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PB95226866

Publication Date	1995
Personal Author	Gupta, D.; Wang, L.; Hanssen, L. M.; Hsia, J. J.; Datla, R. U.
Page Count	58
Abstract	Standard Reference Material (SRM) 1921 is a matte finish polystyrene film and is intended for use in calibrating the wavelength scale of spectrophotometers in the infrared (IR) spectral region from 545.49 cm exp(-1) to 3082.19 cm exp(-1) (18.332 micrometers to 3.2445 micrometers). Thirteen absorption peak positions obtained using a center-of-gravity method are certified. The expanded uncertainty value associated with these peak values are between 0.06 cm exp(-1) and 0.66 cm exp(-1), except for 1.84 at 2850.13 cm exp(-1) and 12.29 at 545.49 cm exp(-1). This publication describes the IR spectrophotometer, instrument calibration, SRM material, measurement procedure, calibration of polystyrene films, and uncertainty determination.
Keywords	Polystyrene Fourier transformation Infrared spectrophotometers Chemical analysis Calibration standards Optical measuring instruments Standardization Wavelengths
Source Agency	National Institute of Standards and Technology
NTIS Subject Category	71O - Plastics 46 - Physics 99A - Analytical Chemistry 99F - Physical & Theoretical Chemistry
Corporate Authors	National Inst. of Standards and Technology (PL), Gaithersburg, MD. Radiometric Physics Div.
Supplemental Notes	Also available from Supt. of Docs.
Document Type	Technical Report
Title Note	Special pub.
NTIS Issue Number	199517

Standard Reference Materials: Polystyrene Films for Calibrating the Wavelength Scale of Infrared Spectrophotometers - SRM 1921.

Standard Reference Materials: Polystyrene Films for Calibrating the Wavelength Scale of Infrared Spectrophotometers - SRM 1921.
PB95226866

Publication Date	1995
Personal Author	Gupta, D.; Wang, L.; Hanssen, L. M.; Hsia, J. J.; Datla, R. U.
Page Count	58
Abstract	Standard Reference Material (SRM) 1921 is a matte finish polystyrene film and is intended for use in calibrating the wavelength scale of spectrophotometers in the infrared (IR) spectral region from 545.49 cm exp(-1) to 3082.19 cm exp(-1) (18.332 micrometers to 3.2445 micrometers). Thirteen absorption peak positions obtained using a center-of-gravity method are certified. The expanded uncertainty value associated with these peak values are between 0.06 cm exp(-1) and 0.66 cm exp(-1), except for 1.84 at 2850.13 cm exp(-1) and 12.29 at 545.49 cm exp(-1). This publication describes the IR spectrophotometer, instrument calibration, SRM material, measurement procedure, calibration of polystyrene films, and uncertainty determination.
Keywords	Polystyrene Fourier transformation Infrared spectrophotometers Chemical analysis Calibration standards Optical measuring instruments Standardization Wavelengths
Source Agency	National Institute of Standards and Technology
NTIS Subject Category	71O - Plastics 46 - Physics 99A - Analytical Chemistry 99F - Physical & Theoretical Chemistry
Corporate Authors	National Inst. of Standards and Technology (PL), Gaithersburg, MD. Radiometric Physics Div.
Supplemental Notes	Also available from Supt. of Docs.
Document Type	Technical Report
Title Note	Special pub.
NTIS Issue Number	199517