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  • ASTM D4740 for cleanliness and compatibility of residual fuels by Spot test ASTM D4740 for cleanliness and compatibility of residual fuels by Spot test8. Cleanliness Procedure8.1 Heat the sample in the original container in the heating bath or on a hot plate to above 90° to ensure the sample is in a fluid state.8.2 Mix thoroughly.NOTE 1 - Mechanical shaking or mechanical mixing ...
  • ASTM D4740 for cleanliness and compatibility of residual fuels by Spot test ASTM D4740 for cleanliness and compatibility of residual fuels by Spot test6. Apparatus6.1 Test Paper - Chromatographic paper cut or divided into appropriately sized squares, strips, or circles. Store the paper, without folding, rolling, or bending, in a tightly closed container.6.2 Test Paper Support ...
  • ASTM D4740 for cleanliness and compatibility of residual fuels by Spot test ASTM D4740 for cleanliness and compatibility of residual fuels by Spot test4. Summary of Test Method4.1 Cleanliness Procedure - A drop of the preheated and thoroughly mixed sample is put on a test paper and placed in an oven at 100°C. After 1 h, the test paper is removed from the oven and the resultant ...
  • ASTM D4740 for cleanliness and compatibility of residual fuels by Spot test ASTM D4740 for cleanliness and compatibility of residual fuels by Spot test1. Scope1.1 This test method describes separate procedures for determining the cleanliness of residual fuel oil and the compatibility of a residual fuel oil with a blend stock. It is applicable to residual fuel oils with viscosities ...
  • ASTM D129 for sulfur in petroleum products (General Bomb method) ASTM D129 for sulfur in petroleum products (General Bomb method)7. Calculation7.1 Calculate the sulfur content of the sample as follows:Sulfur, weight percent = (P - B)13.73/Wwhere:P = grams of BaSO4 obtained from sample,B = grams of BaSO4 obtained from blank, andW = grams of sample used.8. Report8.1 ...
  • ASTM D129 for sulfur in petroleum products (General Bomb method) ASTM D129 for sulfur in petroleum products (General Bomb method)6. Procedure6.1 Preparation of Bomb and Sample - Cut a piece of firing wire 100 mm in length. Coil the middle section (about 20 mm) and attach the free ends to the terminals. Arrange the coil so that it will be above and to one side of the ...
  • ASTM D129 for sulfur in petroleum products (General Bomb method) ASTM D129 for sulfur in petroleum products (General Bomb method)4. Apparatus and Materials4.1 Bomb, having a capacity of not less than 300 mL, so constructed that it will not leak during the test and that quantitative recovery of the liquids from the bomb may be achieved readily. The inner surface of ...
  • ASTM D129 for sulfur in petroleum products (General Bomb method) ASTM D129 for sulfur in petroleum products (General Bomb method)3. Summary of Test Method3.1 The sample is oxidized by combustion in a bomb containing oxygen under pressure. The sulfur, as sulfate in the bomb washings, is determined gravimetrically as barium sulfate.3.2 Warning - Strict adherence to ...
  • ASTM D129 for sulfur in petroleum products (General Bomb method) ASTM D129 for sulfur in petroleum products (General Bomb method)1. Scope1.1 This test method covers the determination of sulfur in petroleum products, including lubricating oils containing additives, additive concentrates, and lubricating greases that cannot be burned completely in a wick lamp. The test ...
  • ASTM D128 standard test methods for analysis of lubricating grease ASTM D128 standard test methods for analysis of lubricating grease28. Procedure28.1 Weigh 10 g of the sample into a 250-mL Erlenmeyer flask. Add 10 mL of NaOH (100 g/L) and heat the mixture under a reflux condenser for 2 h.28.2 Cool the flask and substantially neutralize the NaOH with H2SO4 (1 + 4); ...