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S7ATtS DEPARTMENT OF COMMERCE
WASHING: TOE
AGH ONG
Fiational Burear of Mtandarde
\C METER URON Nb
U.BLC,
& 48
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Certiltcate
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wie oh
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Thie tape ba bern compared with the statdaris o tht Uteied Bate uaa ik dura
tension of 15 kllogrems
The interval (6 to SO mucere baw the fovhor-tmg somethin: @ PE
ender the conditions given below
and $0 mete: points
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terminal marks
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Probable error does not exceed | partin 1, 500,07.
The values for tha lengths were obtained from measurement: att
reducing to 25 °C the thermal expanson of #0 2 f
The weight pe: meter > Lia Lape
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KURT 2.1/1 14455
Tee completed
Cotober
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Le
aewie ¥, Judecr
hiet Lergtr Section Sammon,
UNTTES vans Dearie
Metrology
66
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or oceta ecd
Fiational Bureau of Mtandards
Certificae
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and 10 meter ponte, with the 13.5: and 37 5 meter
Te wget for the engine were obtained (rom measurements made at 2246 €., and ip
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cw rn parsons wert Made on the seetior of the lines near the end on the edige of the
«weed ovh gama. a of ¥ or dots near (he graduation
Ve vk ues for Une lengths ace not in error by more then l partia
900,000
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made
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previoualy Oo: er thiam
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ve
States Const @ Geodetio Burvey,
Washing tor
muog-ama he interval 0 to WH meters) bee the following lengthe at 25 °C.
gt ons gen now
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wad tt Smee
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Thee comparisons were made on the wection of the iowa mame he mt x}
tape marked with u emal) ‘a ar “vy” of dots aser the graduation
‘Tha values for the lengths are not in error by more thar
ope
a
centigrade was used
ve
(ba Mas oper compared with she standards of the United States under s horiaomtal
Ve
S28
t
Bupported at the 0.1275 Qs $0 and 80m of pose
point: 6 inches above the plane of the 9 and $0 mere: suppers
Thermometer
ALLOY TAPE
oe Reaeats
rere
Jnited States Ooast
Waahingtor
Supported et the 6018)
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National Bureau of Standards
Certificate
c Southwest Reg ion
Archives
ou
Reproduced from ¢ he hold in re 5s of the National
UNITED Svs we DapamrsenT
a ptare
Remromenesd BOL iy
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Sivistion.
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