Quality Control and Standardization

The use of standard solutions, reference standards, and quality control samples, whether prepared by the laboratory or purchased commercially, is essential to valid analyses of test and control article/carrier mixtures and biological fluids (blood, serum, plasma, etc). 

As far as the preparation of the stock solutions for calibration standards and quality control samples is concerned, different labs use different approaches. In general, the calibrators used for the validation should be prepared from... 

Prepare 1/20 dilutions of samples, standards, and quality control specimens using assay diluent, and add 150 pL to each of the microtiter plate wells Cover the plate with plastic film, and incubate at 37°C for 1 h... 

Specifications, Standards, Quality Control, and Health and Safety Factors. APA-The Engineered Wood Association represents the softwood plywood and oriented strandboard industries in the areas of specification, standards, and quality control (QC). An APA product standard, PS1-95 (6), discusses the above areas in detail. The following listing summarizes plywood characteristics covered in PS1-95. 

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