Each hydrometer is calibrated in a triple accredited ISO/IEC 17025:2005, A2LA accredited laboratory against equipment whose calibration is traceable to NIST. Individually packaged with a multi-language Statement of accuracy indicating accuracy traceable to NIST. Nist traceable temperature of standardization 60°f/60°f metal ballast individually serialized.
R**H
High quality and still economical.
Works as described. This is technology that is literally hundreds of years old and has stood the test of time as an accurate method of measuring the specific gravity of liquids and solutions. I'm glad that this item is available in nice tight ranges for better precision. It also comes with a serial number and even though it is not 'certified' (you have to pay extra for that), I can send it out for calibration and trace it (and other ones in my shop) through the permanent serial number, making it suitable for use in an accredited lab or manufacturing facility. Also I found the customer service to be friendly and helpful when I had to have a replacement sent due to a shipping mishap.I bought a PLASTIC 250mL graduated cylinder to both store it in and use it for measurements to reduce risk of cracking it with accidental glass-on-glass contact. But it does come with a rigid plastic storage tube.
Trustpilot
1 month ago
3 weeks ago