standards

XRS Standards

ISO 20884 Test Method


X-ray fluorescence spectroscopy is the technique of preference for the analysis of additiveand trace elements in fresh lubricants. The main strengths of the technique are itsreproducibility, accuracy and ease of use.
For the calibration of an XRF spectrometer for blending control applications, highconcentrated single element concentrates are required. Most of the commercial availableorganic standards are 5000 ppm and do often contain another non-certified major element(i.e. Sulfur). Since recently we can offer a list of high concentrated single elementconcentrates.
These concentrates are stable for several years (the test period covers 4 years)and miscible with each other. Below you can find a table that lists our commercially availableconcentrates. The table lists the concentration of the major element, some physical data andthe presence of trace elements (72 elements, from Sodium (atomic number 11) up to Uranium(atomic number 92) are tested).

Features
• Analyze a wide range of elements: Boron to Uranium (4kW WDXRF), Sodium to Uranium (CG EDXRF)
• PPB-level elemental detection limits
• Simple 3-step process: pipette, dry and analyze
• Easy-to-use EZ Analysis user interface
• Minimal hazardous waste
• Non-technical operation
• No routine recalibration
• No gases or acids
• No digestion
• No filtration

Concentration of the major elements:



Sodium
Sodium content
5.07 %
Density 20°C
0.959 g/cm3
Viscosity 20°C
144 cPs
Trace elements present above 0.0010 %
Si (0.0018%), K (0.0159%)
Compatibility with mineral oil
Addition of 5% 2-ethyl hexanoic acid is
recommended
Magnesium
Magnesium content
2.99 %
Density
0.935 g/cm3
Viscosity 20°C
246 cPs
Trace elements present above 0.0010 %
S (0.0015), Cl (0.0018), Ca (0.0017)
Compatibility with mineral oil
Addition of 5% 2-ethyl hexanoic acid is
recommended
Phosphorous
Phosphorous content
11.60 %
Density 20°C
0.997 g/cm3
Viscosity 20°C
10 cPs
Flash point
> 100°C
Trace elements present above 0.0010 %
Al (0.0020%), Si (0.0084%)
Compatibility with mineral oil
No problem
Sulfur
Sulfur content
36.5 %
Density 20°C
1.041 g/cm3
Viscosity 100°C
12 mm2.s-1
Trace elements present above 0.0010 %
None
Compatibility with mineral oil
No problem
Chlorine
Chlorine content
23.73
Density 20°C %
1.050 g/cm3
Trace elements present above 0.0010 %
None
Compatibility with mineral oil
No problem
Potassium
Potassium content
10.17 %
Density 20°C
0.992 g/cm3
Viscosity 20°C
738 cPs
Trace elements present above 0.0010 %
Rb (0.0012%)
Compatibility with mineral oil
Addition of 5% 2-ethyl hexanoic acid is
recommended
Calcium
Calcium content
5.05 %
Density 20°C
0.949 g/cm3
Viscosity 20°C
3684 cPs
Trace elements present above 0.0010 %
Mg (0.0267), Al (0.0015), Mn (0.0010%), Fe
(0.0014%), Sr (0.0020%)
Compatibility with mineral oil
No problem
Calcium
Calcium content
15.50
Density 20°C
1.191 g/cm3
Trace elements present above 0.0010 %
Mg (0.0078), Al (0.0056), Si (0.0077), S
(1.24%), Cl (0.0045%), K (0.0044%), Mn
(0.0030%), Fe (0.0056%), Sr (0.0093%)
Compatibility with mineral oil
No problem
Zinc
Zinc content
9.96 %
Density 20°C
0.977 m/cm3
Viscosity 20°C
81 cPs
Flash point
> 100°C
Trace elements present above 0.0010 %
Cl (0.0013)
Compatibility with mineral oil
No problem
Barium
Barium content
12.50 %
Density 20°C
1.013 g/cm3
Viscosity 20°C
227 cPs
Trace elements present above 0.0010 %
Ca 0.0065%), Sr (0.441 %)
Compatibility with mineral oil
Addition of 5% 2-ethyl hexanoic acid is
recommended

XRS Standards


for X-ray fluorescence (XRF) analysis

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