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.
View Source
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.
View Source
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;
View Source

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)
View Source
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.
View Source
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.
View Source
Quality control sample means samples and testing performed by the Design-
View Source

Related to Quality control sample

  • Quality control means the total of all activities performed by the Design-Builder, Designer, Construction Inspection Professional Engineering Firm and the Materials Testing Firm or Laboratory, subcontractors, producers or manufacturers to ensure that the Work performed by the Design-Builder conforms to the Contract requirements. For design, Quality Control activities shall include, but not be limited to, procedures for design quality, checking, design review including reviews for constructability, and review and approval of Working Plans. For construction, Quality Control activities shall include, but not be limited to, procedures for materials handling and construction quality, inspection, sampling and testing of materials both on site and at the plant(s), field testing of materials, obtaining and verifying Materials Certifications, record keeping, and equipment monitoring and calibration, production process control, and monitoring of environmental compliance. Quality Control also includes documentation of all QC design and construction efforts. The Scope of Work to be performed as part of the Quality Control task may be changed after the RFQ Phase.

  • air traffic control service means a service provided for the purpose of:

  • aerodrome control service means air traffic control service for aerodrome traffic;

  • Vapor control system means a system that prevents release to the atmosphere of gasoline vapors in excess of 80 milligrams per liter of gasoline loaded (4.7 grains per liter).

  • Traffic control signal means a device, whether manually, electrically, or mechanically operated, by which traffic is alternately directed to stop and permitted to proceed.