Attachment 2 XRF Technical Evaluation-FY23 rev 25Jul2023.pdf

ATTACHMENT 2 – Technical Evaluation Handheld XRF Analyzer

Attachment 2

Technical Evaluation: Handheld X-ray Fluorescence

(XRF) Analyzer

The XRF analyzer will be evaluated and performance validated based on the following three (3) factors (A, B, and C):

FACTOR A: The XRF will be evaluated based on measurement results obtained using the following reference standard materials:

Subfactor 1: ERM®-EC681k Polyethylene (high level)

Subfactor 2: ERM®-EC680k Polyethylene (low level)

Subfactor 3: NIST Standard Reference Material® 2861 PVC

Subfactor 4: Restriction of Hazardous Substances (RoHS) 2-3 Glass Standard

Subfactor 5: NIST Standard Reference Material® 2569 Level 3 Lead Paint Films

Subfactor 6: NIST Standard Reference Material® 1412a Glass Standard.

Measurement results shall be within the following low/high limit specifications outlined in the tables below for each of the reference standard materials:

Subfactor 1: ERM®-EC681k Polyethylene (high level) Standard

ERM®-EC681k

Element Certified Value (ppm or mg/kg)

Low Limit (ppm or mg/kg)

High Limit (ppm or mg/kg)

Lead (Pb) 98 74 122

Arsenic (As) 29 15 44

Cadmium (Cd) 137 96 178

Chromium (Cr) 100 50 150

Measurement time will be a minimum of 60 seconds on optimum filter setting configuration for each element

Subfactor 2: ERM®-EC680k Polyethylene (low level) Standard

ERM®-EC680k

Element Certified Value (ppm or mg/kg)

Low Limit (ppm or mg/kg)

High Limit (ppm or mg/kg)

Lead (Pb) 13.6 6 20 configuration for each element

Subfactor 3: NIST Standard Reference Material® 2861 PVC

NIST Standard Reference Material® 2861

Element Certified Value (ppm or mg/kg)

Low Limit (ppm or mg/kg)

High Limit (ppm or mg/kg)

Lead (Pb) 88.3 70 106 configuration

Subfactor 4: RoHS 2-3 Glass Standard

RoHS 2-3 Glass Standard

Element Certified Value (ppm or mg/kg)

Low Limit (ppm or mg/kg)

High Limit (ppm or mg/kg)

Lead (Pb) 1000 Must have a detectable measurement reading >100ppm.

configuration

Subfactor 5: NIST Standard Reference Material® 2569 Level 3 Lead Paint Films

NIST Standard Reference Material® 2569 Level 3 Lead Paint Films

Element Certified Value (ppm or mg/kg)

Low Limit (ppm or mg/kg)

High Limit (ppm or mg/kg)

Lead (Pb) 314 Must have a detectable measurement reading.

Measurement time will be 120 seconds on optimum filter setting configuration

Subfactor 6: NIST Standard Reference Material® 1412a Glass Standard

NIST Standard Reference Material® 1412a Glass Standard

Element Certified Value (ppm or mg/kg)

Low Limit (ppm or mg/kg)

High Limit (ppm or mg/kg)

Aluminum (Al) 46,300 Must have a detectable measurement reading >10,000ppm.

Magnesium (Mg) 23,300 Must have a detectable measurement reading >5,000ppm.

configuration. Up to 300 seconds maximum scan time allowed.

FACTOR B: Evaluate the use of the “test all” mode or equivalent for sample analysis.

The “test all” mode or equivalent will automatically select the mode for the user when the user is uncertain of the appropriate mode to choose. The “test all” mode or equivalent will determine the sample matrix (i.e. metal (or alloy), plastic (or polymer), PVC plastic

(or PVC polymer)) and apply the appropriate algorithms for elemental detection and quantification. The following reference standards will be used to evaluate:

Subfactor 1: ERM®-EC681k Polyethylene (high level)

Subfactor 2: NIST Standard Reference Material® 2861 PVC

Subfactor 3: MBH Analytical Tin Check Sample (180-606)

Subfactor 4: XOS Coated Reference Sample 900071-08 ZINC

The “test all” mode or equivalent will correctly identify the sample matrix and shall provide measurement results within the following low/high limit specifications outlined in the tables below for each of the reference standard materials:

Subfactor 1: ERM®-EC681k Polyethylene (high level) Standard

ERM®-EC681k

Element Sample Matrix

ID

Certified Value (ppm or mg/kg)

Low Limit (ppm or mg/kg)

High Limit (ppm or mg/kg)

Lead (Pb)

Plastic/Polymer

98 74 122

Arsenic (As) 29 15 44

Cadmium (Cd) 137 96 178

Chromium (Cr) 100 50 150

Measurement time will be a minimum of 60 seconds on optimum filter setting configuration for each element

Subfactor 2: NIST Standard Reference Material® 2861 PVC

NIST Standard Reference Material® 2861

Element Sample Matrix ID

Certified Value (ppm or mg/kg)

Low Limit (ppm or mg/kg)

High Limit (ppm or mg/kg)

Lead (Pb) PVC Plastic/ PVC Polymer

88.3 70 106 filter setting configuration

Subfactor 3: MBH Analytical Tin Check Sample (180-606)

MBH Analytical Tin Check Sample (180-606)

Element Sample Matrix ID

Composition

Low Limit (ppm or mg/kg)

High Limit (ppm or mg/kg)

Lead (Pb) Metal/Alloy 0.13 Must have a detectable measurement reading >100ppm.

Subfactor 4: XOS Coated Reference Sample 900071-08 ZINC

XOS Coated Reference Sample 900071-08 ZINC

Element Sample Matrix ID

Certified Value (ppm or mg/kg)

Low Limit (ppm or mg/kg)

High Limit (ppm or mg/kg)

Lead (Pb) Record 287 Must have a detectable measurement reading >90ppm

(0.0090%)

Measurement time will be a minimum of 120 seconds on optimum

FACTOR C: Weight of XRF analyzer (with battery):

No more than 3lbs.