AbstracThis repbetweenbeen cirother ancompar 1. GenThe preevaluateprovidecalibratcompari SIM.M SIM.M SIM.M 2. DatThe foll

InLALAINCECENRIN

INTI (A

1INTI, InCentro NLaborator(Canada)

S

Díaz

ct eport summan 7 NMIS. Frculated by tnd with the

rison has bee

neral Informesent compae the degree

e evidence sions deliverisons:

M.M-K1 foM.M-K5 forM.D-K3 for

ta of the parlowing SIM

nstitute ACOMET ATU

NTI ESMEC ENAM RC-INMS

NMETRO

Argentina)1 h

nstituto NacionNacional de Mrio Tecnológi, 7 INMETRO

SIM COM

Kornblit, F1; z,J.C.2; CentenJ.4; García, F.5

arizes the reFive standardthe NMIs. Thkey compar

en linked.

mation arison, nam

e of equivalesupporting red by them

r mass calibr mass calibrvolume dete

rticipant NMinstitutes ha

Country Costa Rica Uruguay Argentina Chile México Canada Brazil

has acted as t

nal de Tecnolo

Metrología (Méico del Urugu, Instituto Naci

FINAMPARISON

SIMLeiblich, J.1 ; B

no, L.M.2; Ram5; Leyton, F.5; C

esults of a ds with nomihe results reprison referen

med SIM.M.Mence in the cCMCs claim

m. It is part

ration of nomration of nomermination o

MIs and Tecave participa

TechniRamos, Santo, CKornbliGarcía, BecerraJacquesLoayza,

the pilot lab

ogía Industrialéxico); 3LACOuay (Uruguay)ional de Metro

AL REPORN IN MAS

M.M.M-K5Becerra, L.O.2

mos, O3; RodrígClaude J.6; Loa

SIM compainal values 2eported by thnce value of

M-K5, was calibration omed by theof a more g

minal value minal valuesof stainless s

chnical Conated in the co

ical Contact(O; Rodríguez,

C.; Cáceres, J. t, F; Leiblich, F.; Leyton, F. , L.O.; Peña, L, C. , V.M.; Cacais,

oratory

l (Argentina), OMET, Labora); 5CESMEC

ologia, Qualida

RT SS STAND5 ; Peña, L.M.2; guez, S.3; Santoayza, V.M.7; C

arison of m2 kg, 200 g, he participanf comparison

planned anf high accur

e participantgeneral proj

1 kg 2 kg, 200 gteel weights

ntacts omparison:

(s) , S.

J.

L.M.; Luján, L.

, F.A.

contact e-maiatorio Costarri

(Chile); 6NRade e Tecnolog

DARDS

Luján,L.2; o, C.4; Caceres

Cacais,F.A.7

ass standar50 g, 1 g an

nts are consin CCM.M-K

nd carried oracy mass stts in high ect which c

, 50 g, 1 g ans of 2 kg, 1 k

.; Díaz,J.C.; Ce

il: ferk@inti.goicense de Met

RC, National Ria (Brazil)

,

rds carried nd 200 mg histent with ea

K5 to which

out in orderandards, andaccuracy m

comprises th

nd 200 mg kg, 200 g,1 g

enteno, L.M.

ob.ar, 2 CENAtrología; 4 LAResearch Cou

1/13

out ave ach this

r to d to

mass hree

g

AM, ATU, uncil

3. GenA set offor the 2012, oreferredin Table

The travwhich wto the claborato A protoinspectispecifie • The st • The in

achievlabora

• The C

in ordpartici

4. SchThe me

neral Considf five stainlecomparison

once measurd to 20 ºC, Ve 1.

