Standardized U.S.A Hydrometers A.S.T.M. E100 – A.S.T.M. D287 (Gas) Hydrometers for the control of gas, such as butane and propane. They are calibrated for a low surface tension (17.5 mN/m ). Reading below meniscus Supplied in individual plastic box.
| Item Code | Standard No. | Range | Division | Tp. | Temp. Range |
| 3494LT050/15-qp | ASTM 310H | 500-650 kg/m3 | 1 | 15°C | 0+35°C |
| 3494LT050/60-qp | ASTM 101H62 | 500-650 Sp.Gr | 0.001 | 60/60°F | 30+90°F |
| 3490LT050/15-qp | ISO393 NF41008 | 0.500-0.550 | 0.001 g/ml | 15°C | 0+30°C |
