Standard Welding Symbols – Changes to AWS A2.4:2020
Standard welding symbols facilitate communication from the designer to fabrication (“welders”) and inspection personnel. To the common observer, these symbols may appear as cryptic shapes […]
Jet Fuel Specifications
Due to the millions of years of high pressure exerted on the decomposed phytoplankton and algae that once lived in shallow seas, the earth possesses petroleum, […]
Asbestos: How to Properly Remove And Dispose During Construction
Many construction projects today involve updating existing buildings and homes, or demolition to make room for new infrastructure. Unfortunately, from the 1920s to 1980s, many […]
ANSI/ADA 111-2019 Adhesion Test Methods To Tooth Structure
From the moment your teeth eject in your early life, they are fraught with peril. Covered by plaque and threatened by the semi-daily habit of […]
SAE J 2805-2020: Measuring Noise Emitted By Road Vehicles
In a natural environment, certain ambient noises persist. A chirping bird, a scuttling squirrel, a tree branch bending in the wind—these familiar sounds are constant. […]
ANSI Z80.21-2020: Clinical Visual Acuity Charts
Cover your right eye. Read the letter on the first line. Cover your left eye. Read it again. Now line two, and so on. This […]
ANSI/ASHRAE 146-2020: Testing and Rating Pool Heaters
ANSI/ASHRAE 146-2020: Methods Of Testing And Rating Pool Heaters has been revised. The Standard for Pool Water Heaters Swimming in water warmed to one’s comfort […]
ANSI C18.2M: Portable Rechargeable Batteries Specifications
A rechargeable battery is an electronic device’s heart, and, while they don’t pump anything, batteries supply laptops, smart phones, and other electronics with their electric […]
ASTM Diesel Fuel Oils Standard Specification
Diesel Fuel Background Today, millions of trucks undergo road-bound treks to transport goods. The diesel engines that power these vehicles support this system. These engines, […]
ISO/IEC 17000:2020 Conformity Assessment Vocabulary Released
ISO/IEC 17000, the international standard for vocabulary and general principles related to conformity assessment, has been revised. Like the previous iteration of this standard, ISO/IEC […]