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October/November/December 2007
Metrology Education and Training — NCSLI Taking the Initiative
Managing Change in an ISO/IEC 17025:2005 Environment
Use of SPC in Maintenance and Quality Verification of a DC Voltage Reference Standard
Building a Better Cal Lab Workstation for the Naval Surface Warfare Center

July/August/September 2007
Measuring the Netherlands Meter by Atomic Clock
A Calibration Software and Metrology Analysis Tool
Multi-Channel Converters for Electrical Capacitance Standards
Influence of the Accuracy of the DC Source on the AC-DC Differences of Micropotentiometers

April/May/June 2007
Methods for Evaluating the Condition of PRTs
Error Propagation for Dimensional Inspection
Building the Mahr Federal Precision Measurement Center
Calibrating Pressure Sensors for Critical Environments

January/February/March 2007
The Design, Development and Commissioning of a 2 kNm Torque Standard Machine
GPS Receiver Calibration: Why Is It Necessary
A Portable Accredited Humdity Calibration System

October/November/December 2006
Variation of the Isotopic Ratio 15N/14N in Nitric Oxide Calibration Gases May Bias Analytical Results
Better Accuracy in Temperature Calibration and Measurement Through a New Type of Analog-toDigital Converter
Implemetation of a Commercial Quantum Hall Resistance System
Going Paperless and Wireless

July/August/September 2006
Outsourcing Metrology Services
Recent Improvements in AC-DC Difference Calibration Service for Thermal Transfer Standards at NIS, Egypt
The New National Measurement Institute Australia
A 1kg Prototype Balance for High Precision Mass Determination and Research Applications

April/May/June 2006
Not published

January/February/March 2006
Using a Mini Triple Point of Water System to Improve Reliability
Preparing for Tomorrow: Trends in Metrology
Evaluation of Associated Uncertainties in Direct Pressure Electromechanical Devices
Adding Measurement Functions to Multi-Product Calibrators to Improve Functionality

January/February/March 2005
Metrology Training Grants
Stable Low Level Conductivity Standards
Selecting the Right Balance
Calibrating Precision Multimeters Using a Characterized Multifunction Calibrator

April/May/June 2005
Calibrating Frequency Sources
Considerations in Determining Calibration Status
Effects of Different Surroundings on the Stability of SPRTs from 650° through 1000°C
Making Accurate DC Voltage Measurements in the Presence of Series Mode AC Signals

July/August/September 2005
Using Metrology As a Competitive Weapon
Single Instrument Calibration of Signal Generators to 50 GHz
Uncertainty Analysis When Using Multifunction Calibrators to Calibrate DMMs
The Effect of Air Laden Soluble Salts on Dew Point Measurement

October/November/December 2005
A Measurement Assurance Program for Flow Calibration by the Transfer Method
Measurements of a Hydraulic Valve System Using New NDT Techniques
A Calibration Software With Advanced Uncertainty and Prediction Capabilities
The Acropolis Width and Ancient Geodesy

January/February/March 2004
Hart Scientific's New UK Primary Standards Lab
Promoting the Calibration Agenda
Evaluation of Outliers in Metrological Data
Switching from Chart Recorders to Data Loggers

April/May/June 2004
Integration of ISO 10012 Into US Measurement Processes
Statistical Control of Flow Calibration
A Primer on Vibration & Shock Calibration
Radiation Thermometer Facilities at NIS, Egypt

July/August/September 2004
Agilent Technologies' New Measuring Receiver
Bridging the Gap Between Documentary Standards
A Primer on Vibration & Shock Calibration, Part II
Using the Government Purchasing Website

October/November/December 2004
A Direct Comparison Calibrator for RF Power Sensors
Mass vs. the Ampere: Evolution in SI Units
Determining the Right Software for Your Business
A New Polydisperse Particle Size Reference Standard

January/February/March 2003
Torque and Its Impact on the Bottom Line
Characterization of NPL India's Hydraulic Pressure Standards
Gravimetric vs. Spectrophotometric Errors in Pipette Calibration

