ASTM D8322-20
Standard Test Method for Determination of Elements in Residual Fuels and Crude Oils by Microwave Plasma Atomic Emission Spectroscopy (MP-AES)

Standard No.

ASTM D8322-20

Release Date

2020

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D8322-20

Scope

1.1 This test method covers the determination of metals and other elements in residual fuel and crude oil by microwave plasma atomic emission spectroscopy (MP-AES). The specific elements within the scope of this method are V, Ni, Ca, Na, Al, Si, Zn, P, and S for residual fuel oil and Fe, V, Ni, Ca, Na, K, and S for crude oils. 1.2 Method working range: high expected concentration limit = highest ILS sample mean low expected concentration limit = lowest ILS sample mean if: (1) lowest ILS sample mean − Rlowest ILS sample mean > 0; otherwise it is determined by solving for X using the following equation: (2) X − RX= coarsest resolution, determined by 0.5*σr lowest ILS sample mean Crude Oil: Element Method Working Range (expected mg/kg) Iron 0.70 to 161.02 Vanadium 2.88 to 417.50 Nickel 0.36 to 107.66 Calcium 5.41 to 96.78 Sodium 1.18 to 97.13 Potassium 7.01 to 63.83 Sulfur 1059 to 35194 Residual Fuel Oil: Element Method Working Range (expected mg/kg) Vanadium 3.88 to 370.09 Nickel 1.47 to 96.68 Calcium 4.41 to 102.01 Sodium 2.80 to 112.67 Aluminum 4.13 to 154.12 Silicon 5.99 to 237.56 Zinc 2.75 to 102.46 Sulfur 1314 to 30134 1.3 This test method uses soluble metals in organic solvents for calibration and does not purport to quantitatively determine insoluble particulates. Analytical results are particle size dependent, and particles larger than a few micrometers may cause results to appear low 1.4 Elements present at mass fractions above the upper limit of the calibration curves can be determined with additional appropriate dilutions. Elements shall be measured at the wavelengths presented in Table 1. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D8322-20 Referenced Document

• ASTM D1298 Standard Test Method for Density, Relative Density (Specific Gravity), or API Gravity of Crude Petroleum and Liquid Petroleum Products by Hydrometer Method
• ASTM D4052 Standard Test Method for Density and Relative Density of Liquids by Digital Density Meter
• ASTM D4175 Standard Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants*， 2023-07-01 Update
• ASTM D5708 Standard Test Methods for Determination of Nickel, Vanadium, and Iron in Crude Oils and Residual Fuels by Inductively Coupled Plasma (ICP) Atomic Emission Spectrometry
• ASTM D6021 Standard Test Method for Measurement of Total Hydrogen Sulfide in Residual Fuels by Multiple Headspace Extraction and Sulfur Specific Detection
• ASTM D6299 Standard Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance*， 2023-07-01 Update
• ASTM D6300 Standard Practice for Determination of Precision and Bias Data for Use in Test Methods for Petroleum Products and Lubricants
• ASTM D6792 Standard Practice for Quality Management Systems in Petroleum Products, Liquid Fuels, and Lubricants Testing Laboratories*， 2023-11-01 Update
• ASTM D7372 Standard Guide for Analysis and Interpretation of Proficiency Test Program Results*， 2021-05-01 Update

ASTM D8322-20 history

• 2020 ASTM D8322-20 Standard Test Method for Determination of Elements in Residual Fuels and Crude Oils by Microwave Plasma Atomic Emission Spectroscopy (MP-AES)