169 laboratories in United States are accredited by A2LA under ISO/IEC 17025 to perform ANSI/NCSL Z540-1-1994 testing. These labs commonly handle pH buffer solutions matrices. Most frequently tested analytes via this method in United States: Ph, Dc Voltage, Conductivity. From the accredited scope text: “ANSI/NCSL Z540-1-1994 GL TECHNOLOGIES LLC 6361 Nancy Ridge Dr. San Diego, CA 92121 C. J. Langner Phone: 858 202 1408 CALIBRATION Valid To: October 31, 2026 Certificate Number: 3364.01 In recognition o” “ANSI/NCSL Z540-1-1994 AALFA - KAL METROLOGY LABORATORY, DIVISION of AALBORG INSTRUMENTS & CONTROLS, INC. 20 Corporate Dr. Orangeburg, NY 10962 Agnieszka Malolepszy Phone: 845 770 3000 CALIBRATION Vali” “ANSI/NCSL Z540-1-1994 K-LIGHT LABORATORIES CORP. 15705 Arrow Highway Suite #3 Irwindale, CA 91706 Juan Mendez Phone: 626 960 0400 CALIBRATION Valid To: December 31, 2026 Certificate Number: 3415.01 In” “ANSI/NCSL Z540-1-1994 FLUKE CALIBRATION, PHOENIX – PRIMARY PRESSURE AND FLOW LABORATORY 4765 East Beautiful Lane Phoenix, AZ 85044 Tim Mueller Phone: 877 355 3225 CALIBRATION Valid To: March 31, 2027”
Westford, MA, US
ANSI/NCSL Z540-1-1994 HITACHI HIGH-TECH AMERICA, INC. 2 Technology Park Drive, 2nd Floor Westford, MA 01886 Email: support.us@hitachi-hightech.com Phone: 978 850 5580 CALIBRATION Valid To: February 28, 2027
Baltimore, MD, US
ANSI/NCSL Z540-1-1994 AMERICAN SCALE & EQUIPMENT CO., INC. 8839-D Kelso Drive Baltimore, MD 21221 Aldo D’Eugenio Phone: 410 682 2800 CALIBRATION Valid To: August 31, 2027 Certificate Number: 2048.01 In reco
Indianapolis, IN, US
ANSI/NCSL Z540-1-1994 QUALITY CONTROL SALES AND SERVICES, INC. 5803 West 73rd Street Indianapolis, IN 46278-1743 David A. Kerr Phone: 317 299 8855 CALIBRATION Valid To: July 31, 2026 Certificate Number: 149
Irving, TX, US
ANSI/NCSL Z540-1-1994 & ANSI/NCSL Z540-3-2006 TEKTRONIX, INC 8400 Esters Blvd, Suite 170 Irving, TX 75063 Steven T Housley-Follis Phone: 972-871-4718 CALIBRATION Valid To: April 30, 2026 Certificate Number:
SUITE B Cornelius, NC, US
ANSI/NCSL Z540-1-1994 & ANSI/NCSL Z540.3-2006 TRESCAL, INC. 10442 Bailey Road, Suite B Cornelius, NC 28031 Allan Robinson Jr. Phone: 704 987 4300 CALIBRATION Valid To: March 31, 2027 Certi
Longwood, FL, US
ANSI/NCSL Z540-1-1994 LDS VACUUM PRODUCTS 773 Big Tree Drive Longwood, FL 32750 John Bencze Phone: 407 862 4643 CALIBRATION Valid To: August 31, 2027 Certificate Number: 1566.01 In recognition of the succes
Wilson, NC, US
Accredited Laboratory A2LA has accredited PHARMAMATRIX, LLC DBA APPLIED CALIBRATION SERVICES Wilson, NC for technical competence in the field of Calibration This laboratory is accredited in accordance with the recognized Intern
Fort Wayne, IN, US
ANSI/NCSL Z540-1-1994 TRI-STATE INSTRUMENT SERVICE, INC. 8411 Clinton Park Drive Ft. Wayne, IN 46825 Lynn A. Stroble Phone: 260 456 4545 CALIBRATION Valid To: June 30, 2026 Certificate Number: 1622.01 I
Roselle, IL, US
ANSI/NCSL Z540-1-1994 GRAFTEL 95 Chancellor Dr. Roselle, IL 60172 David Glover Phone: (847) 364 2600 CALIBRATION Valid To: September 30, 2027 Certificate Number: 5827.01 In recognition of the successful co
Bloomington, MN, US
