International Legal Metrology Update for 2022 NCWM Interim Meeting

International Legal Metrology Update for the 2022 NCWM Interim Meeting (Tampa) Ralph Richter NIST Office of Weights and Measures

Software OIML TC5/SC2 (Germany is the Secretariat) OIML D 31:2019 General Requirements for Software- controlled Measuring Instruments is being revised. New guidance is being developed in the following subject areas with their associated subgroups: Machine Learning Subgroup 1. Remote Verification Subgroup 2. Terminology Subgroup 3. In May 2021, the project group met virtually to go over comments on the most recent WD and discuss progress being made in the 3 subgroups. A 1CD is expected soon. NIST Office of Weights and Measures Contact: Katya Delak

Active Electrical Energy Meters OIML TC12/p1 (Australia is the Secretariat) R46: 2012 Active Electrical Energy Meters is undergoing revision. The R46 Project Group held a series of international virtual meetings over multiple days in May 2021, and addressed comments received on the 4WD. Much of the work in the R46 PG is being done in the 4 active subgroups: Quantities and Harmonics (Subgroup 1) (looking at Reactive Energy and the issue of Fundamental vs. Harmonic Power); Smart Street Lighting (Subgroup 3); DC Metering (Subgroup 4); and Remote Displays and Meters with Modular Components (Subgroup 5). In Oct 2021, the CIML approved a new (separate) project under TC 12 that will develop a new Guide and a new Recommendation for Electric vehicle charging stations (the Netherlands is the Convener of this project). NIST Office of Weights and Measures Contact: Katya Delak

Load Cells OIML TC9: Instruments for Measuring Mass and Density (U.S. is Secretariat) Based on the results of a 2020 survey conducted within TC9, the CIML approved a project to do a minor revision (called an update ) on R60. This update effort was both started and fully completed in 2021; and was approved by the CIML at its annual meeting in October. OIML R60:2021 is now available (free of charge) on the OIML website. NIST Office of Weights and Measures Contact: Ralph Richter

Non-Automatic Weighing Instruments OIML TC9/SC1 (Germany and France are Co-Secretariats) An International Project Group is working to revise OIML R76 (2006) Non-Automatic Weighing Instruments. Subgroups have been tasked with reformatting and updating the Recommendation, and also with implementing the modular approach. Another subgroup is updating R76 software requirements and developing the associated new test procedures. A new annex is under development to provide a better overview of requirements and test procedures for verifications and inspections this additional guidance on NAWIs was specifically requested by the CEEMS countries. The US is active in several of the subgroups, and submitted comments on the 1WD of the R76 revision in Oct 2020. NIST Office of Weights and Measures Contact: Ralph Richter

Automatic Weighing Instruments (Automatic instruments for weighing road vehicles in motion and measuring axle loads) OIML TC9/SC2 (UK is Secretariat) The new revision of R134 (2006) will address: Requirements on low speed and high Speed WIM systems; Additional requirements for legal applications; Dispersion of results, safety factor; and Requirements on vehicle speed control systems. A virtual meeting was held in April 2021 to discuss the international comments received on the 2WD, including the weighment of axles or axle groups. The third working draft (3WD) of R 134 was distributed in September 2021. NIST Office of Weights and Measures Contact: Ralph Richter

Automatic Catchweighing Instruments OIML TC9/SC2 (U.K. is Secretariat) The Project Group to revise OIML R51 met virtually in May 2021; several new subgroups were established. These instruments include weigh-labelers, checkweighers, and onboard weighing systems for wheel loaders and garbage trucks. The US submitted comments on the 3WD of R51 in Nov 2021. NIST Office of Weights and Measures Contact: Ralph Richter

Multi-dimensional Measuring Instruments OIML TC7/SC5 (Australia is Secretariat) There has been significant interest to maximize harmonization between OIML R129 Multi-dimensional Measuring Instruments and the US requirements for these instruments. Canada served as Co-Convener with Australia on this project and hosted the only in-person meeting of this PG. All international comments received on the 4th CD of OIML R129 and the CIML Preliminary Ballot were resolved by international consensus. OIML R129 received final CIML approval in Nov 2020 and was published in Dec 2020. NIST Office of Weights and Measures Contact: Ralph Richter

