RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 1
Variabb Teet Unit -3o •2a -lo 0 1a 2. 3. Zw°lue O rubba
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 2
Variabto Toot Unit Ja •2a -le 0 1a 2. 90 Z•velue Grubba teat
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 3
Variable Teet Unit -3. •2e -1a 0 1. 2. 3, Z-value Grubba teat
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 4
Variable Toni Unit Ja -20 -to 0 1s 2s ]s Z -value peaaea 1000 Aaalgnod va luo
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 1 Lab 5
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998
IL Lab 6
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 7
Verieble Tosi Unit •3s -2s -1s 0 15 25 35 Z-value Grubba
RESULTS OF THE INTERLARORATORY COMPARISON 4/1998 Lab 8
Ve--- Test Unll Ja -2a -7s 0 in 2s ]s Z•v°luo Grubba
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 9
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 10
Variable Test Unit Js •2e •1s 0 1a 25 35 Z-value Orubbs
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 11
Variable Test Unit -35 •2s -1s 0 1s 2s 3s Z•value Gtubbs
r
= RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 12~blo Test Unit Js -2s -1s 0 1s 2s 3s Z-uslas Grubbs loel
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 13
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 14
Variable Teat Unit 4s -2e -1a 0 1, 2. 3s Z-velon Grubbs
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 15
Variable Test Unit -3s -20 -1a 0 ta 2s 30 Z-value Grubba test
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 16
Varleblo Tell Unit Js -2s -1s 0 la 2s Js Z-vnloe Grubbe net
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 I Lat
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 18
Variable Teat Unit -3e •2e -1s 0 1a 2 3f Z•velue Grubbe
L
= RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 19Variable Taet Unit Ja -2e •1e 0 1a 2s 3a Z.volue Grubba
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 20
Vanebio Tosl Unll Js -1a •1s 0 ts 2s 3a Z-wlua Grubba
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 21
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 22
Varleble Test Unit as -2a -1f 0 10 2s 3s Z.veluo Grubbs
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 23
Vadebb Test Unit as -2a •10 0 1s 2s 3o Z-v°lue Grubbs
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 24
Vorlablo Teat Unit -30 -20 -0 0 lo 2s Js Z-valu° Grubba loot
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 25
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 26
Vedebb Teat Unit Ja •2a -1a 0 1a 2a 3a Z-value 6tea1 a
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 27
Verinble T-t Unit -3a -2s -1a 0 1s 2a 3. Z-ve lue Orubba
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 28
Variable Tosl ;nit,, -3 -2s -ts 0 1s 2s Js Z•v°lue Grub b
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 29
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 30
Veriable Tort Unll Ja -2a -1a 0 1a 2, Ja Z-value Oruhba
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 31
VariabIo Teit Unit -3 -2a -1a 0 1, 2s 3a Z-vulue Oruhba teat Maignod
RESULTS OF THE INTERLABORATORY COMPARISON 4/1998 Lab 32
Varinhle Toal Unit Ja -2s •1a 0 ts 2s Js Z-valu° Grubba
Hg (7,5 Ng/I), test Al
ö , .VIII 1flll1ll1l llff Illl~plll!I,IIIIIIIIIIIuIIIII,Iffll,I,..l .., I. IIIIIIII IIIIIIIIIIII IIIIII II III IIII IIIII~uIIIPIir...IILtlglll;a:,allll....I IIIIIIIIIIIIIIII IIII ..~...lgl~lllllllllll~-__
._„ Il.IIIII1IIIIIIiII...IIL..I ______. 111111 IMI-mom MTI ITL. •_. _____-.__.~;, ._ _ ...r. .., ...WW.. .:.:11IIdIlInV ... II, ,..•... ,,,,.,,~,: _ _
Irlldmlgllu.11ll . II III I I I mlonnl
Illlllllllll I Ilhllllldllllillllllll L III I ~~ I•.I IIIIIIIPIu,IIiiIilRluupplllllpllppl
VIII I III IIIIl~glll .I ~II,IIII III
VIII I IIIIIIIIIIII VIII
IIII IIII IIIIIIII II •IIIP
IIII IIIIIIIIIIII, .
IIIIUnIIInuNllull Illlluullma IllsIlilliflflllllllllllpupllllll
Im I Illglllullul 111111j11111111f111IIIII _
Illl,,,,,,,,,,r„r,rllll _Ilullllllll-u — llll
~llllllllullryullll„ , I,,.I,IIIIIIIIIIIIIII
III• ° IIIIIIIII o I I _____II I :IIIIII1TIA IIII IIII II I III ~~ IIIIi.I ILIA
..
till: IIIIIIIIIIII VIII IIII; IIII I1Illnl ,1111__1111__--. -. ut^'--- -~I~
- - _.. IIIIull I I PIIIIIIIIUitIIIIIIII VIII PIUIIIUmuIIIIImnIIIIIIIIIIIIIIIImIIlnnnmllllllllllllull.
lllllllllllll1IIIIIIII;II„ IIIIIlllillllllll
lir r,,,lll _ IIIIIIIIIIIIIIII. ~IIII~ IIIIIII Illdlllllllllllllll ~Illlllllllllllllllll~111e IIIIIIn...
