PERRY JOHNSON LABORATORY ACCREDITATION, INC. 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): and Quantitative Analysis of Petroleum, Coal, Biomass and Prilled Sulfur (As detailed in the supplement) Accreditation claims for such testing and/or calibration services shall only be made from addresses referenced within this certificate. 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: Initial Accreditation Date: Issue Date: Expiration Date: August 9, 2011 October 11, 2017 January 31, 2020 Tracy Szerszen President/Operations Manager Perry Johnson Laboratory Accreditation, Inc. (PJLA) 755 W. Big Beaver, Suite 1325 Troy, Michigan 48084 Accreditation No: Certificate No: 59388 L17-444 The validity of this certificate is maintained through ongoing assessments based on a continuous accreditation cycle. The validity of this certificate should be confirmed through the PJLA website: www.pjlabs.com Page 1 of 5
Coal Themogravimetric Analysis of Ash, Fixed Carbon, Moisture, and Volatile Matter ASTM D7582 Ash: 0.01 % to 100 % Moisture: 0.01 % to 95 % Volatile Matter 0.01 % to 20 % Fixed Carbon Calculated from Above Ash ASTM D4422 0.001 % to 100 % Bulk Density AJE Method 29 N/A Calcined ASTM D6969 Preparation Calcined ASTM D6970 Calorific Value ASTM D5865 8 000 BTU to 16 000 BTU Carbon ASTM D5373 0.002 % to 100 % D.L. = 0.002 % Fusibility of Coal ASTM D1857 Ambient to 1500 C and Ash Green ASTM D346 N/A ASTM D2234 / ASTM D2234M Hardgrove ASTM D5003 20 HGI to 120 HGI Grindability Hydrogen ASTM D5373 0.02 % to 10 % D.L. = 0.02 % Issue: 10/2017 This supplement is in conjunction with certificate #L17-444 Page 2 of 5
Major and Minor Elements in Coal ASTM D6349 Al: 0.56 mg/kg Ca: 0.004 mg/kg Fe: 0.09 mg/kg Na: 1.38 mg/kg Ni: 0.03 mg/kg Si: 0.32 mg/kg V: 0.34 mg/kg As: 1.06 ppm Be: 0.006 ppm Cd: 0.08 ppm Co: 0.14 ppm Cr: 0.14 ppm Cu: 0.12 ppm Mn: 0.6 ppm Mo: 0.16 ppm Ni: 0.3 ppm Pb: 0.84 ppm Sb: 0.64 ppm V: 0.16 ppm Zn: 0.04 ppm Mercury ASTM D6722 0.017 ppm to 0.586 ppm Mercury AJE Method 44 N/A Porosimetry Metals by ICP ASTM D5600 Al: 0.56 mg/kg Ca: 0.004 mg/kg Fe: 0.09 mg/kg Na: 1.38 mg/kg Ni: 0.03 mg/kg Si: 0.32 mg/kg V: 0.34 mg/kg Moisture ASTM D4931 0.01 % to 95 % Nitrogen ASTM D5373 0.02 % to 4 % D.L. = 0.02 % Real Density ASTM D2638 1.7 kg/l to 2.9 kg/l (1 kg/l = 1 g/cc) Sieve ASTM D5709 < 0.05 % to 100 % (Function of Screen Size) Solvent Extractable ASTM D4930 AJE Method 45 0.01 % to 70 % Sulfur by Infrared Detection ASTM D4239 0.001 % to 20 % Issue: 10/2017 This supplement is in conjunction with certificate #L17-444 Page 3 of 5
Trace Metals ASTM D6357 As: 1.06 ppm Be: 0.006 ppm Cd: 0.08 ppm Co: 0.14 ppm Cr: 0.14 ppm Cu: 0.12 ppm Mn: 0.6 ppm Mo: 0.16 ppm Ni: 0.3 ppm Pb: 0.84 ppm Sb: 0.64 ppm V: 0.16 ppm Zn: 0.04 ppm Vibrated Bulk Density ASTM D4292 0.65 kg/l to 1 kg/l (1 kg/l = 1 g/cc) Volatile Matter ASTM D6374 0.01 % to 20 % Prilled Sulfur Acidity ASTM D4569 AFPC XIV-2 ISO 3704 Arsenic, Cadmium, Chromium, Lead, Selenium, Tellurium ICP AJE 41 Ash AFPC X1-5 ISO 3425 Carbon AFPC X1-5 Moisture Purity AFPC XIV-5 ISO 3426 AJE 52 AFPC XV6 D.L. = 0.1 mg/l 0.001 % to 100 % 0.01 % to 95 % Calculated from Carbon, Ash and Acidity Issue: 10/2017 This supplement is in conjunction with certificate #L17-444 Page 4 of 5
Ash ASTM D4422 0.001 % to 100 % Bulk Density AJE Method 29 N/A Calcined Preparation Calcined Green ASTM D6969 ASTM D6970 ASTM D346 ASTM D2234/D2234M ASTM D5003 Hardgrove 20 HGI to 120 HGI Grindability Moisture ASTM D4931 0.03 % to 95 % Sieve ASTM D5709 < 0.05 % to 100 % (Function of Screen Size) Sulfur by Infrared Detection ASTM D4239 0.001 % to 20 % Volatile Matter ASTM D6374 0.03 % to 20 % 1. The presence of a superscript F means that the laboratory performs testing of the indicated parameter at its fixed location. Example: Outside Micrometer F would mean that the laboratory performs this testing at its fixed location. Issue: 10/2017 This supplement is in conjunction with certificate #L17-444 Page 5 of 5