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07:51
Measurements of Soil Carbon by Neutron-Gamma Analysis in Static and Scanning Modes
Published on: August 24, 2017
Resumen
Los métodos de medición obligatorios carecen de suficiente precisión y evaluación de sesgo interlaboratorial, lo que lleva a costos sociales significativos. La mejora de estos sistemas de medición es crucial para que las prácticas científicas y regulatorias sean fiables.
Área de la Ciencia:
- Ciencias de la medición ciencia de la medición.
- Metrología de la metrología.
- El cumplimiento normativo.
Sus antecedentes:
- Las agencias gubernamentales requieren métodos de medición obligatorios para los fenómenos físicos, químicos y biológicos.
- Los métodos existentes se obtienen de la literatura, las organizaciones de estandarización voluntarias y el desarrollo de agencias.
- Muchos métodos de medición actuales carecen de una precisión adecuada y una evaluación de sesgo interlaboratorial.
Objetivo del estudio:
- Para resaltar las deficiencias en los métodos de medición obligatorios.
- Para subrayar los costos sociales asociados con mediciones inexactas.
- Abogar por mejoras en los sistemas de medición.
Principales métodos:
- Revisión de los métodos de medición obligatorios existentes.
- Análisis de la precisión y los datos de sesgo interlaboratorial (o la falta de ellos).
- Evaluación de los orígenes y desarrollo de las normas de medición.
Principales resultados:
- Pocos métodos obligatorios proporcionan estimaciones de precisión adecuadas.
- Incluso menos métodos ofrecen evaluaciones de sesgo interlaboratorial.
- La mayoría de los sistemas de medición nacionales no están controlados, con exclusión de los apoyados por la Oficina Nacional de Estándares.
Conclusiones:
- Se necesitan mejoras significativas en los requisitos físicos y estadísticos para mediciones confiables.
- La falta de una validación de medición robusta conduce a costos sociales sustanciales.
- Las prácticas metrológicas mejoradas son esenciales para la precisión y confiabilidad de la regulación.
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