A Specific Gravity Hydrometer calibrated to show the ratio of a mass of liquid to an equivalent volume of distilled water@ 60 °F.
  Manufactured in strict accordance to specifications for ASTM (American Society for Testing and Materials) for accuracy and design. All instruments are suitable for certification for use as a primary reference standard with NIST traceability
  
| Specifications: | 
 
| Range | 
0.760 to 0.830 | 
 
| Subdivision  | 
0.0005 | 
 
| Tolerance | 
+/- 0.0005 | 
 
| Length | 
325 mm / 12.75" | 
 
 
The 450 mL hydrometer jar should be used with this instrument 
 |