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Three red darts find a bulls eye to depict accuracy and precision in ISO 5725-2:2025 that is repeatable.
ANSI | Laboratory

ISO 5725-2:2025 – Accuracy Method For Repeatability

ByBrad Kelechava February 26, 2026

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…

Rusty industrial pipeline flange with corroded bolts and a weathered metal surface that need a salt spray test that complies with ASTM B117-25 to prevent corrosion.
ANSI | ASTM Testing | Metals and Mining

ASTM B117-26: Standard Practice for Operating Salt Spray (Fog) Apparatus

ByMatthew Fowler January 23, 2026January 23, 2026

Even the most durable or permanent items can at some point deteriorate. That doesn’t mean these qualities should be ignored. However, the ability to remain…

Laboratory using high-precision microscope slides and cover glasses that adhere to ISO 8255-1:2017.
ANSI | Laboratory

ISO 8255-1:2017—Microscope Cover Glasses

ByAlexandra Schirn July 21, 2025July 24, 2025

Scientific laboratories need high-precision microscope slides and cover glasses for a wide range of uses, ranging from simple optical microscopy to more advanced cytology and…

Woman applying sunscreen at the beach that complied with ISO 2444:2019 in vivo determination of SPF requirements.
ANSI | Cosmetics | Laboratory

ISO 24444:2019— In Vivo Determination of SPF

ByAlexandra Schirn April 9, 2025May 20, 2025

The introduction of an SPF (Sun Protection Factor) began in the 1930s. Austrian chemist Franz Greiter, inspired by a sunburn while climbing a mountain, developed…

Researcher in a laboratory conducting gut microbiome research that adheres to ISO standards.
ANSI | Laboratory | Quality Management

ISO Standards in Gut Microbiome Research

ByAlexandra Schirn April 3, 2025June 4, 2025

We are quite literally full of bacteria. In fact, humans have more bacteria in their gut than cells in their body. The gut is thereby…

Frozen case of samples being pulled from ultra-low temperature freezer.
ANSI | Laboratory

A Guide to Maintaining an Ultra-Low Temperature Freezer

ByGuest Contributor February 18, 2025June 4, 2025

Ultra-low freezers are an essential piece of lab equipment—and for good reason. They play a critical role in preserving and storing biological samples at temperatures…

Cooked white rice that went through the rice milling process that adheres to ISO 6646:2011 laboratory food testing requirements.
ANSI | Food Safety | Laboratory

ISO 6646:2011— Rice (Oryza sativa L.)

ByAlexandra Schirn January 31, 2025June 4, 2025

There are over 40,000 varieties of cultivated rice (the grass species Oryza sativa) worldwide. Every continent other than Antarctica produces some variety of rice: the…

Working with a pipette and colorful materials in a NSF/ANSI 42-2024 Class II biosafety cabinet.
ANSI | Laboratory

NSF/ANSI 49-2024: Biosafety Cabinets Design and Performance

ByBrad Kelechava January 10, 2025September 22, 2025

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…

Scientist holding conical flask with reagent water, adhering to ASTM D1193-24, in a clinical laboratory.
ANSI | Laboratory

ASTM D1193-24: Reagent Water

ByAlexandra Schirn December 23, 2024June 4, 2025

Since the primary goal of every laboratory is to produce accurate and reliable results, assuring the quality of reagent water (i.e., highly purified water) is…

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