1-A2LA_17025_Certificate_Sweetwater.pdf

(A2LA Cert. No. 4084.01) Revised 09/19/2024 Page 1 of 2

SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017

& ANSI/NCSL Z540-1-1994

LUDLUM MEASUREMENTS INC.

501 Oak Street Sweetwater, TX 79556

Richard Lewis Phone: 325 235 5494

CALIBRATION

Valid To: October 31, 2024 Certificate Number: 4084.01

In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following calibrations1, 3:

I. Ionizing Radiation & Radioactivity

Parameter/ Equipment

Range

CMC2 (±)

Comments

Gamma Exposure/Dose Rate Cs-137

100 µR/hr to 800 R/hr 1 µSv/hr to 8 Sv/hr

(0.001 to 2500) V

5.6 % of reading

1.2 % of reading

Beam calibrator

Multimeter

Neutron Dose Rate Instruments

(2 to 800) mRem/hr 20 µSv/hr to 8 mSv/hr

7.0 % of reading

Transfer method

Count Rate Instruments

(1 to 9.999 x 106) cpm

5.2 % of reading

Ludlum model 500 pulser

Pulsers –

Pulse Count

Pulse Duration

Reference Voltage/Pulse Amplitude

(1 to 9.999 x 106) cpm

0.1 µs to 0.5s

0.46 % of reading

0.85 % of reading

Precision counter

Oscilloscope

(A2LA Cert. No. 4084.01) Revised 09/19/2024 Page 2 of 2

1 This laboratory offers commercial calibration service through the service laboratory, and also provides calibration services to their own newly manufactured equipment through the new instrument laboratory.

2 Calibration and Measurement Capability Uncertainty (CMC) is the smallest uncertainty of measurement that a laboratory can achieve within its scope of accreditation when performing more or less routine calibrations of nearly ideal measurement standards or nearly ideal measuring equipment. CMCs represent expanded uncertainties expressed at approximately the 95 % level of confidence, usually using a coverage factor of k = 2. The actual measurement uncertainty of a specific calibration performed by the laboratory may be greater than the CMC due to the behavior of the customer’s device and to influences from the circumstances of the specific calibration.

3 This scope meets A2LA’s P112 Flexible Scope Policy.

For the calibrations to which this accreditation applies, please refer to the laboratory’s Calibration Scope of Accreditation.

Accredited Laboratory

A2LA has accredited

LUDLUM MEASUREMENTS INC.

Sweetwater, TX for technical competence in the field of

Calibration

This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories. This laboratory also meets the requirements of 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

(refer to joint ISO-ILAC-IAF Communiqué dated April 2017).

Presented this 12th day of December 2022.

Vice President, Accreditation Services For the Accreditation Council Certificate Number 4084.01 Valid to October 31, 2024 Revised September 19, 2024