Norm

ASTM D7671 - 10e1 en

Standard Test Method for Corrosiveness to Silver by Automotive Spark–Ignition Engine Fuel–Silver Strip Method

  • Deze norm is ingetrokken sinds 01-10-2015

50,60 61,23 Incl BTW

Over deze norm

Status Ingetrokken
Aantal pagina's 8
Gepubliceerd op 01-10-2010
Taal Engels

1.1 This test method covers the determination of the corrosiveness to silver by automotive spark-ignition engine fuel, as defined by Specification D4814, or similar specifications in other jurisdictions, having a vapor pressure no greater than 124 kPa (18 psi) at 37.8°C (100°F), by one of two procedures. Procedure A involves the use of a pressure vessel, whereas Procedure B involves the use of a vented test tube.

1.2 The result of the test is based on a visual rating that is classified as an integer in the range from 0 to 4 as defined in Table 1.

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

1.4 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. For specific warning statements, see 6.1 and Section 7.

TABLE 1 Silver Strip Classifications

Note 1—Classifications provided by IP 227 Determination of Corrosiveness to Silver of Aviation Turbine FuelsSilver Strip Method.

Note 2—Distinctions between Classifications 1 and 2 are made using The Color Standard for Tube Deposit Rating (referenced in Test Method D3241) in accordance with 11.1.1.

ClassificationDesignationDescription
0No tarnishIdentical to a freshly polished strip, but may have some very light loss of luster
1Slight tarnishFaint brown or white discoloration of strip (see 12.1)
2Moderate tarnishPeacock colors such as blue or mauve or medium/dark straw or brown coloration (see 12.1)
3Slight blackeningSpots and patches of black or gray on surface or uniform thin film of black deposit
4BlackeningUniform heavy blackening with or without scaling

Details

ICS-code 75.160.20
Engelse titel Standard Test Method for Corrosiveness to Silver by Automotive Spark–Ignition Engine Fuel–Silver Strip Method
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