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RoHS Screening With Niton XLt

Niton is currently marketing a portable X-Ray Fluorescence (XRF) product aimed at screening plastics for green compliance. The XLt will detect the presence of Cd, Cr, Hg, Pb, and Br in a variety of materials. The chief target is plastic parts. Plastics might contain these metals as stabilizers, or they could be treated or impregnated with brominated flame retardants.

XLt

The XLt, sold as the XLt 794, is a hand-held device. You point it at a sample, activate it, and in seconds you know if any of the banned elements are present. Because the instrument uses x-rays to take measurements, radiation safety and operational training are required. The XLt itself is very easy to use. It weighs 3 pounds and operates for 4-6 hours on a battery charge. It is similar in size and weight to a cordless drill, but looks more like a science fiction energy weapon.

XRF is an excellent tool for green compliance screening. The procedure is simple. Take a reading of the sample with the XLt. If banned materials are not detected, then the sample is free of them. The parts can be cleared as compliant. If banned materials are detected, then you begin your non-compliance process. This could include contacting the supplier to determine the problem, sampling stock and possibly purging it, sending the part out for detailed chemical analysis, and halting production.

Niton makes a wide range of other portable products for various purposes. Note, the first source listed is the primary source.

  XLp 300 Xli/XLp/XLt 500
Purpose Detecting lead in paint, soil, dust or air Rapid testing of metals
Source(s) 109Cd 40mCi InfinitonT
109Cd 50mCi
55Fe 40mCi
241Am 30mCi
Elements detected (InfinitonT source) Pb Au, Ag, Pt, Rh, Ru, Ir, Pd, Cu, Zn, Ni, Co, Fe
Batteries Rechargeable Li-ion, 10-14 hr life, 3 hr recharge Rechargeable Li-ion, 4-6 hr life, <2 hr recharge
X-ray detector Solid state, thermo-electrically cooled Solid state, thermo-electrically cooled

 

  XLi/XLp 700 XLt 700 Xli/XLp 800 XLt 800
Purpose Soil and environmental testing Soil and environmental testing Analysis of metals Analysis of metals
Source(s) InfinitonT
109Cd 50mCi
55Fe 40mCi
241Am 30mCi
40 kV 50 uA miniature X-ray tube InfinitonT
109Cd 50mCi
55Fe 40mCi
241Am 30mCi
35 kV 1.0 W miniature X-ray tube
Elements detected (InfinitonT source) Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Rb, Sr, Zr, Mo, Ag, Cd, Sn, Sb, Ba, Hg, Pb Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Rb, Sr, Zr, Mo, Ag, Cd, Sn, Sb, Ba, Hg, Pb Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb(Cb), Mo, Hf, Ta, Re, W, Pb, Bi, Sn, Pd, Ag Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Zr, Nb(Cb), Mo, Hf, ta, Re, W, Pb, Bi, + Sn & Ag at concentrations >2%
Batteries Rechargeable Li-ion, 4-6 hr life, <2 hr recharge Rechargeable Li-ion, 4-6 hr life, <2 hr recharge Rechargeable Li-ion, 4-6 hr life, <2 hr recharge Rechargeable Li-ion, 4-6 hr life, <2 hr recharge
X-ray detector Solid state, thermo-electrically cooled Solid state, thermo-electrically cooled Solid state, thermo-electrically cooled Solid state, thermo-electrically cooled

 

Weights:
Xli 1.7 lbs, 0.8 kg
XLp/XLt 3.0 lbs, 1.4 kg

Related articles:
XRF Analyzer Directory

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