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ASTM D 2000 

 American Society of Testing and Materials (ASTM) provide a standardized method of required physical

properties of a rubber product, based primarily on its Type (Heat esistance) and !lass ("il

esistance)#

the most common general classification system is ASTM $ %&&& Standard !lassification System for 

rubber products# it is to aid in the selection of practical rubber products for specific environments# 't also

provides a line callout designation for the specification of materials#

ASTM D2000 M 2 BG 7 14 B14 EA14 EF11 EF21 EO34

Specification Number 

ASTM D 2000 M%*+--.A-././%."-."0-/+

 American Society of Testing and Materials primary specification reference number#

nit! "Metric#En$%i!&'

 ASTM $%&&& M%*+--.A-././%."-."0-/+

'f present, the 1M1 indicates Metric units2 other3ise, .nglish measurements are indicated#

Gra(e ASTM $%&&& M2*+--.A-././%."-."0-/+

*rades % and up indicate additional requirements per Table 4 of the $%&&& specification (see Suffi5

equirements belo3)#

T)pe "*eat +e!i!tance'

 ASTM $%&&& M%B*+--.A-././%."-."0-/+

'ndicates high temperature resistance as follo3s6

 A 7 +&8!9:;8/

7 &&8!9%%8/

! 7 %:8!9%:+8/

$ 7 :&8!90&%8/

. 7 +:8!90-+8/

/ 7 %&&8!90

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! %&>

$ &&>

. ;&>

/ 4&>

* -&>

H 0&>

? %&>

@ &>

ef6 ASTM $-+

ASTM D2000 Materia% De!i$nation "T)pe an( ,%a!!'

 ASTM $%&&& M%BG+--.A-././%."-."0-/+

The standard does not directly specify rubber compounds, rather, it sets forth Type and !lass

(Temperature and "il esistance) criterion (* in sample) that, in turn, narro3 the field of options

based on application requirements# Ho3ever, for reference only, $%&&& lists the follo3ing typical

associations bet3een Type!lass designations and elastomer groups6

 AA utyl (polybutadiene), S, =atural, Bolyisoprene, eclaimed rubber

 A@ Bolysulfides

A utyl, .B$M (.thylene Bropylene)

! =eoprene (!hloroprene)

. =eoprene (!hloroprene)

/ una= (=itrile, =)

* una= (=itrile, =), Crethanes

@ una= (=itrile, =)

!A .B$M (.thylene Bropylene)

!. Hypalon (!hlorosulfonated Bolyethylene)

!H una= (=itrile, =), .!H (.pichlorohydrin)

$A .thylene Bropylene

$/ Bolyacrylate

$H Bolyacrylate, H=

.. Damac (.thylene Acrylic, A.M)

.H Bolyacrylate (A!M)

.@ /E

/! Silicone (high strength)

/. Silicone

/@ /luorosilicone

*. Silicone

H@ DitonF (/luoroelastomers)

@@ G Berfluoroelastomers

*ar(ne!!

 ASTM $%&&& M%*7--.A-././%."-."0-/+

Shore A $urometer 5 &2 e#g# + in the e5ample indicates +& Shore A hardness#

ef6 ASTM $%%-&

Ten!i%e Stren$t& ASTM $%&&&

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Stated in BS' (pounds per square inch) or MBa, depending on 3hether .nglish or Metric Cnits are

indicated (see above)# BS' can be converted to MBa by dividing by -:, or, conversely, MBa values can

be multiplied by -: to obtain BS'# Tensile strength in the sample is - MBa or %,&0 BS'#

ef6 ASTM $-%

Suffi- +e.uirement! "A%p&a' ASTM $%&&& M%*+-B-EA-EFEF%EO-EO0-F+

'ndicates tests and related criteria for various elements lie specific aging, fluid compatibility tests# .ach

element is cited by an alpha code (belo3) indicating a particular property follo3ed by a numeric code

(right) that specifies test criteria (e#g# time, temperature, fluid)#

 A 7 Heat esistance2 ref6 ASTM $:+0

7 !ompression Set2 ref6 ASTM $0