Home > QM, accreditation, proficiency tests > Round robin tests XRF-analysis > 086-2013-geopt33-dbc-1
Logo

Round robin tests XRF-analysis XRF Round-robin test GeoPT33, England - DBC-1, Ball Clay

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT33
Material of proficiency test:
DBC-1, (Ball Clay)
Study finished:
2013 - 8
Literature:
Report - GeoPT33 Proficiency Testing Round

major elements [wt %]

CRBRV1sRVZ-Score
Na₂O0,2900,3900,009-5,730
MgO0,3500,3600,008-0,380
Al₂O₃32,40031,8200,3800,760
SiO₂52,28051,9800,5700,270
P₂O50,0710,0710,002-0,090
K₂O2,6602,6400,0460,260
CaO0,2000,1960,0050,380
TiO₂1,1301,1230,0300,160
Fe₂O₃ tot0,9200,9370,019-0,460
MnO0,009---------
L.O.I.*9,65010,1300,140-1,670

trace elements [µg/g]

CRBRV1sRVZ-Score
As *16,009,00------ 
Ba517,00476,0015,101,36
Ce115,00120,004,70-0,52
Co5,002,100,109,95
Cr121,00105,004,201,88
Cu14,0021,401,10-3,41
Ga60,0053,301,401,44
Hf4,305,000,30-1,08
La77,0064,402,802,29
Nd48,0051,702,30-0,81
Ni25,0024,001,200,43
Pb49,0053,502,30-0,95
Pr17,0014,200,801,83
Rb206,00194,007,000,85
Sm8,009,500,50-1,41
Sn22,0024,201,20-0,99
Sr129,00134,005,10-0,50
Ta5,002,600,206,51
V144,00138,005,200,62
Y20,0026,301,30-2,46
Zn22,0021,001,100,47
Zr167,00183,006,70-1,22

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
Download results on this study as pdf-file

Asbestos Analysis0

Reliable analysis of asbestos with SEM/EDXORDER NOW!

Order inquiry & contact

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

News

Apr 17, 2024

Hazardous particulate matter: Australia bans quartz composite countertops

From July 2024, the production, processing, delivery, and installation of quartz composite (also known as stone composite) is prohibited in Australia — a material that is also often used in this country to produce kitchen plates. With this decision, the labor ministers of the Australian states followed a recommendation from the National Occupational Health and Safety Agency. ... read more

Apr 9, 2024

VDU training “Sampling of drinking and bathing pool water” in Hanover

On April 23, 2024, the VDU office in Hanover will offer basic and refresher training on “sampling drinking and bathing pool water.” As a member of the Association of German Investigation Laboratories e.V. (vdu), we would like to draw your attention to this interesting event. ... read more

Mar 13, 2024

Follow-up report: DCONex 2024

In January 2024, the building pollutant experts met again at DCONex. The CRB team was also back at the trade congress and exhibition. This time not only with its own stand but also on stage: Our colleague Dr. Gunnar Ries moderated the lecture block "Current issues in asbestos analysis" and in this session, our laboratory manager Dr. Stefan Pierdzig gave a lecture on the basics of asbestos analysis. ... read more

Downloads

Important information