ANSI/NCSL Z540-1-1994 SIMCO Electronics, Inc. 6537 Cecilia Circle Bloomington, MN 55439 Ruth Gendro Phone: 425 894 5116 CALIBRATION Valid To: September 30, 2027 Certificate Number: 1395.14 In recognition of
Santa Clara, CA, US
ANSI/NCSL Z540-1-1994 SIMCO ELECTRONICS 3131 Jay Street Santa Clara, CA 95054 Ruth Gendro Phone: 425 894 5116 CALIBRATION Valid To: September 30, 2027 Certificate Number: 1395.17 In recognition of the su
Stockton, CA, US
ANSI/NCSL Z540-1-1994 G.T. MICHELLI CO., LLC 2334 Stagecoach Road, Ste E Stockton, CA 95215 Bryan Moffat Phone: 706 855 1111 CALIBRATION Valid To: July 31, 2027
Sterling, VA, US
ANSI/NCSL Z540-1-1994 SIMCO ELECTRONICS 45472 Holiday Dr. Suite 1 Sterling, VA 20166 Ruth Gendro Phone: 425 894 5116 CALIBRATION Valid To: September 30, 2026 Certificate Number
Redmond, WA, US
ANSI/NCSL Z540-1-1994 CASCADE ENGINEERING SERVICES, INC. 6640 185th Ave NE Redmond, WA 98052 Nathan Isler Phone: 425 895 8617 CALIBRATION Valid To: December 31, 2025 Certificate Number: 2560.01 In recognitio
Lafayette, IN, US
ANSI/NCSL Z540-1-1994 RADIAN RESEARCH INC. 3852 Fortune Drive Lafayette, IN 47905 Zachary Page Phone: 765 449 5500 CALIBRATION Valid To: July 31, 2027
Port Arthur, TX, US
ANSI/NCSL Z540-1-1994 JM TEST SYSTEMS, LLC. Calibration Laboratory Division 7323 Tom Drive Baton Rouge, LA 70806 Brenna Himel Phone: 225 925 2029 x3062 CALIBRATION Valid To: November 30, 2026
Rolling Meadows, IL, US
ANSI/NCSL Z540-1-1994 J.H. METROLOGY CO., INC. 1801 Hicks Road, Unit E Rolling Meadows, IL 60008 Neil E. Willert Phone: 847 991 0290 CALIBRATION Valid To: April 30, 2027 Certificate Number: 1618.01 In recog
Pembroke, GA, US
ANSI/NCSL Z540-1-1994 and R205 – Specific Requirements: Calibration Laboratory Accreditation Program. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (
Duluth, GA, US
ANSI/NCSL Z540-1-1994 HOTTINGER BRUEL & KJAER INC. North American Service Center Calibration Laboratory 3079 Premiere Parkway Suite 120 Duluth, GA 30097 Kyle Chancey Phone: 770 209 6959 CALIBRATION Valid To: S
Newnan, GA, US
ANSI/NCSL Z540-1-1994 YOKOGAWA CORPORATION OF AMERICA 2 Dart Road Newnan, GA 30265 Kamren Simpson Phone: 678 953 0290 CALIBRATION Valid To: December 31, 2027 Certificate Number: 3474.01 In recognition of th
Edmond, OK, US
ANSI/NCSL Z540-1-1994 PROBATA CORPORATION P.O. Box 4090 14600 Metro Plaza Blvd. Edmond, OK 73013 Greg Chambers Phone: 405 607 4813 CALIBRATION Valid To: September 30, 2027 C
Rixeyville, VA, US
ANSI/NCSL Z540-1-1994 & ANSI/NCSL Z540.3-2006 INVOCAL, INC. 15577 Sheads Mountain Road Rixeyville, VA 22737 Thomas Efaw Phone: 540 690 4042 CALIBRATION Valid To: October 31, 2026 Certificate Number: 6782.01
Lebanon, TN, US
ANSI/NCSL Z540-1-1994 G.T. MICHELLI CO., LLC 321-A South Cumberland Street Lebanon, TN 37087 Bryan Moffatt Phone: 706-855-1111 CALIBRATION Valid To: October 31, 2026 Cer
Newport News, VA, US
ANSI/NCSL Z540-1-1994 & ANSI/NCSL Z540.3-2006 ACR TECHNICAL SERVICES, INC 710 Industrial Park Drive Newport News, VA 23608 Joseph Gaudiello Phone: 757 890 0460 CALIBRATION Valid To: October 31, 2026 Certifica
Melbourne, FL, US
ANSI/NCSL Z540-1-1994 & ANSI/NCSL Z540.3-2006 TRESCAL INC. 3905 West Eau Gallie, Ste 105 Melbourne, FL 32934 Connor Bickford Phone: 321-378-0007 CALIBRATION Valid To: November 30, 2027
