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ASTM D217 for cone penetration of lubricating grease
11. Procedure11.1 Unworked Penetration - Place the cup on the penetrometer table, making certain that it cannot teeter. Set the mechanism to hold the cone in the zero position, and adjust the apparatus carefully so that the tip of the cone just touches the surface at the center of the test specimen. ...
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ASTM D217 for cone penetration of lubricating grease
9. Preparation of Apparatus9.1 Cleaning Penetrometer Cone - Clean the penetrometer cone carefully before each test with a soft cloth or paper wiper. The wiper can be dampened with an appropriate volatile gum-free solvent, when necessary, to remove any grease remaining on the cone. The solvent should ...
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ASTM D217 for cone penetration of lubricating grease
8. Sampling8.1 Sample Size - Sufficient sample (at least 0.4 kg (1 lb)) to overfill the cup of the standard grease worker is required. If the sample size is insufficient and penetration ranges from NLGI 0 to 4, use Test Method D 1403. If the full-scale penetration value calculated in Test Method D 1403 ...
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ASTM D217 for cone penetration of lubricating grease
6. Apparatus6.1 Penetrometer, in accordance with A1.1. The instrument shall be capable of indicating depth in tenths of a millimetre. A sketch of a generic penetrometer is shown in Fig. 1.6.2 Standard Penetrometer Cone, in accordance with A1.2, is suitable for all penetrations. An optional penetrometer ...
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ASTM D217 for cone penetration of lubricating grease
4. Summary of Test Methods4.1 For unworked penetration, the sample is brought to 25°C (77°F) in a worker cup or other suitable container. The cone assembly of the penetrometer is released and allowed to drop freely into the grease for 5 s. Three determinations are made and averaged to give the reported ...
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ASTM D217 for cone penetration of lubricating grease
3. Terminology3.1 Definitions3.1.1 lubricating grease, n-a semi-fluid to solid product of a dispersion of a thickener in a liquid lubricant.3.1.1.1 Discussion - The dispersion of the thickener forms atwo-phase system and immobilizes the liquid lubricant by surface tension and other physical forces. Other ...
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ASTM D217 for cone penetration of lubricating grease
1. Scope1.1 These test methods cover four procedures for measuring the consistency of lubricating greases by the penetration of a cone of specified dimensions, mass, and finish. The penetration is measured in tenths of a millimetre.NOTE 1 - The National Lubricating Grease Institute (NLGI) classified ...
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ASTM D1275 for corrosive sulfur in electrical insulating oils
10. Interpretation of Results10.1 Classify the oil as corrosive or noncorrosive in accordance with Table 1. Classification of corrosive or noncorrosive is to be aided through the use of ASTM Copper Strip Corrosion Standards as referenced in Test Method D 130. A description of the tarnish levels is provided ...
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ASTM D1275 for corrosive sulfur in electrical insulating oils
9. Method B9.1 Prepare the test specimen as described in 8.1.9.2 Promptly place the prepared copper strip in a clean 250-mL bottle to which has been added 220 mL of the oil to be tested. Place the bent copper strip standing on its long edge so that no flat surface lies along the glass bottom of the vessel. ...
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ASTM D1275 for corrosive sulfur in electrical insulating oils
8. Method A8.1 Use the oil to be tested as received. Do not filter the oil through paper.8.2 Promptly place the prepared copper strip in a clean 250-mL flask to which has been added 250 mL of the oil to be tested. Place the bent copper strip standing on its long edge so that no flat surface lies along ...
