Certificate of Accreditation

PERRY JOHNSON LABORATORY ACCREDITATION, INC. 705.00 Certificate of Accreditation Perry Johnson Laboratory Accreditation, Inc., has assessed the Laboratory of: (Hereinafter called the Organization) and hereby declares that Organization is accredited in accordance with the recognized International Standard: ISO/IEC 17025:2005 This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (as outlined by the joint ISO-ILAC-IAF Communiqué dated January 2009): Optical, Frequency, Mechanical, Force, Weighing Device, Dimensional, Thermodynamic and Electrical Calibration (As detailed in the supplement) Such testing and/or calibration services shall only be offered at or from the address given above. This Accreditation is granted subject to the system rules governing the Accreditation referred to above, and the Organization hereby covenants with the Accreditation body's duty to observe and comply with the said rules. For PJLA: Tracy Szerszen President/Operations Manager The validity of this certificate is mandated through ongoing surveillance. Perry Johnson Laboratory Accreditation, Inc. (PJLA) 755 W. Big Beaver, Suite 1325 Troy, Michigan 48084 Initial Accreditation Date: December 17, 2004 Accreditation No: 46962 Issue Date: January 19, 2011 Certificate No: L11-33 Expiration Date: December 17, 2015 Page No: Page 1 of 5

Optical ρ (λ) Spectral Reflectance Color Values τ (λ) Transmittance α (λ) Absorbance λ Wavelength ρ (e): Gloss/Specular Reflectance ρ (360 nm to 740 nm): 2.5 % of reading 0 % to 100 % X: 0.3 to 95.0 0.5 Y: 0.3 to 100.0 0.5 Z: 0.3 to 100.0 0.5 CIE L: 0.0 to 100.0 CIE a* -28.0 to 36.0 CIE b* -26.0 to 73.0 τ: 1.0 % to 95 % 0.10 % of reading α (λ): 0.03 to 2.2 λ : 230 nm to 700 nm ρ (e): 20 to 92.1 ρ (e): 60 to 94.9 ρ (e): 85 to 99.8 0.05 % of reading 0.07 nm E v Illuminance 0 lux to 6 000 lux 1.3 % of reading E v Light Color 50 K to 10 000 K 15 K Cermam Research Tiles CENAM Glass Filters, Holmium Oxide Ceram Reasearch Gloss and Semi Gloss STD Minolta, Chromameter DC-xy E (v) Light Meters 600 lux to 6 000 lux 2.0 % of reading Minolta, Chromameter DC-xy E (λ) Spectral Radiance Time and Frequency 340/420 nm 0 W/m 2 /nm to 2.0 W/m 2 /nm 5 % of reading Q-Panel Radiometer, CR20 Frequency of Rotation 6 rpm to 24 000 rpm 2 % of reading Tachometer Shimpo DT-205L Issued: 1/11 This supplement is in conjunction with certificate # L11-33 Page 2 of 5

Mechanical Pressure Gauge -14.0 psi to 0 psi 10 psi to 100 psi 100 psi to 1 000 psi Dynamic Viscosity 0.1 mpa.s to 30 000 mpa.s 2 % of reading Kinematic Viscosity Ford 26 mm 2 /s to 367 mm 2 /s (Flow time 20 s to 100 s) Ford No. 2 mm 2 /s = 1.44 (t-18.0) Ford No. 3 mm 2 /s = 2.31 (t-6.58) Ford No. 4 mm 2 /s = 3.85 (t-4.49) Ford No. 5 mm 2 /s = 12.1 (t-2.0) Zahn 20 mm 2 /s to 1 400 mm 2 /s (Flow time 20 s to 80 s) Zahn 2 mm 2 /s = 3.5 (t-14.0) Zahn 3 mm 2 /s = 11.7 (t-7.5) Zahn 4 mm 2 /s = 14.8 (t-5.0) Zahn 5 mm 2 /s = 23 (t) Micropipettes 100 µl to 1 000 µl 3.2 µl Burette and Pipettes 1 ml to 50 ml 3.8 µl Flask 0.7 % of reading Omega DPG8000-100 DPG000-VAC 2.5 % of reading Cannon, Brookfield STD Analytical Balance, and HR-200 100 ml to 4 L 0.65 ml Precision Balance and HX-6000 4 L to 20 L 6 ml Scale, Mettler Toledo Mass, Force, and Weighing Devices Scales and Balances (AND SPECIFICATION WHERE 1.0 g to 200 g (Res. = 0.1 mg) CAPABILITY EXPRESSED AS AN UNCERTAINTY (±) (2.55 x 10-1 + 1.38 x 10-7 Wt) mg OIML F1 Analytical Weight Set 1 g to 200 g Issued: 1/11 This supplement is in conjunction with certificate # L11-33 Page 3 of 5