April/May/June 2003
Radio Signals for Time and Frequency Measurements
Improving Power Quality Measurements
Buying Reconditioned Test Equipment
Innovations in Proficiency Testing

July/August/September 2003
2003 Directory of Calibration Products and Services
Calibration of SPRTs in a Primary Laboratory
A New Low Current Measurement System
When Equipment Rental Makes Sense

October/November/December 2003
Calibration Certificates: Look Closer Before Filing
Gas Detectors and Occupational Safety
A Statistical Procedure to Maintain Point Value

January/February/March 2002
Strategic Measurement Services: Increasing the Corporate Value of Your Cal Lab
Recommended Practices for Flowmeter Use and Calibration
Determining Uncertainty in Accredited CMM Field Service Calibrations
The QA Managers Guide to Selecting A Calibration Service Provider
2002 Directory Consultants and Training Services

April/May/June 2002
2002 Directory of Calibration Service Providers
Profile: International Measurement Confederation (IMEKO)
Magnetic Measurements
The Development of A New Software Standard (Fluke's MetCal Plus 7.0)

July/August/September 2002
2002 Directory of Calibration Products and Services: Instrument and Software Manufacturers
Update on the ASQ Certified Calibration Technician Program
The Theory and Operation of Optical Chilled Mirror Hygrometers for Humidity Calibration
MUDCATS: A Comprehensive New Software Program

October/November/December 2002
Meeting ISO 17025 for Complex Electronic Equipment
The Value of Proficiency Testing
Hidden Challenges of Relative Humidity Calibration
DeVry University's Engineering Program

January/February/March 2001
Future Voltage Metrology at NIST
A Century of Impedance
Methods for Estimating Uncertainty of Electronic Balance Measurements
Practical Humidity Calibration Experience

April/May/June 2001
not published

July/August/September 2001
A History of U.S. Accreditation
Time and Frequency Using GPS
A Platinum Resistance Thermometer for -200 deg C to 661 deg C

October/November/December 2001
Automating Pressure Sensor Manufacturing
Temperature, Scales and Isothermal Volumes: A Primer
Developing a Metrology Program Without a Laboratory

January/February 2000
Fluke's Acquisition of Wavetek-Datron
Challenges in Developing the Space Clock
Controlling Pipette Performance
Advantages of Commercial Calibration Software

March/April 2000
The How's and Why's of Proficiency Testing
Profile: National Association for Proficiency Testing
The Current Status of U.S. Gear Measurement Traceability and Uncertainty
A Proposal for the Establishment of Measurement Uncertainty for Pressure Dial Gauges and Transducers

May/June 2000
ISO/IEC 17025: Highlights of the New Requirements for Calibration Laboratories
The Practical Significance of Electrical Harmonics
Standard Resistors: Their Use and Maintenance, an Overview
Precise Measurement of Complex Voltage Ratios at Power Frequencies
Measurement of Relative Magnetic Permeability

July/August 2000
Thermal Conductivity Standards at Britain's NPL
The BIPM/ IGS High Accuracy Time Project
A Revealing Study of Low Conductivity Solution Standards
Quality Audit Standards for Particle Sizers

Sep/Oct 2000
How to Ensure Timebase Accuracy: Prepping the Techs in the Trenches
Metrology Education in the New Millennium
Sources of Uncertainty in Standard Resistors
The Advantages of Customized Software

Nov/Dec 2000
A Certification Program for Calibration Technicians: An Inititative in the Works
Internet-Based Calibrations of Electrical Quantities at the United Kingdom's National Physical Laboratory
Issues in Purchasing and Maintaining Intrinsic Standards
The Business of Calibration: The Role of Marketing and Customer Service

January/February 1999
U.S. Metrology Training for the 21st Century
Improved Uncertainty in 10 Volt Standard Cells Using an Ensemble and Modified Uncertainty Predictions
Using Data Normalization to Get the Most From Your Equipment Database
Combustible Gas Monitoring: Technology Choices and Metrology Issues

March/April 1999
A Mutual Recognition Agreement for National Measurement Standards
Are Your Magnetic Measurements Really Traceable: An Introduction to NPLs Capabilities
Tele-Calibration of Gas Flow Meters
Maintenance and Calibration of Highway Automated Remote Transducer Field Instrumentation
Verifying a Short (Zero) Connection with Kelvin Clips

