Biosafety Level 3 (BSL-3) Ventilation Systems, ANSI/ASSP Z9.14-2020
Analyzed and studied in laboratories each day, biological agents and toxins can be invisible, malicious storms, and much like how the presence of these pathogens […]
Laboratory
NSF/ANSI 49-2019: Biosafety Cabinets Design and Performance
Biosafety Cabinetry and NSF/ANSI 49 Biosafety cabinets (BSCs) come in three classes. The higher the class, the greater the protection afforded to personnel, products, and […]
Class II Biosafety Cabinets, as Specified in NSF/ANSI 49-2019
Biosafety cabinetry protects personnel, products, and the surrounding environment from hazards that arise when working with pathogenic agents. The degree of protection provided, however, is […]
Laboratory Ventilation Package: ANSI/AIHA/ASSE Z9.5 and ANSI/ASHRAE 110
Carried out by, among other processes, the expansion and contraction of the lungs, the innate act of breathing can give dangerous fumes and other gaseous hazards […]
ISO 5725-2:2019 – Accuracy Method For Repeatability
Through the scientific method, repeatability and reproducibility fortify accuracy. Unfortunately, differing operators, equipment, calibration, environment, and time introduce variations and potential inaccuracies in measurements. An […]
ISO 14644-3:2019, Cleanrooms & Controlled Environments, Test Methods
Excellence is expected in any industrial activity. Sometimes, this careful assuredness is an excessive welcome; a means to go beyond the bare minimum to instill […]
NFPA 45, Standard on Fire Protection for Laboratories Using Chemicals, 2019 Edition
The 2019 edition of NFPA 45: Standard On Fire Protection For Laboratories Using Chemicals has been released. Fires in Laboratories Handling Chemicals A pyrophoric material […]
Basic Cleanroom Requirements and Classifications
It’s said that cleanliness is next to godliness, but most manufacturers would be happy with knowing that their products are free from contamination. This is […]
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 […]
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 […]