15mL KIMAX® Clear N51-A Borosilicate Glass Dropper Bottles with Ground Glass Joint Pipet Dropper. KIMAX® bottle is provided with a medium length Ground Glass Joint pipet dropper and rubber nipple. Bottle is suitable for use in determining the oil absorption of pigments (ASTM D281). The 125mL size is KG-35 ASTM 438 Type 1 Class B glass whereas all others are KG-33 ASTM 438 Type 1 Class A. The 30 and 60mL sizes are designed from Federal Specification NNN-B-1194, Type II, Class 2, Grade B requirements. Capacity: 15mL (1oz). Approx. Dia. x Ht.: 37 x 106mm. Dropper Joint: 12/18. Dropper Capacity: 1mL. Kimble® #: 15035-15.