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- ASTM D7622 Standard Test Method for Total Mercury in Crude Oil Using Combustion ASTM D7622 Standard Test Method for Total Mercury in Crude Oil Using Combustion and Direct Cold Vapor Atomic Absorption Method with Zeeman Background Correction14. Report14.1 Report results from the mercury determination on a ng/g (or mass-ppb) basis.15. Precision and Bias15.1 Precision - The precision ...
- ASTM D7622 Standard Test Method for Total Mercury in Crude Oil Using Combustion ASTM D7622 Standard Test Method for Total Mercury in Crude Oil Using Combustion and Direct Cold Vapor Atomic Absorption Method with Zeeman Background Correction12. Procedure12.1 Place crude oil sample containers in an ultrasonic homogenizer for approximately fifteen minutes just prior to analysis. Keep ...
- ASTM D7622 Standard Test Method for Total Mercury in Crude Oil Using Combustion ASTM D7622 Standard Test Method for Total Mercury in Crude Oil Using Combustion and Direct Cold Vapor Atomic Absorption Method with Zeeman Background Correction9. Preparation of Standards9.1 Working Standard Set - Prepare a set of standards that are appropriate to the range settings on the instrument ...
- ASTM D7622 Standard Test Method for Total Mercury in Crude Oil Using Combustion ASTM D7622 Standard Test Method for Total Mercury in Crude Oil Using Combustion and Direct Cold Vapor Atomic Absorption Method with Zeeman Background Correction6. Apparatus6.1 General configuration of the instrument shall have the following functional components: temperature controlled sample heating ...
- ASTM D7622 Standard Test Method for Total Mercury in Crude Oil Using Combustion ASTM D7622 Standard Test Method for Total Mercury in Crude Oil Using Combustion and Direct Cold Vapor Atomic Absorption Method with Zeeman Background Correction4. Summary of Test Method4.1 Controlled heating following thermal decomposition of the analysis sample in air is used to liberate mercury. The ...
- ASTM D7622 Standard Test Method for Total Mercury in Crude Oil Using Combustion ASTM D7622 Standard Test Method for Total Mercury in Crude Oil Using Combustion and Direct Cold Vapor Atomic Absorption Method with Zeeman Background Correction1. Scope1.1 This test method covers the procedure to determine the total mercury content in a sample of crude oil. This test method can be used ...
- ASTM D7455 Standard Practice for Sample Preparation of Petroleum and Lubricant P ASTM D7455 Standard Practice for Sample Preparation of Petroleum and Lubricant Products for Elemental Analysis14. Special Issues14.1 In the atomic spectroscopic methods it has been shown that the viscosity index (VI) improvers added to lubricating oils give low results when calibrations are performed ...
- ASTM D7455 Standard Practice for Sample Preparation of Petroleum and Lubricant P ASTM D7455 Standard Practice for Sample Preparation of Petroleum and Lubricant Products for Elemental Analysis7. Methods Requiring No Sample Preparation7.1 There are a number of test methods that essentially require no sample preparation. Mostly these test methods are X-ray fluorescence (XRF) test methods, ...
- ASTM D7455 Standard Practice for Sample Preparation of Petroleum and Lubricant P ASTM D7455 Standard Practice for Sample Preparation of Petroleum and Lubricant Products for Elemental Analysis5. Gross Sample Preparation5.1 Collection of a meaningful and representative sample is often the most critical step in an analytical procedure. In trace element analysis, in particular, extreme ...
- ASTM D7455 Standard Practice for Sample Preparation of Petroleum and Lubricant P ASTM D7455 Standard Practice for Sample Preparation of Petroleum and Lubricant Products for Elemental Analysis3. Summary of Practice3.1 This practice covers alternate ways of preparing a petroleum product or lubricant sample for elemental analysis measurements. The means of preparation of samples may ...