Mylar Precut Cir 2.5mi , Pack Of 500

Details:

XRF Thin-Film Sample Supports, Mylar*^ For retaining liquid, powdered, slurry or solid specimens in XRF Sample Cups for wavelength and energy dispersive spectrochemical analysis. Manufactured to very close tolerances (1-2% within a single package). Pre-cut circles. 2.5um gauge.