Norm

ASTM D471 - 12 en

Standard Test Method for Rubber Property—Effect of Liquids

  • Deze norm is ingetrokken sinds 01-12-2012

57,20 69,21 Incl BTW

Over deze norm

Status Ingetrokken
Aantal pagina's 14
Gepubliceerd op 01-05-2012
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.

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 OnlySection 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 18

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.

TABLE 1 Specifications and Typical Properties of IRM Reference Oils

PropertyIRM 901A IRM 902IRM 903IRM 905ASTM 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) ... 31.934.1 ... D445
99°C (210°F) 18.1220.34 19.221.5 ... 10.811.9 D445
Gravity, API, 16°C (60°F) 28.8 ± 1 19.021.0 21.023.0 ... D287
Viscosity-Gravity Constant 0.7900.805 0.8600.870 0.8750.885 ... 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.

Details

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