July/August 1999
Development of a 100A Transconductance Amplifier
A Modular, Portable Quantized Hall ResistanceStandard
The Effect of Vacuum Exposure on Mass Standards
Measurement Accreditation of Electrical Calibration Laboratories

September/October 1999
Verification Methods for Microwave Network Analyzers
A New DC Voltage Maintenance System
Traceability in Time and Frequency Metrology
Telecom Metrology

November/December 1999
Intrisic and Derived Standards: Are They Really What They Claim
Intrinsic and Derived Standards: Rebuttal to Are They Really What They Claim
Diode Lasers in Length Metrology: Application to Absolute Distance Interferometry
Buying Instruments on the Internet: Introducing www.testmart.com

January/February 1998
End-to-End Temperature Calibration - A Matter of Degree
Improving the Laboratory Management Process
A New Generation of Fixed Points
Implementing Automated Oscilloscope Calibration Systems

March/April 1998
Freeware: Mismatch Uncertainty Calculator
Privatization: The Future of Government Laboratories
A Simple Resistance Bridge Calibrator
Selecting a Commercial Calibration Service

May/June 1998
Isotech's New ITS-90 Primary Thermometry Laboratory
Statistical Analysis of Network Analyzer Measurement
sA New Gauge Management Software
Temperature Measurements With Pure Element Thermocouples

July/August 1998
Secondary Calibration of Tube Mass Flow Meters
Sources of Error in Mass Determinations
A Custom Shop Floor CMM
Setting Up a Pressure Calibration Laboratory

September/October 1998
A Successor to the Wheatstone Bridge: NASA's Anderson Loop
NVLAP Calibration Laboratory Accreditation: A Working Example
Setting Zero on an Absolute Pressure Transducer
Calibration of Total Harmonic Distortion Meters

November/December 1998
Profile: International Society of Antique Scale Collectors
The Development of An Oceanographic Water Triple Point Cell
Difficulties in Achieving Well Characterized Accuracy and Reproducibility in Micropipettes
Reference Material Standardization Guildlines for Quality Control and Validation of UV/VIS Absorption Spectrophotometers
The Case for Functional Fit Philosophy

January/February 1997
Developing A Process Measurement Assurance Program
Improving Accuracy in Low Pressure Measurements
Inspection Moves from Post to Pre for Machine Tools
The Single Process Initiative: Fast Road to Commercial Practices
A Third True Hamon RatioMarch/April 1997
Notes from the Measurement Science Conference
Uncertainty Calculator: A Freeware Tool for Expressing Measurement Uncertainty
A Statistical Approach to Calibrate High End Digital Multimeters
Simple Tests for Evaluating Digital Storage Oscilloscopes
Calibration of Multifunctional and Multirange Measuring Instruments Using Functional Blocks
Calibration and Maintenance of Deadweight Testers

May/June 1997
A New NIST-Certified Small Scale Pitch Standard
Highly Accurate Direct Mass Measurements Without the Use of External Mass Standards
An Evaluation of Commercial Solid State Zener Voltage Standards
Tips on Handling and Maintenance of Precision Weights

July/August 1997
A Generic DMM Test and Calibration Strategy
Evaluations of Water Triple Point Cells: A Summary Report of Recent International Intercomparision
sResistance Measurement Systems with Sub-ppm Accuracies

Sep/Oct 1997 Analytical Chemistry Measurement Assurance Programs: More Than Just Measurement Control
Type A/Type B Uncertainty Calculations Demystified
Laboratory Makeover: Plan for Equipment Storage
How to Choose the Appropriate Pipets and Pipet Tips for Your Applications

Nov/Dec 1997
Guildline Instruments Celebrates 40 Years of Achievements
Changes Proposed by the Draft ISO/IEC Guide 25
Using the ISO "Guide to the Expression of Uncertainty in Measurements to Determine Calibration Requirements"
Advances in Environmental Parameter Measurements: The EMDAS
The Application of Decentralized Computer Systems for Environmental Monitoring

