Bel-Art Products H-B DURAC 79/91 Degree API ASTM 9H Hydrometer p/n 618930900

THESE PLAIN FORM HYDROMETERS ARE AVAILABLE IN A VARIETY OF MODELS MEASURING THE RELATIVE DENSITIES (SPECIFIC GRAVITY) OF OIL AND PETROLEUM PRODUCTS IN VARIOUS RANGES FROM -1° TO 96°API IN ACCORDANCE WITH THE AMERICAN PETROLEUM INSTITUTE (API) AND THE AMERICAN SOCIETY OF TESTING MATERIALS (ASTM) E100 STANDARDS. UL STYLE""MARGIN-TOP0PX; PADDING-TOP 5PX; PADDING-BOTTOM 5PX;"" CONFORM TO THE ACCURACY REQUIREMENTS OF ASTM HYDROMETERS LEAD FREE BALLAST AND GLASS INDIVIDUALLY SERIALIZED TEMPERATURE STANDARDIZATION 60°F/60°F HAND INSPECTED BY OUR U.S. QUALITY TEAM PACKAGED WITH A MULTI-LANGUAGE (ENGLISH FRENCH GERMAN ITALIAN PORTUGUESE AND SPANISH) STATEMENT OF ACCURACY INDICATING ACCURACY TRACEABLE TO NIST NOTE HYDROMETERS SHOULD BE STORED IN A CLEAN DRY SAFE PLACE AND SHOULD NOT BE SUBJECTED TO EXTREME TEMPERATURES.