ISO/IEC 17043:2010

Proficiency Testing Program for Multiple-Laboratory/ Multiple Instrument Data Validation of Petroleum Products.

PITTCON 2012 Roland St. Germain* Mike Travers Tim Alavosus, Ph.D.

13 March 2012

VHG Labs' Original ProficiencyTesting Program (PTP)

VHG Labs has developed a Proficiency Testing Program (PTP) to measure:

Elements in oil by ICP or RDEKinematic ViscosityElements in Lube oil by XRFSulfur in various matricesPB Lead in Isooctane

Proficiency Testing

Program

(PTP)

What is Proficiency Testing?

Proficiency Testing is a regular evaluation of your laboratory instrumentation as compared to independent certified reference materials.

Many laboratories rely on their own instrument calibration techniques as their sole method of calibration verification.

Why Use Proficiency Testing?

Specific Benefits of Regular Proficiency Testing:

1. Confirm Instrument Performance

2. Demonstrate Competitive Advantage

3. Provide Greater Confidence Levels for Your Lab’s Customers

4. Shift/Operator Verification

There can often exist a bias from one instrument to another of the same general type based upon:

design (i.e., different mfg or model)operating parametersmethodologyconditions usedenvironmental factors.

Why Use Proficiency Testing?

It is useful to have a program that regularly determines the relative correlation of one or more instruments within the same laboratory facility or different locations.

Why Use the PTP?

More about Proficiency Testing

Historically, Proficiency Testing often used a Round-Robin approach.

– This method is painful and tedious.– It takes so long, it is a poor method of

instrument evaluation, as so many parameters are likely to change over time.

– It does not benefit from the use of modern technology and instant performance evaluation

How the original VHG PTP Works:

You order the type of test(s) you want

PTP is sent directly to your lab with login password

You run the samples at your convenience, whenever you want

Enter results into www.vhglabs.com

You Receive the results IMMEDIATELY!

Proficiency Testing Program (PTP) from VHG Labs

VHG Labs’ PTP provides a method for validation of ICP, XRF and viscosity.

The VHG Labs PTP is currently the only program of its kind to provide an instant response to submitted values, with convenient color-coded pass/fail indications in green (pass), yellow (borderline), and red (fail).

In case you asked…

Currently Assigned Values for ICP Metallo-organic PTP test

For all certified values > 20 ppm:Green = within +/- 10%Yellow = within +/-15%Red > 15%

< 20 ppm:Green = within +/- 1ppmYellow = within +/-2ppmRed > 2ppm

These values may be customized as an added-value option.Color feature not available for Viscosity tests.

The PTP User Interface

ALL ONLINE:

Simply type in your results…

Then:100

105

112

121

102

100

The PTP User Interface

Validation is automatic and instantaneous

In ICP analysis, there are several common possible sources of error:

– Sample Preparation

– Sample Introduction Sipper Probe Pump Tubing Nebulizer Torch: O-rings, fittings,

and connections -Possible air leaks

How Does the PTP Help?

VHG NEW ISO 17043 PTP

The new PTP is designed to provide laboratories with a method of monitoring their analytical performance measured against samples that are ISO/IEC 17043 compliant.

ISO/IEC 17043:2010

VHG Labs PTP incorporates the requirements for 17043:

Normalized Error (En).

(Note: 17043 response is not

instantaneous)

ISO/IEC 17043:2010

Takes performance testing further Provides guidelines for error ranges These are based on calculations of

laboratory uncertainties These uncertainties are called

“Normalized Error”, or En You can calculate this easily

ISO 17043: Normalized Error

En is “error, normalized” and is calculated as:

En = (xlab – xVHG )/√(U2lab + U2

VHG )

Where: xlab is your analytical result

xVHG is the VHG Certified Value Ulab is the expanded uncertainty that you reportedUVHG is the expanded uncertainty of the VHG

Certified Value (95% coverage)

Basis for Pass/Fail Criteria

Pass = -1< En <+1 (Green)

Fail = En <-1 or En > +1 (Red)

ISO/IEC 17025 PT

ISO Registrars strongly recommend the use of ISO 17043 PTP when performing required Proficiency Tests for ISO/IEC 17025 accreditation.

User interface

Entering Your Data

Entering Your Data

Specific Benefits of Regular Proficiency Testing:

1. Confirm Instrument Performance

2. Shift/Operator Verification

3. Demonstrate Competitive Advantage

4. Provide Greater Confidence Levels

Thank You!

For more information, please contact:

Roland St. GermainVHG Labs276 Abby Rd. Manchester, NH 03053(+1) 603.622.7660roland@vhglabs.com BOOTH 3566