Thermocouples: Calibration Tables, Types, Specifications, and Standards
When two dissimilar metals joined at two junctions, they generate what is known as an electromotive force (emf). This emf arises due to varying temperatures […]
Laboratory
Detecting Bacteria in the Food Chain: ISO 21528-2:2017
International standard ISO 21528-2: 2017: Microbiology of the food chain – Horizontal method for the detection and enumeration of Enterobacteriaceae specifies a method by which users […]
Multiple Nucleic Acid Assays
Nucleic acid testing is the fastest growing field in laboratory medicine. With a rising emphasis on genetics, scientists and physicians are looking towards an individual’s […]
Testing Performance of Laboratory Fume Hoods
The standard for testing the performance of laboratory fume hoods (laboratory hoods) has been revised. The latest version, ANSI/ASHRAE STANDARD 110-2016 – Methods of Testing […]
Evaluation of Precision of Quantitative Measurement Procedures
Precision, accuracy, reproducibility, and repeatability are key components of the scientific method. Without precision, the validity of laboratory experiments can come into question. Because of […]
ISO 14644-2 2015 Revision of ISO 14644-2:2000
This revision of ISO 14644-2 2015 Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration emphasizes the need to consider a […]
ISO 14644-1 2015 Version is Now Available
ISO 14644-1:2015 Cleanrooms and Associated Controlled Environments — Part 1: Classification of Air Cleanliness by Particle Concentration specifies classes of air and specifies the standard […]
Cheesecloth
Cheesecloth finds wide use in household, industrial, agricultural, and laboratory applications. For example, it appears in both ANSI ATCC ASN-002-2011: Authentication of Human Cell Lines […]
Cleanroom and Controlled Environment Attire
Cleanrooms and other controlled environments are aseptic zones that are crucial for the operations of many different industries. They serve as venues for food processing, […]