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Niton XLp 300, 9/24/2004, ed. 1 Performance Characteristic Sheet EFFECTIVE DATE: September 24,2004 EDITION NO.:1 MANUFACTURER AND MODEL: Make: Niton LLC Tested Model: XLp 300 Source: 109Cd Note: This PCS is also applicable to the equivalent model variations indicated below,for the Lead-in-Paint K+L variable reading time mode, in the XLi and XLp series: XLi 300A,XLi 301A,XLi 302A and XLi 303A. XLp 300A,XLp 301A,XLp 302A and XLp 303A. XLi 700A,XLi 701A,XLi 702A and XLi 703A. XLp 700A,XLp 701A,XLp 702A,and XLp 703A. Note: The XLi and XLp versions refer to the shape of the handle part of the instrument. The differences in the model numbers reflect other modes available, in addition to Lead-in- Paint modes. The manufacturer states that specifications for these instruments are identical for the source, detector, and detector electronics relative to the Lead-in-Paint mode. FIELD OPERATION GUIDANCE OPERATING PARAMETERS: Lead-in-Paint K+L variable reading time mode, XRF CALIBRATION CHECK LIMITS: 0.8 to 1.2 mg/cm2(inclusive) The calibration of the XRF instrument should be checked using the paint film nearest 1.0 mg/cm2 in the NIST Standard Reference Material(SRM)used (e.g.,for NIST SRM 2579,use the 1.02 mg/cm2 film). If readings are outside the acceptable calibration check range,follow the manufacturer's instructions to bring the instruments into control before XRF testing proceeds. SUBSTRATE CORRECTION: For XRF results using Lead-in-Paint K+L variable reading time mode,substrate correction is not needed for: Brick, Concrete, Drywall, Metal, Plaster,and Wood INCONCLUSIVE RANGE OR THRESHOLD: K+L MODE SUBSTRATE THRESHOLD READING DESCRIPTION (mg/cm2) Results not corrected for substrate bias on any Brick 1.0 substrate Concrete 1.0 Drywall 1.0 Metal 1.0 Plaster 1.0 Wood 1.0 1 of 3