ASTM D7040-04(2020) pdf download

10-05-2020 comment

ASTM D7040-04(2020) pdf free download.Standard Test Method for Determination of Low Levels of Phosphorus in ILSAC GF 4 and Similar Grade Engine Oils by Inductively Coupled Plasma Atomic Emission Spectrometry.
ASTM D7040-04(2020) covers the quantitative determination of phosphorus in unused lubricating oils, such as International Lubricant Standardization and Approval Committee (ILSAC) GF 4 and similar grade engine oils, by inductively coupled plasma atomic emission spectrometry.
Referenced Documents
ASTM D5185 Test Method for Multielement Determination of Used and Unused Lubricating Oils and Base Oils by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES);
ASTM D6299 Practice for Applying Statistical Quality Assurance and Control Charting Techniques to Evaluate Analytical Measurement System Performance;
ASTM D6792 Practice for Quality Management Systems in Petroleum Products, Liquid Fuels, and Lubricants Testing Laboratories;
A sample portion is weighed and diluted by mass with mixed xylenes or other solvent. An internal standard, which is required, is either weighed separately into the test solution or is previously combined with the dilution solvent. Calibration standards are prepared similarly. The solutions are introduced to the ICP instrument by a peristaltic pump (required). By comparing emission intensity of phosphorus in the test specimen with emission intensities measured with the calibration standards and by applying the appropriate internal standard and background corrections, the concentrations of phosphorus in the sample is calculated.
This test method specifies that the internal standard is combined with the dilution solvent because this technique is common and efficient when preparing many samples. However, the internal standard can be added separately from the dilution solvent as long as the internal standard concentration is constant or accurately known.
Keywords:additive-elements; emission-spectrometry; GF 4 oils; ICP-AES; inductively-coupled plasma atomic emission spectrometry; internal standard; lubricating oils; phosphorus.

Download infomation Go to download
Note: If you can share this website on your Facebook,Twitter or others,I will share more.
ASTM A939-96(2001) pdf download ASTM Standards

ASTM A939-96(2001) pdf download

ASTM A939-96(2001) pdf free download.Standard Test Method for Ultrasonic Examination from Bored Surfaces of Cylindrical Forgings. ASTM A939-96(2001) covers a basic procedure of ultrasonically inspecting cylindrical forgings with bores from the bore surface. ASTM A939-96(2001) applies to...
Download Now
ASTM A940–96(2001) pdf download ASTM Standards

ASTM A940–96(2001) pdf download

ASTM A940–96(2001) pdf download.Standard Specification for Vacuum Treated Steel Forgings, Alloy, Differentially Heat Treated, for Turbine Rotors. ASTM A940–96(2001) covers vacuum treated, alloy steel forgings, differentially heat treated for turbine rotors. 3. Ordering Information 3.1 In addition...
Download Now
ASTM A941-04 pdf download ASTM Standards

ASTM A941-04 pdf download

ASTM A941-04 pdf free download.Standard Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys. This standard is a compilation of definitions of terms related to steel, stainless steel, related alloys, and ferroalloys. When a term is...
Download Now


Anonymous netizen Fill in information