veling standwere placed omparisonsSories was ma

ocol was agion in each ed. Particular

tandards wer

nstitutes appve uncertaintatory applied

CIPM-2007 fder to estimipants retrosp

hedule asurements

derations aness steel stann. The nominrements werV. These resu

Table 1Nominal

value 2 kg

200 g 50 g

1 g 200 mg

dards were pin a carryin

SIM.M.M-Kade by hand,

greed previocountry, sto

rly, the follo

re not washe

plied their owties as low a

d subdivision

formula [1] wmate buoyanpectively aft

followed the

nd Procedundards, madenal values ae finished, Cults and the

1. Data assocSerial

NumberId

1867 541865 541864 541863 54S/N 54

placed in indg transporta

K1 and SIM.M, by technica

ously to theore, handlingowing criteria

ed during the

wn method as possible, n methods w

was applied ncy effects.fter the circul

e schedule sh

re e by Massteand identificCENAM decorrespondin

iated to the st

dentification

4016155820440161556204401615552044016155420440140212102

dividual wooation case, joM.D-K3. In al staff of the

e comparisog and acclima were agree

e comparison

to measure according to

with different

by all the paThe buoyanlation of the

hown in Tab

ch and provcations are setermined thng standard

tandard weigh

V / cm3 u

251,051 25,1487 6,2624 0,1258 00,025 0 0

oden cases fointly with th

all the casee NMIs.

on. In it, insmatization oed:

n.

the mass ofo its capabilt weighing d

articipants toncy correctitransfer stan

ble 2.

vided by CENshown in Ta

he volume ouncertaintie

hts

uV / cm3

0,024 0,0024 0,0008 0,0005 0,0002

for transporthe standardss, the transp

structions toof the standa

f the standarlities. That mesigns.

o determine ions were andard.

NAM was uable 1. In Ju

of the standaes uV are sho

tation purposs correspondportation amo

o travel, iniards have b

rds, in ordermeans that e

the air densapplied by

2/13

used une ards own

ses, ding ong

itial een

r to ach

sity, the

5. StabThe drimeasurestandardobtainedare plot

It can bconside

bility of the ft of the staements perfod of 200 md their assoctted in Figure

2

be concludedered.

N° Institu

-- CENAM1 LACOM2 LATU 3 INTI / 4 CESME-- CENAM5 NRC /C6 INMET7 CENAM

standards andards of 2formed by Cmg was only

ciated unceres 1A to 1E

Table 3.

2 kg

200 g

50 g

1 g

200 mg

d that no sig

Table 2. M

ute / Country

M / Mexico MET / Costa / Uruguay Argentina EC / Chile M / Mexico Canada TRO/Brazil M / Mexico

kg, 200 g, CENAM, in y measured rtainties and(the uncerta

Stability of theDate

July 2009 June 2011 July 2012 July 2009 June 2011 July 2012 July 2009 June 2011 July 2012 July 2009 June 2011 July 2012 June 2011 July 2012

gnificant effe

Measurement sch

y DameJu

Rica OcJanApJuJunFeJanJu

50 g, and 1July 2009, in June 20

d normalizedainty bars in

e standard. Vale / mg 2,79 2,83 2,82

0,305 0,324 0,317 0,076 0,076 0,077 0,004 0,004 0,004

0,000 1-0,000 2

ects associat

hedule ates of the easurementsly 2009 ctober 2009 nuary 2010 pril 2010 ly 2010 ne 2011

ebruary 2011nuary 2012 ly 2012

1 g was evain June 20

011 and Julyd errors valuthem corresp

lues obtained bU (k=2

0,170,130,130,0140,0160,0140,0040,0060,0050,0010,0010,001

0,000 70,000 7

ted to drifts

s

luated from 11, and in Jy 2012.The

ues En are lipond to k =

by CENAM 2) En

-0,1 0,1 0,0 -0,4 0,3 0,1 0,0 0,0 0,1 0,0 0,0 0,0

7 0,2 7 -0,2

of the stand

three seriesJuly 2012. T

mass errorsted in Tabl2).

dard need to

3/13

s of The rs e le 3

o be

6. SummThe resfrom thU (for k

LACOLATUINTI CESMCENANRC INMENLRV

7. DataIn orderassumptstandardvalues o

while this 10,6. Followireferencwell as Then, fowere ca

mary of theults sent by eir nominal

k = 2).