~ IIII~ ul II ...:.:,.,,,,. .. ~ .I,I„~, ,,,, .,•, .,..,L,.. ,.. ...,I ...
Hg (0,272 pg1I), test A4 r 4
6 5 ' 4 3
I ~ VIII VIII lillllllllllllllllllllllllllllcllllllll . II~ IIIIIIIIIIII III ulullllllllll, II III
Illi IIIIIIIIII °I IIII~IIII IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII 1111111 IIIIIIII VIII IIIIIIII
IIII ICI I III! IIIIIIIIIII~I~III~IIIII~ ~ IIIIIIIII~~IIIIIIIIIIII ~~~~~~ ~I III; III 11111' 1.'' 'I,. I~~~~~~~~~~~~IIII I
II III IIICIIIIIIIIIII ;I I IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII _•
i
ö
iII IllllillllllllllIlllllllllllll Ilil IIIIIIIIII~IIlI1I1IlIIIIIIIII~IIIIIIIIIIIIIIIIIIIIII
.III II I' IIIIII IIIIII,.,VIIIIIIIII
...,..II IIIIIIIIII
II 1IIIlIl. II .I III 111111 II Iin .~.• . ---IIIIIIII__
____________________l_________l .IIIIIIIIIIIIIIII~IIIIIIIIIII .,IIIII~IIIIIIIII_ _..-__-..
—:~~~" ff""nnlll•Ir r;'ll'1191; rl ••I .I ....n... IIII Im IIII .~~ ~i ~~~.
m
II!I 'll lllllllllplllllll ~~~~
~~~~~~~~IIIII~~~I IIIIIIIIIIIIIIIII
IIII III III~ IIIIIIIIIII
IIIIIIII IIII
IIIIIIIIIIII Illlllllllllllllllllllllllhlllllllllllllll IIIIIIIIIIIIIIIIIIII
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII,I
. ...~... II IIII ____.. ..-r-~_--__- •!~ 111111 .1111111.. lll
l~llll IIII. UR WI IDIDI... J - - --._~`~_... _ _L,_I
I ull IIIIIIII .., .. IIII IIII VIII II
IIII ull IIIIIII •. ull ;:'I•~I VIII I. IIII
II II ..I. I hllllll IIII III IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIL,IIIIIIIIIIIIIIIIIIIIIIIIII~~~~~~I~~~~~~~~~IIIIIIIIIII~,..~,~.,, ~,,, IIII ,,,,,,,,,,,,~ I„IIIIIIIIIIIIIIIIIII,,,,,,,IIII,,IIII „,,,,,,, IIIIIIII 11111116111,,,,,,,,iiillllllll,,,lllllll Illlliiiiiiilllliiilllliiiillll,,,,llllllllllllllllllllllll , . ,,,,,, ,,,,~III VIII,•.• ull
.
il_2 JI~I IIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIII L IIIIIII~I~I ~I~II III III I I I II. , I iii i i ~ III ~ ~~~ ~.m. ~~~ ~~ ~ ~~~ ~ ~~ ~ ~~~~~~~~~~~~ ~~~~~~~~ ..
CN (42,4 Ng/I), test B2
IIIIIIIIIIIIIIIIIIII IIII IIIIIIIIIIIIIIII~ IIIIIIIITIIIIIIIIIIIIIIIIIIII_ 11111111
:.IIIIIIII IIII .... • IIIIIIIIII _ ... sim
tio _- R ,IIIIIIIIIIIIIIIJ IIII„1111 IIIIIIIIIIIL.
III II II
~• 1 :II IIIIIIIIIIIII~~I~I,,,,.,.,.,.,,,,,,uII~~~~~~~~~~~~IIIIIIIIIIIIIIII~„,,,,u,,,,,,~~~~,.IIIIJJJJJJJ, -3
_2 '•~~IIIIIIIIIIiIIIIIIVmlllllllll IIII~ ~1111111 I I IIIIIIIIIIIII~I: IIIIIIIIIIIIIIII IIII
-3 -5 5
”" .II IIIIIIII"" ' "" ”"1111 Illllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll1°I"""'p11IIIIIIIIIIIIIIIUIII!1111111°II°°°!TIIIIIII'I!'!'llllll'I"""' IIIIIIIIIII'I""I°"""""... 'I
... II1IIIIIIH Tlllllllull . IIII. ____. ---
IIIfIII VIII
III III,__._ 1lIlIIIu III
I III II IIIIII_i __ Il~u III III Vullllll...l..l I II I Illlll~ull~l~~liii~ullllllul,,,_~,.,,,IIII,,,,,,,,~IIIIIIIII~IIIIIIIIIIIIIIIIII ,,,, ,,,,1111 ~ IIII
19 26 5 8
CN (376 pgIl), test B5
4 4 3 •-
IIIIIIII"" ""IIIIIIIIIIII lil
N o l~l IIII II IIIIIIIIIIIIIIIIII IIII ; I II
,iiiiiiii,, liiiilliliiiiiiiilliiiiiiiiiliillilllliiiilliiiiiiiiilumi.,,,,ml ,,,,,,,,,, Irraidlll ul lIII
2 , „
3 - -4 :-
5 -
uvnn 1111111 nn
nn un~ nnrm..nmn..i
VIII IIII IIIIIIIIIIIIII' "'' "" "°111'11' II IIII IIII
5 26 8 19 32 7 8
Laboratory code
mineral oil (100 %), test Cl
6 5 4 -3
ö t VIIIAI
""
1III""IIII""IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IAIIIIIIIIIIZII ...1111 ""'1111111111111111
"" III3 4 -5 -6
22 29 1 20 32 14 19 31 26 24 17 3 7 10 25
Laboratory code
mineral oil (100 %), test C2
r
A = Result accepted (passed Z-score test, Zj<2)Z = Result questionable (failed Z-score test, 2<IZI<3) - = Result missing or below the detection limit
