Description
Holmium Oxide Glass Filter Usable Range – 220 to 640nm (14 Peaks) Validity – 2 Years with NIST Traceable Certificate
Holmium Oxide Glass Filter, Validity – 2 Years
Holmium Oxide Glass Filter Usable Range – 220 to 640nm (14 Peaks) Validity – 2 Years with NIST Traceable Certificate
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Polystyrene NIR References Transmission & ATR, Validity -3 Years
These traceable reference materials can be used to qualify Mid IR - FTIR spectrophotometers for wavelength accuracy over an operating range of 540 cm-1 to 3125 cm-1 (3.2 µm to 18.5 µm). One version of the product can also be used to qualify the resolution of a Mid IR instrument as required by some pharmacopoeias and for the wavelength qualification of ATR (Attenuated Total Reflectance) measurements in the Mid-IR. Another version has additional certified peaks in the NIR region.2 Certified 38micron Polystyrene Films - Transmission & ATR
Polystyrene NIR References Validity -3 Years
These traceable reference materials can be used to qualify Mid IR - FTIR spectrophotometers for wavelength accuracy over an operating range of 540 cm-1 to 3125 cm-1 (3.2 µm to 18.5 µm). Polystyrene film (38 micron thick) mounted in a card holder for use as a wavenumber accuracy reference in the IR spectrum. Polystyrene Film (14 Peaks), Traceable to NIST SRM 1921b
Nicotinic Acid 12 mg/l
Nicotinic acid solutions with concentrations from
6 to 24 mg/l in dilute (0.1 M) hydrochloric acid, permanently heat sealed in high quality far UV
quartz cells. Supplied with a 0.1 M hydrochloric acid blank. CRM, Concentration 6,12,18,24mg/l are also available
Potassium Dichromate 600 mg/l Validity –2 Years
Potassium Dichromate cover wavelength 430nm
Potassium Dichromate 60 mg/l. Validity –2 Years
Potassium dichromate in 0.001 M perchloric acid is permanently heat sealed by heat fusion into 10 mm UV-quality quartz cells. Solutions are prepared from solid potassium dichromate, NIST SRM 935a.Potassium Dichromate cover wavelength (235,257,313 & 350nm)