Table 4. Mas

e/mg OMET 2,54 U 2,52

2,87 MEC 2,50 AM 2,82

2,66 TRO 2,77

V 2,73

a consistencyr to check thtions to empds, the sumsof the 2 stat

he corresponSo, the data

ing [2] the ce values of their associa

for each partalculated acc

D

e reported rthe participvalues. The

ss errors e as re2 kg

U/mg e0,84 00,68 00,20 00,30 00,13 00,11 00,22 00,07 0

y and comphe consistencploy the so-

s of squares ctistic:

N

2

nding criticala were consid

weighted avthe compari

ated uncertai

ticipant and cording to 1:

NLRVeD

esults pants are expey are shown

eported by the 200g

e/mg U/mg0,312 0,0200,315 0,0240,315 0,0180,315 0,0300,317 0,0140,317 0,0280,312 0,0220,315 0,008

utation of (cy of the res-called Proccorrespondin

Nominal value 2 kg 200 g 50 g 1 g

200 mg

l value for 6dered consisverages werison, called Ninties.

standard, de

DUV 2;

pressed as thn in Table 4,

participants, an

50 gg e/mg U0 0,080 04 0,071 08 0,077 00 0,074 04 0,077 08 0,073 02 0,070 08 0,073 0

non-linked)sults, 2 testscedure A weng to the wh

2obs

8,6 0,3 4,6 1,4 1,0

6 degrees of stent in all thre calculatedNLRV. They

egrees of eq

uuNLRV

;22

he mass erro, as well as t

nd the correspo

U/mg e/ µg0,022 3,20,006 4,40,010 4,30,010 4,30,005 4,20,014 3,40,006 3,80,0029 3,9

) reference vs as proposeere considerhole set of re

freedom andhe cases. d and estab

y are shown i

quivalence D

n UDE

or e of each the associate

onding uncerta1 g

g U/ µg e3,0 2,6 2,0 3,0 1,0 1,4 1,4 0,6

values ed in [2] werred valid. Foesults yielde

d significanc

blished as thin the last ro

D and norma

DU

standard, taked uncertain

ainties U 200 mg

e/ µg U/ µg-0,2 1,30,4 1,6-0,4 1,20,0 2,00,0 0,7-0,3 1,4-0,2 0,6-0,1 0,4

re applied. Tor the differd the follow

ce level =

he (non-linkow of table 3

alized errors

(1)

4/13

ken nties

g

The rent

wing

0,1

ked) 3, as

s En

)

being e,The valHere, N

LACOMLATU INTI CESMECENAMNRC INMETR

Bilateracalculat

Tablabo

Dij

LAINCECENRIN

,u the resultsues of D and

NLRV is repr

Tabl

2 k

D / mg

MET -0,19 -0,21 0,14

C -0,23 M 0,09

-0,07 RO 0,04

al differenceted according

ble 6A.1.2 kg soratory in the leij / mg LATU

NTI ESMEC ENAM RC

NMETRO

s reported byd their assocresented as t

le 5A. Degrees

kg

UD / mg D / m

0,84 -0,000,68 0,000,19 0,000,29 0,000,11 0,000,08 0,000,21 -0,00

Table 5B.Va LACOMETLATU INTI CESMEC CENAM NRC INMETRO

es between g to (2). The

ijD

standard. Bilateeft column and

LACOMET -0,020 0,336 -0,040 0,281 0,124 0,230

y the participciated uncerthe zero line

s of equivalenc

200 g

mg UD / mg D

03 0,018 00 0,023 00 0,016 00 0,029 02 0,012 02 0,027 03 0,021

lues of En resp2 kg 2

T -0,2 --0,3 0,8 -0,8 0,8 -0,9 0,2 -

pairs of pey are shown

ji xx

eral differencesd xj refers to the

LATU

0,356-0,0200,3010,1440,250

pant. D, UD aainties are pand their as

ce respect to the

50 g

D / mg UD / m

0,007 0,022-0,002 0,0060,004 0,0100,001 0,0100,003 0,0050,000 0,014-0,004 0,005

pect to the non-200 g 50 g-0,2 0,30,0 -0,40,0 0,40,0 0,10,2 0,70,1 0,0-0,1 -0,8

articipants an in Tables 6

22 i

iij

u

DE

s Di j= xi - xj, we result reporte

INTI

-0,376-0,055-0,212-0,106

and En are shplotted in figusociated unc

e non-linked re

1 g

mg D / µg UD

2 -0,7 6 0,5 0 0,4 0 0,4 5 0,2 4 -0,5 5 -0,1

-linked referen1 g 2-0,2 0,2 0,2 0,1 0,3 -0,4 -0,1

and bilatera6A and 6B.

