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National Type Evaluation Technical Committee NTEP Committee 2006 Interim Report
Appendix B NTETC Measuring Sector

Appendix B

National Type Evaluation Technical Committee
Measuring Sector

October 21 - 22, 2005 Nashville, Tennesee
Meeting Summary

National Type Evaluation Technical Committee ................................................................................................... B2
1. Recommendations to Update to NCWM Publication 14 to Reflect Changes to NIST Handbook 44 ................. B2
A. Checklist and Test Procedures for Retail Motor-Fuel Dispensers................................................................ B2
B. Checklist and Test Procedures for Specific Criteria for Vehicle-Tank Meters ............................................ B3
C. Checklist and Test Procedures for Specific Criteria for Vehicle-Tank Meters ............................................ B4
D. Field Evaluation and Permanence Test for Vehicle-Tank Meters................................................................ B4
Carry-over Items ...................................................................................................................................................... B6
2. Product Family Tables for MAG Meters, Ultrasonic Meters, and Turbine Meters ............................................. B6
3. Acceptable Symbols or Wording to Identify Unit Price, Total Price, and Quantity on a Retail Motor-Fuel
Dispenser...................................................................................................................................................... B6
New Items .................................................................................................................................................................. B8
4. Product Families for Positive Displacement (PD) Meters................................................................................... B8
5. Permanence Test for Wholesale Meters in Publication 14............................................................................. B21
6. NTEP Tolerances for Meters with Different Flow Rates when Using Different Sized Provers........................ B22
7. Marking Requirements for 3.32. LPG and Anhydrous Ammonia Liquid-Measuring Devices ......................... B25
8. Marking Requirements for 3.37. Mass Flow Meters ......................................................................................... B26
9. Value of the Smallest Unit for LMD Code........................................................................................................ B27
10. Value of the Smallest Unit for Vehicle-Tank Meters (VTM) Code .................................................................. B28
11. Add Fluid Ounce to NIST Handbook 44, Section 3.30. Liquid-Measuring Devices, Paragraph S.1.2. Units... B29
12. Reorganize Publication 14 to Clarify Tests of ECRs for RMFDs ..................................................................... B29
13. Next Meeting..................................................................................................................................................... B30
14. Multi-point Calibration (linearization) for Meters............................................................................................. B30
15. Audit Trail Remote Configuration .................................................................................................................... B31
16. New Product Application for Meters and Formula for the Proper Calculation of Relative Error ..................... B31
NTEP - B1 NTEP Committee 2006 Interim Report
Appendix B NTETC Measuring Sector


National Type Evaluation Technical Committee

1. Recommendations to Update to NCWM Publication 14 to Reflect Changes to NIST Handbook 44

Source: NIST/WMD

Background: At its Annual Meeting in July 2005, the National Conference on Weights and Measures (NCWM)
adopted the following new or modified requirements that will be reflected in the 2006 Edition of NIST Handbook 44 and
NCWM Publication 14. These items are part of the agenda to inform the Measuring Sector of the NCWM actions and to
recommend changes to NCWM Publication 14.

Recommendation: The Sector was asked to review and, if acceptable, recommend to the NTEP Committee adoption of
the following changes to Publication 14 based on changes to NIST Handbook 44:

A. Checklist and Test Procedures for Retail Motor-Fuel Dispensers
Code Reference: S.1.6.1. Indication of Delivery: Electronic Devices

Code Reference: S.1.6.1. Indication of Delivery

7.25.
Retail devices shall automatically show their initial zero condition and amount
delivered up to the nominal capacity of the device. For electronic devices
manufactured on or after January 1, 2006, the measurement, indication of
delivered quantity, and the indication of total sales price shall be inhibited until
the fueling position reaches conditions necessary to ensure the delivery starts at
zero.
Yes No N/A
7.26.
The initial indication on digital indicators may be "suppressed" or not indicated up to
a maximum of 0.03 liter or 0.009 gallon. For electronic devices manufactured prior
to January 1, 2006, the first 0.03 L (or 0.009 gal) of a delivery and its associated
total sales price need not be indicated.

Yes No N/A

Discussion/Conclusion: The Sector reviewed the proposal and agreed that the change was consistent with the
requirements in NIST Handbook 44; however, a manufacturer stated that a test method was needed to provide uniform
evaluations by various NTEP laboratories of the ability of a device to meet the requirement. That manufacturer and an
NTEP Laboratory official agreed to develop a test method for review by the Sector on the second day of the meeting.
The Sector reviewed the proposed method and agreed to add the following test method immediately following
Section 7.26 currently on page LMD 26 of NCWM Publication 14 and to forward the amended proposal to the NTEP
Committee as written for consideration.

NTEP - B2 NTEP Committee 2006 Interim Report
Appendix B NTETC Measuring Sector

Test Method:

Step Description


1
Set unit price on dispenser.


2 Pressurize
system.


3
Turn the dispenser off


4
Create void in dispenser hydraulics by opening the fuel nozzle to
provide a zero internal pressure. Then close the fuel nozzle.


5
Activate the dispenser and let the system reset to 8s, blanks then 0s.


6
With the nozzle closed, watch the main sales display for advancement
of total sales and total volume for at least 5 seconds and no more than
10 seconds.


7
No advancement constitutes a passing test.


8
Advancement constitutes a failed test.


9
Replace the fuel nozzle and turn off the dispenser.


10
Repeat this test 2 more times.
Note: The evaluator must be aware that a time delay for this feature
may be incorporated


11
Device passes test
Yes No


B. Checklist and Test Procedures for Specific Criteria for Vehicle Tank Meters
Code Reference S.1.4.1. Display of Unit Price

Code Reference: S.1.4.1. Display of Unit Price

25.1.
Means must be provided to display the unit price at which the device is set to
compute in proximity to the total computed price display. (In a device of the
computing type, means shall be provided for displaying, in a manner
clear to the operator and an observer, the unit price at which the device
is set to compute. The unit price is not required to be displayed
continuously.)

Yes No N/A
25.2.
The unit price shall be expressed in dollars and decimals of dollars using a dollar sign.
A common fraction shall not appear in the unit price (e.g., $1.299 not $1.29 9/10).
Yes No N/A


Discussion/Conclusion: No comments were received on Agenda Item B; therefore, the proposal will be forwarded to
the NTEP Committee as written for consideration.





NTEP - B3 NTEP Committee 2006 Interim Report
Appendix B NTETC Measuring Sector


C. Checklist and Test Procedures for Specific Criteria for Vehicle-Tank Meters
Code Reference S.2.4. Zero Set-Back Interlock, Vehicle-Tank Meters, Electronic

Code Reference: S.2.4. Zero Set-Back Interlock, Vehicle-Tank Meters, Electronic

26.4.
Except for vehicle-mounted metering systems used solely for the delivery of
aviation fuel, a device shall be so constructed that after individual or multiple
deliveries at one location have been completed, an automatic interlock system
shall engage to prevent a subsequent delivery until the indicating and, if
equipped, recording elements have been returned to their zero position. For
individual deliveries, if there is no product flow for 3 minutes, the transaction
must be completed before additional product flow is allowed. The 3-minute
timeout shall be a sealable feature on an indicator.
Yes No N/A

Discussion/Conclusion: No comments were received on Agenda Item C; therefore, the proposal will be forwarded to
the NTEP Committee as written for consideration.

D. Field Evaluation and Permanence Test for Vehicle Tank Meters
Code Reference: N.4.2. Special Tests (except Milk-Measuring Systems), N.4.5. Product Depleti