Placentia, CA, US
ANSI/NCSL Z540-1-1994 & ANSI/NCSL Z540.3-2006 RSA INDUSTRIES INC DBA AMERICAN GAGE 1131 Richfield Rd Placentia, CA 92870 Roger Arnold Phone: 657 216 2600 CALIBRATION Valid To: March 31, 2027 Certificate Number:
San Jose, CA, US
ANSI/NCSL Z540-1-1994 & ANSI/NCSL Z540-3-2006 TRESCAL, INC 625 River Oaks Pkwy San Jose, CA 95134 Eddison Wong Phone: 408 444 9998 CALIBRATION Valid To: August 31, 2026 Certificate Number: 1797.01 In recogn
San Diego, CA, US
ANSI/NCSL Z540-1-1994 GL TECHNOLOGIES LLC 6361 Nancy Ridge Dr. San Diego, CA 92121 C. J. Langner Phone: 858 202 1408 CALIBRATION Valid To: October 31, 2026 Certificate Number: 3364.01 In recognition of
Riverview, MI, US
ANSI/NCSL Z540-1-1994 TESTCAL PLUS 18263 Fort St Riverview, MI 48193 Palani Maslamani Phone: 313 355 7690 CALIBRATION Valid To: September 30, 2026 Certificate Number: 4306.01 In recognition of the successf
Fort Wayne, IN, US
ANSI/NCSL Z540-1-1994 ENI LABS 3120 Independence Dr. Fort Wayne, IN 46808 Kenton Sheppard Phone: 260 471 6775 CALIBRATION Valid To: March 31, 2026 Certificate Number: 2147.01 In recognition of the successf
Blaine, MN, US
ANSI/NCSL Z540-1-1994 PRECISION REPAIR AND CALIBRATION, INC. 10370 Flanders Street NE Blaine, MN 55449 Brian Downie Phone: 763 762 6250 CALIBRATION Valid to: May 31, 2027 Certificate Number: 5428.01 In r
Oklahoma City, OK, US
ANSI/NCSL Z540-1-1994 HUSTON-DEPUE CALIBRATION LABORATORIES INC. 600 NW 124th St Oklahoma City, OK 73114 Greg Bellah Phone: 405 285 5850 CALIBRATION Valid To: June 30, 2027 Certificate Number: 4167.01 In re
Hialeah, FL, US
ANSI/NCSL Z540-1-1994 KIMBALL ELECTRONIC LABORATORY, INC. 6801 University Blvd, Suite #4 Winter Park, FL 32792 Javier Balceiro Phone: 305 822 5792 CALIBRATION Valid To: August 31, 2026 Certificate Number:
Islip, NY, US
ANSI/NCSL Z540-1-1994 A.H. ELECTRONIC TEST EQUIPMENT REPAIR CENTER 374 Islip Ave, Suite 201 Islip, NY 11751 Audley Haynes Phone: 631 277 6282 CALIBRATION Valid To: February 28, 2027 Certificate Number: 26
Bismarck, ND, US
ANSI/NCSL Z540-1-1994 TEAM TORQUE, INC. 1231 Park Avenue Bismarck, ND 58504 Cary Hoffman Phone: 701 223 4552 CALIBRATION Valid To: September 30, 2026 Certificate Number: 2472.01 In recognition of the succes
Cedar Park, TX, US
ANSI/NCSL Z540-1-1994 ETS LINDGREN INC. 1301 Arrow Point Drive Cedar Park, TX 78613 Ron Bethel Phone: 512 531 6400 CALIBRATION Valid To: December 31, 2026 Certificate Number: 1207.01 In recognition of the
Sparks, MD, US
ANSI/NCSL Z540-1-1994 & ANSI/NCSL Z540.3-2006 TRESCAL, INC. 47 Loveton Circle Suite I Sparks, MD 21152 Ben Slaughter Phone: 410 337 0687 CALIBRATION Valid To: March 31, 2026 Certificate Number: 1346.01 I
South Windsor, CT, US
ANSI/NCSL Z540-1-1994 INDUSTRONICS SERVICE COMPANY 489 Sullivan Avenue South Windsor, CT 06074 James L. Wyse Phone: 860 289 1551 CALIBRATION Valid To: July 31, 2027 Certificate Number: 1619.01 In recognitio
Lynnwood, WA, US
ANSI/NCSL Z540-1-1994 EUSTIS CO., INC./PYROCOM CALIBRATION LAB 12407-B Mukilteo Speedway, #200 Lynnwood, WA 98087 Ariel Beringer Phone: 425 423 9996 CALIBRATION Valid To: October 31, 2026 Certificate Number: 2
Billerica, MA, US