2j

ij

u

D

where xi refers ted by the labor

CESMEC

0,3210,1640,270

hown in Tabures 2A to 2certainty as s

eference value

200

D / µg D / µg

2,9 -0,1 2,5 0,5 1,9 -0,3 2,9 0,1 0,8 0,1 1,3 -0,2 1,3 -0,1

nce value 200 mg

-0,1 0,4 -0,2 0,1 0,2 -0,1 -0,2

al normalize

to the result reratory in the top

CENAM

-0,157 -0,051

bles 5A and 2E. In each psolid pink lin

0 mg

UD / µg

1,2 1,5 1,1 2,0 0,6 1,4 0,5

ed errors w

(2)

ported by the p row.

NRC

0,106

5/13

5B. plot, nes.

were

Tabthe

LAINTCECENRINM

Tablabo

LAINTCECENRINM

Tablabo

LAINTCECENRINM

Tabthe

LAINTCECENRINM

Tab

LAINTCECENRINM

ble 6A.2.200 glaboratory in thDij / mg L

ATU TI

ESMEC ENAM RC METRO

ble 6A.3.50 g soratory in the leDij / mg L

ATU TI

ESMEC ENAM RC METRO

ble 6A.4.1 g storatory in the leDij / µg L

ATU TI

ESMEC ENAM RC METRO

ble 6A.5.200mlaboratory in thDij / µg L

ATU TI

ESMEC ENAM RC METRO

ble 6B.1.2 kg s L

ATU TI

ESMEC ENAM RC METRO

g standard. Bilahe left column

LACOMET 0,003 0 0,003 0 0,003 0 0,004 9 0,005 0 0,0000

standard. Bilateeft column and

LACOMET L-0,009 0 -0,003 0 0-0,006 0 0-0,003 5 0-0,006 7 0-0,010 5 -0

andard. Bilatereft column and

LACOMET 1,2 1,1 1,1 1,0 0,2 0,6

g standard. Bilhe left column

LACOMET 0,6 -0,2 0,2 0,2 -0,1 0,0

standard. BilateLACOMET

0,0 0,4 0,0 0,3 0,1 0,3

ateral differencand xj refers to

LATU

0,000 0 0,000 0 0,001 9 0,002 0 -0,0030

eral differencesd xj refers to theLATU

0,006 0 0,003 0 -0,005 5 -0,002 3 -0,001 5 -

ral differences d xj refers to the

LATU

-0,1-0,1-0,2-1,0-0,6

lateral differenand xj refers to

LATU

-0,8-0,4-0,4-0,7-0,6

eral normalizedLATU

0,50,00,40,20,3

ces Di j= xi - xj

o the result repINTI

0,000 0 0,001 9 0,002 0 -0,0030

s Di j= xi - xj, we result reporte

INTI

-0,003 0 -0,000 5 -0,003 7 -0,007 5

Di j= xi - xj, we result reporte

INTI

0,0-0,1-0,9-0,5

nces Di j= xi - xo the result rep

INTI

0,40,40,10,2

d errors Eij accoINTI

-1,0-0,2-0,9-0,4

j, where xi refeported by the la

CESMEC

0,001 9 0,002 0 -0,0030

where xi refers ted by the labor

CESMEC

0,002 5 -0,000 7 -0,004 5

where xi refers ted by the labor

CESMEC

-0,1-0,9-0,5

xj, where xi refeported by the la

CESMEC

0,0-0,3-0,2

ording to (2) CESMEC

1,00,50,7

ers to the resulaboratory in the

CENAM

0,000 1 -0,0049

to the result reratory in the top

CENAM

-0,003 2 -0,007 0

to the result repratory in the top

CENAM

-0,8 -0,4

ers to the resulaboratory in the

CENAM

-0,3 -0,2

CENAM

-0,9 -0,2

lt reported by e top row.

