Home > QM, accreditation, proficiency tests > Round robin tests XRF-analysis > 129-2017-geopt40-shtx-1
Logo

Round robin tests XRF-analysis XRF Round-robin test GeoPT 40A, England - ShTX-1, Calcearous organic-rich shale

Study organized by:
International Association of Geoanalysts and Geostandards Newsletter - GeoPT40A
Material of proficiency test:
ShTX-1, Calcearous organic-rich shale
Study finished:
2017 - 2
Literature:
Report - GeoPT40A Proficiency Testing Round 40A (Laborcode CRB = X25)

major elements [wt %]

CRBRV1sRVZ-Score
MgO0,5500,4200,0106,730
Al₂O₃3,9604,0000,065-0,310
SiO₂25,00025,1300,309-0,210
P₂O50,0990,0990,0030,000
K₂O0,3300,3370,008-0,440
CaO33,05032,9500,3890,130
TiO₂0,1800,1750,0050,530
Fe₂O₃tot1,6201,6120,0300,130
MnO0,0130,0110,0011,940
L.O.I.31,54031,6100,380-0,110
TC11,92011,9100,1640,030
TOC*5,3304,9500,580

trace elements [µg/g]

CRBRV1sRVZ-Score
As15,0015,100,800,03
Ba59,0073,003,10-2,28
Ce31,0024,801,202,56
Cl *130,0094,0041,00
Cr25,0029,701,40-1,63
Cu33,0033,801,60-0,26
F *550,00606,00162,00
Ga8,006,300,402,26
Hf2,001,180,104,45
Nd11,0011,000,600,00
Ni72,0074,903,10-0,47
Pb10,006,100,405,35
Rb12,0016,900,90-2,77
Sr1042,001017,0028,700,44
V421,00419,0013,500,07
Y10,009,600,500,37
Zn97,0097,803,90-0,10
Zr61,0052,602,301,82

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

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

News

Jan 13, 2021

Results of current round-robin tests published

In 2020, CRB has again successfully participated in a series of round-robin tests for asbestos analysis and X-ray fluorescence analysis. ... read more

Dec 16, 2020

INTERSCHUTZ trade fair postponed to June 2022

Another postponement: there will be no INTERSCHUTZ 2021. The organizers of the leading international trade fair for firefighting, rescue, civil protection, and safety have decided to postpone the show for another year. The new date for INTERSCHUTZ Hannover is June 20-25, 2022. ... read more

Dec 11, 2020

Follow-up report on the 29th Forum on Asbestos and Other Pollutants in Technical Structures

The 29th Forum Asbestos took place in Essen at the beginning of November. Due to the worsening infection situation, we did not have a booth on site this year but participated in the online offerings of the event. We have summarized some impressions of the event for you in this follow-up report. ... read more

';