Dynamic Measuring Systems for Liquids other than Water OIML TC8/SC3 (US is Secretariat) The complete measuring systems now fully covered by R117 (and also now part of the OIML-CS) include: Fuel dispensers and blend dispensers LPG dispensers Measuring systems on road tankers Measuring systems for unloading ships tanks Measuring systems for liquefied gases under pressure Measuring systems for milk, beer, and foaming potable liquids Measuring systems on pipelines and systems for loading ships Measuring systems intended for the fueling of aircraft Measuring systems for bunkering Measuring systems for liquefied natural gas (LNG) OIML R117 (540 pages) was published in April 2020 NIST Office of Weights and Measures Contact: Ralph Richter

Traffic Speed Meters OIML TC 7/SC 4/p 3 (Slovenia and Switzerland are the Co-Conveners) A Project Group is working to revise OIML R91 Equipment for the measurement of the speed of vehicles. This Recommendation covers metrological/technical requirements and test procedures for devices such as radar and lidar. Speed measurement technologies have made dramatic advancements over the years, and the current R91 (from the 1990s) has become quite outdated. The international comment period on the 3WD of R91 closed in August of 2021, and a 1CD is expected in 2022. NIST Office of Weights and Measures Contact: Ralph Richter

OIML Certification System OIML-CS After three years of development, implementation of the new OIML-CS began in January 2018. Thirty-seven (37) instrument categories are covered under Scheme A of the OIML-CS: Scheme A: advanced level of the OIML-CS where accreditation or peer assessment is used as the basis for demonstrating compliance with the requirements of the OIML-CS A Management Committee and a Review Committee oversee all aspects of the OIML-CS. Both the OIML-CS Management Committee and the OIML-CS Maintenance Group plan to hold (virtual) annual meetings in March 2022. NCWM/NTEP has signed a Declaration to be a Utilizer for R 60 (meaning that it will utilize test reports and test data from OIML-CS testing of load cells). NIST Office of Weights and Measures Contact: Chuck Ehrlich

OIML Certification System OIML-CS 37 OIML Recommendations are now in OIML-CS Scheme A, including: OIML R 21 (Taximeters) OIML R 46 (Active Electrical Energy Meters) OIML R 49 (Water Meters) OIML R 51 (Automatic Catchweighing Instruments) OIML R 59 (Moisture Meters for Cereal Grains and Oilseeds) OIML R 60 (Load Cells) OIML R 61 (Automatic Gravimetric Filling instruments) OIML R 76 (Non-automatic Weighing Instruments) OIML R 85 (Level gauges for Stationary Storage Tanks) OIML R 106 (Automatic Rail-Weighbridges) OIML R 117 (Dynamic Measuring Systems for Liquids other than Water) OIML R 129 (Multi-dimensional Measuring Instruments) OIML R 137 (Gas Meters) See OIML web site (www.oiml.org) for further details. NIST Office of Weights and Measures Contact: Chuck Ehrlich

CIML and RLMO Meetings The 56th CIML Meeting and the 16th OIML Conference were held virtually during the week of 18-22 October 2021. (Move to hybrid virtual meetings for the future?) Some highlights of these meetings include: 160 global participants, from OIML Member States, OIML Corresponding Members, and organizations-in-liaison; Dr Charles Ehrlich (First Vice-President of the CIML) was elected as the OIML Conference President; A new online voting system was implemented in 2021 that enabled the CIML and the Conference to approve Resolutions at the end of each meeting session; The Conference approved the OIML budget (quadrennial budget) for the 2022 2025 financial period (State Department participation); Ten new projects were approved by the CIML; E-Learning and Digitalization are gaining significantly increased attention. The Annual APLMF Meeting was held virtually on 01-02 Nov 2021; Malaysia has taken over as APLMF Secretariat; RLMO Roundtable Interim Meetings held; Smart Meters focus. Regional training remains the main focus; SIM LMWG getting more active (Colombia has Chair). OIML web site: www.oiml.org

Thank You