NRC

-0,0050

ported by the p row.

NRC

-0,003 8

ported by the p row.

NRC

0,4

lt reported by e top row.

NRC

0,1

NRC

0,4

6/13

Tab

LAINTCECENRINM

Tab

LAINTCECENRINM

Tab

LAINTCECENRINM

Tab

LAINTCECENRINM

8. LinkIn orderCENAMTheir dcorrespostandard7 corres

ble 6B.2.200 g L

ATU TI

ESMEC ENAM RC METRO

ble 6B.3. 50 g s L

ATU TI

ESMEC ENAM RC METRO

ble 6B.4. 1 g st L

ATU TI

ESMEC ENAM RC METRO

ble 6B.5. 200 m L

ATU TI

ESMEC ENAM RC METRO

k to CCM ker to demonstM, INMETRdegrees of eqonding expads (called JX

spond to ave

standard. BilatLACOMET

0,1 0,1 0,1 0,2 0,1 0,0

standard. BilatLACOMET

-0,4 -0,1 -0,2 -0,2 -0,3 -0,5

tandard. BilaterLACOMET

0,3 0,3 0,3 0,3 0,1 0,2

mg standard. BLACOMET

0,3 -0,1 0,1 0,2 0,0 0,0

ey comparistrate equivalRO and NRCquivalence oanded uncertX and JY) weerage values

teral normalizeLATU

0,00,00,10,1-0,1

teral normalizeLATU

0,50,30,70,1-0,2

ral normalizedLATU

0,00,0-0,1-0,3-0,2

ilateral normalLATU

-0,4-0,2-0,2-0,3-0,4

sons ence, the preC have partobtained in ttaintiesU0) a

ere measuredof the respe

ed errors Eij acINTI

0,00,10,1-0,1

ed errors Eij accINTI

-0,20,0-0,2-0,6

d errors Eij accoINTI

0,0-0,1-0,4-0,2

lized errors Eij

INTI

0,20,30,10,1

esent compaticipated in this compar

are shown ind for each noctive results

cording to (2)CESMEC

0,10,0-0,1

cording to (2) CESMEC

0,20,0-0,4

ording to (2) CESMEC

0,0-0,3-0,2

according to (CESMEC

0,0-0,1-0,1

arison was linK5 and act

rison (that isn table 7. In ominal value for JX and J

CENAM

0,0 -0,2

CENAM

-0,2 -0,9

CENAM

-0,4 -0,2

2) CENAM

-0,2 -0,2

nked to CCMted as linkins, the differeCCM.M.M

e. Then, the JY.

NRC

-0,1

NRC

-0,3

NRC

0,2

NRC

0,1

M.M.M.K5 [ng laboratorencesD0and .K5 sets of tentries in ta

7/13

[3]. ries. the

two able

CENAMINMETRNRC

The refvalues L

where hINMET

For the considevalue is

The val

Then, thNLRV-LEnL are

These runcertaiassociat

Table2 k

D0 /mg M 0,019 RO 0,028

-0,084

ference valuLRV) were c

he symbol e rTRO and NR

calculationered as non-s

ues of LRV

T

LRV /uLRV /m

he degrees LRV to the dnow calcula

results are inties are ploted uncertain

e 7. Degrees ofkg

U0 / mg D0 /0,134 0,01,201 0,00,079 0,0

es of the cualculated as

CwLRV

refers to maRC respective

jw

s in (3), the-correlated.

and their as

Table 8. Key c2 kg

/mg 2,765/mg 0,054

of equivalendifferences D

ated as:

shown in totted in figunty as the so

f equivalence o200 g

/ mg U0 / mg000 0,010 003 0,120 000 0,009

urrent comp:

C,C De 0

ss error, andely. The wei

1

0

2

,jj Deu

e results of tThe standar

LRVu

sociated unc

comparison refg 200 g5 0,3174 0,007

nce stated iD, obtaining

nLE

table 9A anures 3A to 3Elid pink line

of the linking la50 g

D0 / mg U0 /0,001 0,00,002 0,00,007 0,0

arison, linke

IC

,II

wwwDew

0

d the subscripights wj (for j

1

2

0

2

0 ,jj Uu

the linking lrd uncertain

IC www 1

certainties ar

ference values, g 50 g7 0,0737 0,003

n table 4 wg linked diff

222 LRVx

L

uu

D

nd 9B. TheE, where LRes.

aboratories in C1

/ mg D0 / µg006 -0,1 030 0,6 011 0,7

ed to CCM.

N

NNI

wew

pts C, I andj = C, I or N

40

laboratories nty associate

Nw

re shown in t

linked to CCMg 1 g38 0,0036 0,000

were correcteferences DL.

V

e values ofV is represen

CCM.M.M-K5 g

U0 / µg D0

1,7 -01,5 01,7 0

.M.M.K5 (li

N,D 0

N refer to CN) were calcu

in both comed to the li

table 8.

M.M.MK5 g 200 m34 0,000 6 0,00

ed by subtra. Linked nor

f DL and thnted as the z

5 200 mg

/ µg U0 / µg0,4 0,8 0,2 1,4 0,3 2,0

inked refere

ENAM, ulated as:

(3)

mparisons winked refere

mg 0 1 0 4

acting the termalized err

heir associazero line and

8/13

nce

were nce

erm rors

ated d its

LACOMLATU INTI CESMECENAMNRC INMETR

Figure

Figure

2,5

2,75

3

e / mg

0,065

0,075

0,085

e / mg

2DL / mg

MET -0,225 -0,245 0,111

C -0,265 M 0,056

-0,101 RO 0,005

1A.Stability o

1C. Stability o

July 2009

July 2009

Ta kg

UDL/mg D0,85 -0,69 -0,23 -0,32 -0,17 0,15 0,24 -

Table 9B. V LACOMELATU INTI CESMEC CENAM NRC INMETRO

of the 2 kg stan

of the 50 g stan

June 2011

June 2011

able 9A. Linke200 g

DL / mg UDL/m-0,005 0,02-0,002 0,02-0,002 0,02-0,002 0,030,000 0,020,000 0,03-0,005 0,02

Values of En re2 kg

ET -0,3-0,40,5-0,80,3-0,7

O 0,0

ndard

ndard

July 2012

July 2012

ed degrees of e

50mg DL / mg25 0,006 28 -0,003 23 0,003 33 0,000 21 0,003 32 0,000 27 -0,004

espect to the lin200 g 50 -0,2 0,3-0,1 -0,3-0,1 0,3-0,1 0,00,0 0,30,0 0,0-0,2 -0,5

Figu

Fig

0,2

0,3

0,3

e / m

‐0,

0,

0

e / m

equivalence 0 g

UDL/mg D0,023 0,010 0,012 0,012 0,009 0,016 0,009

nked referenceg 1 g

3 -0,13 0,33 0,40 0,33 0,50 0,05 0,2

ure 1B. Stabili

gure 1D. Stabil

8

2

6

July 2009

mg

,005

0

,005

0,01

July 2009

mg

1 g DL / µg UDL /

-0,2 3,21,0 2,90,9 2,30,9 3,20,7 1,60,0 1,80,4 1,8

e value 200 mg

-0,20,2-0,40,0-0,1-0,3-0,3

ity of the 200 g

lity of the 1 g s

June 2011

9 June 2011

200µg DL / µg

2 -0,3 9 0,3 3 -0,5 2 -0,1 6 -0,1 8 -0,4 8 -0,3

g standard

standard

July 2012

1 July 2012

9/13

0 mg UDL / µg

1,5 1,8 1,4 2,2 1,1 1,6 1,0

Figur

Figuruncer

Figuruncer

‐0,001

0

0,001

e / mg

(e -

NL

RV

) / m

g(e

-NL

RV

) /

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evaluation o

t al; Report othe kilogram

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ser M., Fuji5 (2008), 14

of key compa

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