Manufactured strictly in accordance with all applicable ASTM specifications, these units have become the industry standard for close, accurate readings. All instruments in this series are suitable for certification and as such serve as primary reference standards in many governmental and private laboratories.
- Graduated in American Petroleum Institute scale in accordance with ASTM Hydrometer Standards E-100; API standard 526
- As required for ASTM Standard D 287
- Federal Test Method Standard No. 791, method 401.4; ANSI Z11.31; and API Standard 526
- All sizes require tall cylinder