N = Result non-accepted (failed Z-score test, ZI>3) % Percentage of accepted results CA
Julkaisija 1999 Tekijä(t) (toimielimestä: nimi, puheenjohtaja, sihteeri)
Irma Mäkinen, Saha Kauppi, Kirsti Erkomaa, Riitta Saares. 011i Järvinen ja Timo Vänni
Julkaisun nimi (myös ruotsinkielinen) Laboratorioiden välinen vertailukoe 4/1998
Julkaisun laji Toimeksiantaja
Toimielimen asettamispvm raportti
Julkaisun osat
Tiivisteimä
Suomen ympäristökeskuksen tutkimuslaboratorio järjesti lokakuussa 1998 vertailukokeen julkisen valvonnan alaisille laboratorioille, teollisuuslaitosten laboratorioille ja tutkimuslaboratorioille. Määritettävinä analyytteinä olivat elohopea (Hg), kokonaissyanidi (CN) ja etineraaliöljyt luonnon- ja jätevesistä. Vertailuun osallistui 32 laboratorioita.
Tulosten arvioimiseksi laskettiin z- arvo ja sitä varten asetettiin kokonaisvirheelte tavoite 10-20 % määrityksestä riippuen. Näin ollen vertailussa hyväksyttiin tulokset, jotka poikkesivat vähemmän kuin 20-40 % asetetusta vertailuarvosta. Lopullinen keskiarvo laskettiin senjälkeen kun tulosaineistosta oli poistettu poikkeavat tulokset (Grubbs-testi).
Laboratorioiden tuloksia voidaan pitää vertailukelpoisina kokonaissyanidin osalta, mutta elohopean ja mineraaliöljytulosten kohdalla vertailukelpoisuus ei ole vielä riittävän hyvä.
Laboratorioiden raportoimat mittausepävarmuudet vaihtelivatjonkin verran elohopean ja rrineraaliöljyjen määrityksessä.
Koko tulosaineistosta hyväksyttiin 85 %.
Asiasanat (avainsanat)
vesianalyysit, vesi- ja ympäristölaboratoriot, vertailukoe, interkalibrointi Muut tiedot
English summary
Sarjan nimi ja numero ISBN ISSN
Suomen ympäristökeskuksen moniste
952-11-0444-9
Kokonaissivumäärä Kieli Hinta
43 suomi
Jakaja Kustantaja
Suomen ympäristökeskus Suomen ympäristökeskus
Asiakaspaivelu PL 140
puh: (09) 40 300 0100 00251 Helsinki
Fax: (09) 40 300 0190
1455-0792
Luottamuksellisuus julkinen
Published by Date of publication Finnish Environment Institute
Author(s)
Irma Mäkinen, Saha Kauppi, Kirsti Erkomaa, Riitta Saares. 011i Järvinen ja Timo Vänni
Title of publication
Interlaboratory Comparison 4/1998
Type of publication Commissioned by
Parts of publication
Abstract
On October 1998 the samples were distributed tp the participating laboratories for determination mercury (Hg), total scyanide (CN) and mineral oils from different waters. 32 laboratories participated the comparison test.
The average concentration, the standard deviation nad the coefficient of variation were calculated after testing the outliers with Grubbs's test. The comparison of performance of the laboratories was made by using the z scores. The results were accepted (I z ~ < 2), if they deviated less than 10-30 % from the assigned value (the synthetic sample: the theoretical concentration; the natural and waste water samples: the mean value of the data)
There were some variation in the reported uncertainties for the mercury and mineral oils determinations.
In this comparison test totally 85 % of the results can be regarded to be accepted.
Keywords
Water analyses, water and environment laboratories, interlaboratory comparison, performance testing
Other information English summary
Series (key title and no.) ISBN ISSN
Mimegraph series of Finnish Environment Institute
952-11-0444-9 1455-0792
Pages Language Price Confidentiality
43 Finnish Public
Distributed by Publisher
Finnish Environment Institute Finnish Environment Institute
Tel: (09) 40 300 0100 P.O.B ox 140
Fax: (09) 40 300 0190 00251 Helsinki
ISBN 952-I 1-0444-9 ISSN 1455-0792
• • • ■ t f • • • • • • 5 5 • • • ■ • 0 • ■ ! ■ i • • • i ■ • •