ASTM E100
Full Name
ASTM E100 – Standard Specification for ASTM Hydrometers
Scope
ASTM E100 provides the standard specifications for liquid-in-glass hydrometers used for determining the specific gravity of liquids. This standard ensures the accuracy and reliability of hydrometers by outlining specific requirements for their construction, dimensions, materials, and performance.
Key aspects covered in ASTM E100 include:
- Types of hydrometers: the standard defines various types of hydrometers, including those with a single scale, multiple scales, and those calibrated for specific liquids or temperature ranges.
- Materials and construction: ASTM E100 specifies the quality of glass used in hydrometer construction, ensuring its clarity and resistance to chemical attack. It also defines requirements for the scale markings, ballast material, and overall design for durability and stability.
- Dimensional requirements: the standard sets forth precise dimensional tolerances for the hydrometer bulb, stem, and overall length to ensure consistent buoyancy and accurate readings.
- Graduation and calibration: ASTM E100 outlines the specific gravity range, scale divisions, and permissible tolerances for accurate readings. It emphasizes the importance of proper calibration and verification procedures.
- Testing methods: the standard outlines methods for verifying the accuracy of hydrometers, including procedures for determining scale error and checking the density of liquids used for calibration.
Adherence to ASTM E100 ensures that hydrometers meet the required standards for precision and reliability, enabling accurate determination of liquid specific gravity in various industries.
ASTM E100 Accredited Laboratory
Applied Testing & Geosciences, LLC is accredited for performing tests using the ASTM E100 standard.
Contact us today to learn more about our testing capabilities and how we can support your business.
Resources
Keywords
hydrometers; density; specific gravity; liquids; temperature; scale; calibration; accuracy