Home > QM, accreditation, proficiency tests > Round robin tests XRF-analysis > 028-2001-geopt8-ou-4
Logo

Round robin tests XRF-analysis XRF Round-robin test GeoPT8 - OU-4, Microdiorite

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT8
Material of proficiency test:
OU-4, Microdiorite
Study finished:
2001 - 3
Literature:
Preliminary Report - GeoPT8 Proficiency Testing Round

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O3,5603,6100,060
MgO2,2702,3000,041
Al₂O₃14,93014,8300,200
SiO₂63,40063,3400,680
P₂O50,1770,1730,005
SO₃0,020  
K₂O2,7002,7000,047
CaO4,4904,4800,072
TiO₂0,7910,0770,016
Fe₂O₃ tot.5,8205,8600,090
MnO0,1400,1400,004

trace elements [µg/g]

CRBRV1sRVZ-Score
Ba355,00360,1012,00
Ce53,0055,702,40
Co16,0013,500,70
Cr56,0054,702,40
Cu26,0027,301,30
Ga18,0017,400,90
Hf4,805,540,34
La32,0025,001,20
Nb11,0012,800,07
Nd27,0027,901,35
Ni25,0021,000,76
Pb18,0014,100,76
Pr9,006,850,41
Rb102,0098,503,90
Sr106,0099,904,00
Th9,008,420,49
V79,0082,703,40
Y47,0047,102,10
Zn71,0069,502,90
Zr197,00195,107,10

Legend

CRB
results CRB
cooperative test
results collaborative study
1s-RV
standard deviation collaborative study
Z-Score
Difference of measured value from mean study
*
Value not certified

Asbestos Analysis0

Reliable analysis of asbestos with SEM/EDXORDER NOW!

Order inquiry & contact

  • Phone: +49 (0)5505 // 940 98-0
  • fax: +49 (0)5505 // 940 98-260

News

Sep 16, 2019

Job vacancy: Geoscientist (m/f/d)

To strengthen our team we are looking for a geoscientist/material scientist in the field of asbestos analysis. Experience in this field would be ideal, but is not a prerequisite. ... read more

Aug 9, 2019

Non-destructive analysis of firefighting clothing on asbestos/KMF

CRB develops in cooperation with MeyerundKuhl Spezialwäschen GmbH a non-destructive method for the analysis of potentially contaminated fire brigade clothing on asbestos and artificial mineral fibres ... read more

Jul 26, 2019

vdu training course "LAGA PN 98" in Hanover

On 24 September 2019, the vdu training course "LAGA PN 98" will take place in Hanover. As a member of the Association of German Research Laboratories e.V. (vdu) we would like to draw your attention to this interesting event. ... read more

';