ASTM-D4927 2005
$40.63
D4927-05 Standard Test Methods for Elemental Analysis of Lubricant and Additive Components—Barium, Calcium, Phosphorus, Sulfur, and Zinc by Wavelength-Dispersive X-Ray Fluorescence Spectroscopy
| Published By | Publication Date | Number of Pages |
| ASTM | 2005 | 9 |
ASTM D4927-05
Historical Standard: Standard Test Methods for Elemental Analysis of Lubricant and Additive Components—Barium, Calcium, Phosphorus, Sulfur, and Zinc by Wavelength-Dispersive X-Ray Fluorescence Spectroscopy
ASTM D4927
Scope
1.1 These test methods cover the determination of barium, calcium, phosphorus, sulfur, and zinc in unused lubricating oils at element concentration ranges shown in . The range can be extended to higher concentrations by dilution of sample specimens. Additives can also be determined after dilution. Two different methods are presented in these test methods.
1.2 Test Method A (Internal Standard Procedure)Internal standards are used to compensate for interelement effects of X-ray excitation and fluorescence (see Sections through ).
1.3 Test Method B (Mathematical Correction Procedure)The measured X-ray fluorescence intensity for a given element is mathematically corrected for potential interference from other elements present in the sample (see Sections through ).
1.4 The preferred concentration units are mass % barium, calcium, phosphorus, sulfur, or zinc.
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 and health practices and determine the applicability of regulatory limitations prior to use.
Keywords
additives; barium; calcium; lubricating oil; phosphorous; sulfur; wavelength-dispersive; X-ray fluorescence; zinc
ICS Code
ICS Number Code 75.100 (Lubricants, industrial oils and related products)
DOI: 10.1520/D4927-05
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | Scope Referenced Documents Summary of the Test Methods TABLE 1 |
| 2 | Significance and Use Interferences Apparatus Purity of Reagents Reagents and Materials |
| 3 | Preparation of Internal Standards Preparation of Calibration Standards |
| 4 | Instrument Calibration for Barium, Calcium, Phosphorus, Sulfur, and Zinc Analysis of Quality Control Samples Procedure TABLE 2 |
| 5 | Reagents and Materials Preparation of Calibration Standards Calibration TABLE 3 |
| 6 | Report Analysis of Quality Control Samples Procedure Quality Control Precision and Bias TABLE 4 TABLE 5 |
| 7 | FIG. 1 |
| 8 | FIG. 1 |
| 9 | Keywords X1. QUALITY CONTROL X1.1 X1.2 X1.3 X1.4 X1.5 X1.6 |
