group 11 Sales No.0411

11.03

DEUTSCHE NORM July 2003

ISO 48

{

Continued overleaf.

ISO Standard comprises 15 pages.

No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e.V., Berlin.Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen) .

Rubber, vulcanized or thermoplasticDetermination of hardness (hardness between 10 IRHD and 100 IRHD)

(ISO 48 : 1994 + Amd. 1 : 1999)

Supersedes DIN 53519-1and DIN 53519-2,May 1972 editions.

5/27/2018 ISO 48

2/17

5/27/2018 ISO 48

3/17

Rubber, vulcanized or thermoplasticDetermination of hardness (hardness between 10 IRHD and 100 IRHD)

Page 1ISO 48 : 1994 + Amd. 1 : 1999

5/27/2018 ISO 48

4/17

Page 2ISO 48 : 1994 + Amd. 1 : 1999

5/27/2018 ISO 48

5/17

Page 3ISO 48 : 1994 + Amd. 1 : 1999

5/27/2018 ISO 48

6/17

Page 4ISO 48 : 1994 + Amd. 1 : 1999

5/27/2018 ISO 48

7/17

Page 5ISO 48 : 1994 + Amd. 1 : 1999

5/27/2018 ISO 48

8/17

Page 6ISO 48 : 1994 + Amd. 1 : 1999

5/27/2018 ISO 48

9/17

Page 7ISO 48 : 1994 + Amd. 1 : 1999

One measurement shall be made at a minimum of

three different points on the test piece separated

from each other by a minimum of 6 mm and the

median taken, i.e. the middle value when these are

arranged in increasing order.

5/27/2018 ISO 48

10/17

Page 8ISO 48 : 1994 + Amd. 1 : 1999

5/27/2018 ISO 48

11/17

Page 9ISO 48 : 1994 + Amd. 1 : 1999

5/27/2018 ISO 48

12/17

Page 10ISO 48 : 1994 + Amd. 1 : 1999

5/27/2018 ISO 48

13/17

Page 11ISO 48 : 1994 + Amd. 1 : 1999

5/27/2018 ISO 48

14/17

Page 12ISO 48 : 1994 + Amd. 1 : 1999

5/27/2018 ISO 48

15/17

Page 13ISO 48 : 1994 + Amd. 1 : 1999

a) the known relationship1), for a perfectly elastic

isotropic material, between indentation D,

expressed in hundredths of a millimetre, and

Youngs modulus E, expressed in megapascals,

viz:

=

740740

480561

,,

,

,

E

f

E

FRD

where

F is the total indenting force, in newtons;

f is the contact force, in newtons;

R

1) Scott, J . R., Physical Testing of Rubbers, Maclaren and Sons, London, 1995.

5/27/2018 ISO 48

16/17

Page 14ISO 48 : 1994 + Amd. 1 : 1999

5/27/2018 ISO 48

17/17

Page 15ISO 48 : 1994 + Amd. 1 : 1999