Norm

ASTM D471 - 12a en

Standard Test Method for Rubber Property—Effect of Liquids

  • Deze norm is ingetrokken sinds 01-07-2015

57,20 69,21 Incl BTW

Over deze norm

Status Ingetrokken
Aantal pagina's 16
Gepubliceerd op 01-12-2012
Taal Engels

1.1 This test method covers the required procedures to evaluate the comparative ability of rubber and rubber-like compositions to withstand the effect of liquids. It is designed for testing: (1) specimens of vulcanized rubber cut from standard sheets (see Practice D3182), (2) specimens cut from fabric coated with vulcanized rubber (see Test Methods D751), or (3) finished articles of commerce (see Practice D3183). This test method is not applicable to the testing of cellular rubbers, porous compositions, and compressed sheet packing, except as described in 11.2.2.

1.2 ASTM Oils No. 2 and No. 3, formerly used in this test method as standard test liquids, are no longer commercially available and in 1993 were replaced with IRM 902 and IRM 903, respectively (see Appendix X1 for details).

1.3 ASTM No. 1 Oil, previously used in this test method as a standard test liquid, is no longer commercially available and in 2005 was replaced with IRM 901; refer to Table 1 and Appendix X3 for details.

TABLE 1 Specifications and Typical Properties of IRM Reference Oils

Property

IRM 901A

IRM 902

IRM 903

IRM 905

ASTM Method

Specified Properties:

Aniline Point, °C (°F)

  124 ± 1 (255 ± 2)

  93 ± 3 (199 ± 5)

  70± 1 (158 ± 2)

  115 ± 1 (239± 2)

D611

Kinematic Viscosity

 

 

 

 

 

 (mm2/s [cSt])

 

 

 

 

 

 38°C (100°F)

 

  ...

  31.9–34.1

  ...

D445

 99°C (210°F)

  18.12–20.34

  19.2–21.5

  ...

  10.8–11.9

D445

Gravity, API, 16°C (60°F)

  28.8 ± 1

  19.0–21.0

  21.0–23.0

  ...

D287

Viscosity-Gravity Constant

  0.790–0.805

  0.860–0.870

  0.875–0.885

  ...

D2140

Flash Point COC, °C (°F)

  243(469) min

  232 (450) min

  163 (325) min

  243 (469) min

D92

Naphthenics, CN (%)

  27 (avg)

  35 min

  40 min

  ...

D2140

Paraffinics, CP (%)

  65 min

  50 max

  45 max

  ...

D2140

 

Typical Properties:

Pour Point, °C (°F)

  −12 (10)

  −12 (10)

  −31 (−24)

  −15 (5)

D97

ASTM Color

  L 3.5

  L 2.5

  L 0.5

  L 1.0

D1500

Refractive Index

  1.4848

  1.5105

  1.5026

  1.4808

D1747

UV Absorbance, 260 nm

  0.8

  4.0

  2.2

  ...

D2008

Aromatics, CA (%)

  3

  12

  14

  4

D2140

A Refer to Appendix X3. Table X3.1 reflects the differences in the properties between ASTM No. 1 Oil and IRM 901 for reference purposes.
TABLE 2 IRM 901 – 2012 Batch Test Results

Property

Method

2005 Batch COA

2005 Batch Current

2012 Sample Data

2012 Batch Average

Viscosity, cSt @99°C

D445

19.58

19.5

18.8

18.7

18.8

18.7

18.8

18.8

18.8

18.9

18.7

 

 

 

 

 

 

 

 

 

Gravity, API @16°C

D287

28.6

28.9

28.9

28.9

28.8

28.9

28.9

28.9

28.9

28.9

28.9

 

 

 

 

 

 

 

 

 

Flash Point COC, °C

D92

287

313

306

289

292

288

296

299

303

294

294

 

 

 

 

 

 

 

 

 

Aniline Point, °C

D611

123.8

124.7

124.8

124.8

124.7

124.3

124.5

124.8

124.8

124.9

124.6

 

 

 

 

 

 

 

 

 

Viscosity- Gravity Constant

D2140

0.796

0.798

0.799

0.799

0.800

0.799

0.799

0.799

0.799

0.799

0.799

 

 

 

 

 

 

 

 

 

Naphthenics, Cn%

D2140

24

26

26

27

28

27

26

26

27

29

 

 

 

 

 

 

 

 

 

Paraffinics, Cp%

D2140

70

72

71

71

69

70

71

71

71

71

70


1.4 ASTM No. 5 Oil was accepted into Specification D5900 as an industry reference material in 2010 and designated as IRM 905. The composition, and properties of this immersion oil were not changed and the data in Table 1 remains current. Refer to Appendix X4 for other details.

1.5 The specifications and properties listed in Table 1 for IRM 901, IRM 902, IRM 903, and IRM 905 are also maintained in Specification D5900.

1.5.1 The subcommittee responsible for maintaining Test Method D471, presently D11.15, shall review the data in Specification D5900 to ensure that it is identical to that which appears in Test Method D471. This shall be accomplished at the time of the 5 year review or more frequently when necessary.

1.6 Historical, technical, and background information regarding the conversion from ASTM No. 1, ASTM No. 2, and ASTM No. 3 Oils to IRM 901, IRM 902, and IRM 903 immersion oils is maintained in Practice D5964.

1.6.1 The subcommittee responsible for maintaining Test Method D471, presently D11.15, shall review the data in Practice D5964 to ensure that it is identical to that which appears in Test Method D471. This shall be accomplished at the time of the 5 year review or more frequently when necessary.

1.7 This test method includes the following:

Change in Mass (after immersion)

Section 10

Change in Volume (after immersion)

Section 11

Dimensional-Change Method for Water-Insoluble Liq-
 uids and Mixed Liquids


Section 12

Change in Mass with Liquid on One Surface Only

Section 13

Determining Mass of Soluble Matter Extracted by the
  Liquid


Section 14

Change in Tensile Strength, Elongation and Hardness
 (after immersion)


Section 15

Change in Breaking Resistance, Burst Strength, Tear
  Strength and Adhesion for Coated Fabrics


Section 16

Calculation (of test results)

Section 17


1.8 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.

1.9 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Details

ICS-code 83.060
Engelse titel Standard Test Method for Rubber Property—Effect of Liquids
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