They are not a substitute for a product sellers or users own judgment with respect to the particular product referenced in the Standard or guideline, and NEMA does not undertake to guarantee the performance of any individual manufacturers products by virtue of this Standard or guide. Thus, NEMA expressly disclaims any responsibility for damages arising from the use, application, or reliance by others on the information contained in these Standards or guidelines. Having reviewed various documents and articles pertaining to the Twente University Electronic Meter Tests (œthe report), below are listed some observations. Hopefully, this will provide some points to be utilized in developing a response to the report that will mitigate any concerns that may be brought about by any consumers who may consider the results from that test. With the style meter that was tested, the current (A) is also flowing through the meter's voltage signal input, thus negatively influencing the outcome of the test. The electromechanical meters used for reference are likely not capable of accounting for the high-frequency harmonics produced from the test loads. Some of the meters manufactured by NEMA members utilize separate voltage and current inputs in their operation, while others are self-contained with combined voltage and current inputs. The report claims that meters using either Hall effect sensors or Rogowski coils as their internal source of signal acquisition (current sensing) experienced greater accuracy deviations, but made no comment as to the application of the sensor type, implying that all meters with these sensor types are suspect. The report claimed that meters with shunts or current transformers (CTs) experienced lesser accuracy deviations, but again, no comment is made as to the appropriate application of the sensor type. This was stated as a possible valid load condition because the consumer may use these types of lamps with a dimmer even though they were not designed to be used as such.