Quality control sample definition
Quality control sample means a sample that is produced and used by a laboratory for the purpose of assuring the quality of the data and results. Quality control samples include blank samples, matrix spike samples, field duplicate samples, replicate samples, and reference material samples.
Quality control sample means surplus proficiency test material, stable at least for the duration of the proficiency test, with assigned values and satisfactory ranges (±2 standard deviations for proficiency assessment) derived from the overall proficiency test statistics. “Reference Material” means quality control material that has undergone formal stability testing. The parameter values are derived from subsets of proficiency test data (ideally traceable to the International Standard). Parameter values are provided with associated uncertainties, derived from a combination of subsets of proficiency test data, homogeneity testing and stability testing.
Quality control sample means surplus proficiency test material, stable at least for the duration of the proficiency test, with assigned values and satisfactory ranges (±2 standard deviations for proficiency assessment) derived from the overall proficiency test statistics;
More Definitions of Quality control sample
Quality control sample or "QC sample" means a sample used to assess the performance of all or a portion of the measurement system. QC samples may be certified reference materials, a quality system matrix fortified by spiking, or actual samples fortified by spiking. (NELAC)
Quality control sample. – means an uncontaminated environmental sample type spiked with known amounts of analytes and analyzed to assess laboratory performance of a particular test method.
Quality control sample means a sample of Marijuana or Marijuana Product developed by a Marijuana Cultivator, a Marijuana Product Manufacturer, a Microbusiness, or a Craft Marijuana Cooperative that is provided internally to employees for purposes of ensuring product quality and making determinations about whether to sell the Marijuana or Marijuana Product.
Quality control sample means samples and testing performed by the Design-