Mass, Force, and Weighing Devices (AND SPECIFICATION WHERE AS AN UNCERTAINTY (±) Scales and Balances 200 g to 6 kg (1.10 x 10-2 + 3.36 x 10-6 Wt) g OIML F2 (Res. = 0.01 g) 10 kg to 200 kg (Res. = 1 g) (8.00 x 10-4 + 5.43 x 10-5 Wt) kg Force 900 N to 8 826 N 0.5 % of reading Com-Ten Load Cell Mass Density 10 g/cm 3 to 100 g/cm 3 2 % of reading Balance and HR-200 210 g x 0.1 mg Dimensional Micrometers 0.5 mm to 101.6 mm 10 µm Gage Blocks Grade 2 (0.1 in to 4 in) (393.7 µin) Calipers 0.5 mm to 304.8 mm (0.1 in to 12 in) 45 µm (1 777 µin) Measuring Tape 0 m to 5 m 1 mm Starrett Chrome Rule Lufkin Measure Tape Thermodynamic Glass Thermometers 30 C to 400 C 1.0 C Thermocouple Type J 30 C to 400 C 1.0 C Thermocouple Type B Thermocouple Type K Thermocouple Type S Issued: 1/11 This supplement is in conjunction with certificate # L11-33 Page 4 of 5

Thermodynamic Thermocouple Type T Thermocouple Type R Thermocouple Type U Thermocouple Type N Thermocouple Type E RTD PT-100 Temperature Controllers 0 C to 400 C 1.0 C 400 ºC to 850 ºC 3.0 ºC Furnace 0 C to 400 ºC 1.0 C 400 ºC to 1 200 C 3.0 ºC 1 400 C Furnace 1. The CMC (Calibration and Measurement Capability) stated for calibrations included on this scope of accreditation represent the smallest measurement uncertainties attainable by the laboratory when performing a more or less routine calibration of a nearly ideal device under nearly ideal conditions. It is expressed at a confidence level of 95 % using a coverage factor k (usually equal to 2). The actual measurement uncertainty associated with a specific calibration performed by the laboratory will typically be larger than the CMC for the same calibration since capability and performance of the device being calibrated and the conditions related to the calibration may reasonably be expected to deviate from ideal to some degree. 2. When calibrations are performed at customer locations the resulting measurement uncertainty associated with the calibration will typically be larger than the CMC stated on this scope of accreditation. This is due in large part to variation of environmental conditions at customer facilities, the effects of transport on any standards or equipment taken to customer sites and the resolution and repeatability unique to the device being calibrated. 3. Remarks: This column shall include pertinent information about the calibration of the Measured Instrument or parameter. The information should include the type of standards used and any pertinent information about the measurement method. This column is not to be used for commercial advertisement of laboratory services. 4. The term L represents length in inches or millimeters as appropriate to the uncertainty statement. 5. The term Wt represents weight in pounds or grams (including SI multiple and submultiples units) appropriate to the uncertainty statement. Issued: 1/11 This supplement is in conjunction with certificate # L11-33 Page 5 of 5