TY  - ICOMM
AU  - Dean Ripple
AU  - Anatoly Pokhodun
AU  - Peter Steur
AU  - Gregory Strouse
C1  - http://www.bipm.org
C2  - website of the International Bureau of Weights and Measures
DA  - 2008-08-18
LA  - en
PB  - website of the International Bureau of Weights and Measures
PY  - 2008
TI  - Recommended List of Common Impurities for Metallic Fixed-point Materials of the ITS-90
UR  - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=832299
ER  -