January/February 1996
Maintaining the Primary Standard of Resistance Using a Cryogenic Current Comparator
An Introduction to Frequency Calibration
EMC Calibration: European EN Standards are Driving a New Service
A Measurement Technique to Improve Automatic Accelerometer Calibration
Notes from the British Electromagnetic Measurements Conference
Notes from the Metrology of the Americas Symposium

March/April 1996
ANSI/NCSL Z540 Update
One Company Has It All: NAMAS and NVLAP Accreditation
ISO 9000 Versus ISO Guide 25 for Laboratories
Adopting Calibration Adjustment Philosophy to Microprocessor Based Instruments
An Introduction to Frequency Calibration Part II
Notes from the Measurement Science Conference

May/June 1996
New Techniques in Automated, High Performance Oscilloscope Calibration
Metrology Education: Opening the Door to the Next Century of Competitiveness
Recent Advances in Oscilloscope Capabilities
Performance Verification of Small Volume Mechanical Action Pipettes
Measuring Screw Threads: When New Technology Meets Old Practices
Understanding Low and Medium Frequency Impedance

July/August 1996
The Josephson Primary Voltage Standard: Towards a Mobile Turnkey System
The Trident Exchange Pool: Calibrated Test Equipment - To Go
Current Developments in the Chilean Metrology Situation
Development of A Resistance Thermometer for Use Up to 1600°C
The Elusive Properties of Magnetism in Mass Standards
Tolerance Calculator: A Freeware Metrology Tool

September/October 1996
Recent Developments in Software-Controlled Automated Resistance Bridges
Non Traditional Applications of Field Calibrators
Combination Valve Enables In-Situ Zeroing and Calibration of Capacitance Manometers
The Design Aspects of a Documenting Process Calibrator
A Universal Length Measuring Device to Measure and Calibrate Gauges
The New Uncertainty Estimates and How They Affect Pressure Measurement

November/December 1996
Laboratory Accreditation: The Need for a National Infrastructure
The Single Process Initiative: Fast Road to Commercial Practices
The New Approach: Present and Forthcoming Situation for the European Directives
A Third True Hamon Ratio
The Advantages of Portable Coordinate Measuring Machines
Answers to Commonly Asked Questions About Mass Standards
Four Terminal-Pair Concepts

January/February 1995
Accurate Traceable Power Calibration at High Frequencies
Guest Editorial: Certifying the Certifier
Streamlining the Documentation Process for ISO 9000

March/April 1995
The Josephson Primary Voltage Standard: A New Voltage Calibration System with 5 ppb Uncertainty
EMI Calibration Requirements
ANSI/NCSL Z540-1: A New National Standard for Calibration Laboratories and Equipment

May/June 1995
The NIST Frequency Measurement Service
Temperature Measurement with AC and DC Bridges
Sandia's New Primary Standards Laboratory
Determining Mass Measurement Uncertainty

July/August 1995
Producing the Highest Level of Accuracy from Standard Platinum Resistance Thermometers
Performance of a Multilayer Thin-Film Multijunction Thermal Converter
Gas Flowrate Calibration Using a Piston Prover and A Laser Doppler Displacement Meter
Automatic Calibration of Height Setting Micrometers Using A Laser Interferometer
An Update on Worldwide Cleanroom Standards

September/October 1995
Soldiers Into Farmers: The Future of Calibration Services (Survey)
Preparing for NVLAP Accreditation: One Company's Story
Precision Temperature Calibration On Platinum Resistance Thermometers Using AC Thermometry Bridges
Cryogenic Flow Calibration at NIST
A Private Sector Role in the Accreditation of Calibration Laboratories

November/December 1995
The Making of a Low Gauss Solenoid: The Legacy of 1936
Phase Standards: Design, Construction, Traceability and Verification
Magnetic Calibration at the U.S. Navy Primary Standards Laboratory
Eliminating A Source of Stepping Noise in Josephson Voltage Standards
Design of a Calibration Platform for Scanning Probe Microscopes and Other Probing Systems
Accurate Calibration of Vibration Transducers from 0.25 Hz to 1,5000 Hz