ANSI/NCSL Z540-1-1994 HAYES INSTRUMENT SERVICE, INC. 530 Boston Road Billerica, MA 01821 Tony Ganchi Phone: 978 663 4800 CALIBRATION Valid Until: January 31, 2028 Certificate Number: 2117.01 In re
Lenexa, KS, US
ANSI/NCSL Z540-1-1994 TEST & MEASUREMENT, INC. 7931 Bond Street Lenexa, KS 66214 Grant Karriker Phone: 913 233 2724 CALIBRATION Valid To: August 31, 2026 Certificate Number: 6940.01 In recognition of the s
Dallas, TX, US
ANSI/NCSL Z540-1-1994 & ANSI/NCSL Z540-3-2006 TEKTRONIX INC. 12500 TI Blvd Dallas, TX 75243 Michael Rivera Phone: 800 438 8165 CALIBRATION Valid To: July 31, 2026 Certificate Number: 2357.32 In recog
Suite E Addison, IL, US
ANSI/NCSL Z540-1-1994 MARTIN CALIBRATION, INC dba GREAT LAKES CALIBRATION, INC 1490 West Bernard Dr. Suite E Addison, IL 60101 Marya Black Phone: 630 613 9350 CALIBRATION Valid until: June 30, 2026 Certific
Clayton, OH, US
Accredited Laboratory A2LA has accredited MIDWEST METROLOGY, LLC Clayton, OH for technical competence in the field of Calibration This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 1
Wichita, KS, US
ANSI/NCSL Z540-1-1994 JOHNSON GAGE AND INSPECTION 5920 W. 21st Street North Wichita, KS 67205 Johnny Vogt Phone: 316-943-7532 CALIBRATION Valid To: May 31, 2027 Certificate Number: 2820.01 In recognition of
Building A Austin, TX, US
ANSI/NCSL Z540-1-1994 NI GLOBAL CALIBRATION SERVICES Patrick Nutt Phone: 512 683 9136 CALIBRATION Valid To: SEE FOOTNOTE 9 Certificate Number: 3237.01 In recognition of the successful completion of th
Windsor, CT, US
Accredited Laboratory A2LA has accredited FISCHER TECHNOLOGY, INC. USA Windsor, CT for technical competence in the field of Calibration This laboratory is accredited in accordance with the recognized International Standard ISO/I
Mentor, OH, US
ANSI/NCSL Z540-1-1994 MICRO LABORATORIES INC. 7158 Industrial Park Mentor, OH 44060 Garett Kokal Phone: 440 918 0001 CALIBRATION Valid To: July 31, 2027 Certificate Number: 1312.01 In recognition of the suc
Kootenai Building Richland, WA, US
ANSI/NCSL Z540-1-1994 ENERGY NORTHWEST STANDARDS LABORATORY 75 N Power Plant Loop, Kootenai Building, Energy Northwest Richland, WA 99354 Jesse Prasad Phone: 509 372 5218 CALIBRATION Valid To: January 31, 2027
Jupiter, FL, US
Accredited Laboratory A2LA has accredited RTX (FL) CORPORATION DBA PRATT & WHITNEY CALIBRATION SERVICES LAB Jupiter, FL for technical competence in the field of Calibration This laboratory is accredited in accordance with the
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This page is a fixed slice of the register: every ANSI/NCSL Z540-1-1994 scope we hold for United States. Search narrows it further by city, accreditation body, or a term from the scope text itself.
Search labs in United StatesAmerican Association for Laboratory Accreditation (A2LA) is the primary accreditation body issuing ISO/IEC 17025 accreditation for testing laboratories in United States.
ISO/IEC 17025 is the international standard for the competence of testing and calibration laboratories. Accreditation to this standard provides independent confirmation that a laboratory operates a quality management system and is technically competent to produce valid results within its declared scope.