ASTM Density Hydrometers 300HL to 320H

Developed jointly with ISO (International Standards Organization) standards to serve those users involved in the international transport of petroleum products, this series has been adopted by ASTM and their use sanctioned as the metric standard for petroleum hydrometers. Graduated in Kg/M3 (Kilograms per cubic meter) @ 15 °C for petroleum products.

ASTM Density Thermo-Hydrometers

These hydrometers are fabricated with a thermometer in the lower body for convenience to the user. For any particular density range, three temperature ranges are available, coded as follows: L=Low -20/65 °C, M=Medium 0/85 °C , or H=High +20/105 °C. The units listed below are the most popular. Variations are available on special request.

Hydrometers Calibrated @ 3 Test Points per ASTM

ASTM No. Catalog No Density Range Divs Temp range, °C Div Length
300HL 40300HL-C 600 to 650 0.5 -20 to 65 °C 1 380mm
301HL 40301HL-C 650 to 700 0.5 -20 to 65 °C 1 380mm
302HL 40302HL-C 700 to 750 0.5 -20 to 65 °C 1 380mm
303HL 40303HL-C 750 to 800 0.5 -20 to 65 °C 1 380mm
304HL 40304HL-C 800 to 850 0.5 -20 to 65 °C 1 380mm
304HM 40304HM-C 800 to 850 0.5 0 to 85 °C 1 380mm
305HL 40305HL-C 850 to 900 0.5 -20 to 65 °C 1 380mm
305HM 40305HM-C 850 to 900 0.5 0 to 85 °C 1 380mm
306HL 40306HL-C 900 to 950 0.5 -20 to 65 °C 1 380mm
306HM 40306HM-C 900 to 950 0.5 0 to 85 °C 1 380mm
307HL 40307HL-C 950 to 1000 0.5 -20 to 65 °C 1 380mm
307HH 40307HH-C 950 to 1000 0.5 +20 to 105 °C 1 380mm
308HL 40308HL-C 1000 to 1050 0.5 -20 to 65 °C 1 380mm
308HH 40308HH-C 1000 to 1050 0.5 +20 to 105 °C 1 380mm
309HL 40309HL-C 1050 to 1100 0.5 -20 to 65 °C 1 380mm
309HH 40309HH-C 1050 to 1100 0.5 +20 to 105 °C 1 380mm

Hydrometers Without Calibration

ASTM No. Catalog No Density Range Divs Temp range, °C Div Length
300HL 40300HL 600 to 650 0.5 -20 to 65 °C 1 380mm
301HL 40301HL 650 to 700 0.5 -20 to 65 °C 1 380mm
302HL 40302HL 700 to 750 0.5 -20 to 65 °C 1 380mm
303HL 40303HL 750 to 800 0.5 -20 to 65 °C 1 380mm
304HL 40304HL 800 to 850 0.5 -20 to 65 °C 1 380mm
304HM 40304HM 800 to 850 0.5 0 to 85 °C 1 380mm
305HL 40305HL 850 to 900 0.5 -20 to 65 °C 1 380mm
305HM 40305HM 850 to 900 0.5 0 to 85 °C 1 380mm
306HL 40306HL 900 to 950 0.5 -20 to 65 °C 1 380mm
306HM 40306HM 900 to 950 0.5 0 to 85 °C 1 380mm
307HL 40307HL 950 to 1000 0.5 -20 to 65 °C 1 380mm
307HH 40307HH 950 to 1000 0.5 +20 to 105 °C 1 380mm
308HL 40308HL 1000 to 1050 0.5 -20 to 65 °C 1 380mm
308HH 40308HH 1000 to 1050 0.5 +20 to 105 °C 1 380mm
309HL 40309HL 1050 to 1100 0.5 -20 to 65 °C 1 380mm
309HH 40309HH 1050 to 1100 0.5 +20 to 105 °C 1 380mm

ASTM Density LPG (Liquified Petroleum Gas) Thermo-Hydrometers

Graduated in kilograms per liter @ 15 °C (Kg/M3)

Hydrometers With Calibration

ASTM No. Catalog No Density Range Divs Temp range, °C Div Length ASTM specified test points
310H 40310H-C 500 to 650 1.0 0 to 35 °C 0.5 355mm calibrated @ 650 & 625 (practical limits of our equipment)

Hydrometers Without Calibration

ASTM No. Catalog No Density Range Divs Temp range, °C Div Length
310H 40310H 500 to 650 1.0 0 to 35 °C 0.5 355mm

ASTM Density Hydrometers

Graduated in kilograms per liter @ 15 °C (Kg/M3)

Hydrometers Calibrated @ 3 Test Points per ASTM

ASTM No. Catalog No Density Range Divs Length
311H 40311H-C 600 to 650 0.5 330mm
312H 40312H-C 650 to 700 0.5 330mm
313H 40313H-C 700 to 750 0.5 330mm
314H 40314H-C 750 to 800 0.5 330mm
315H 40315H-C 800 to 850 0.5 330mm
316H 40316H-C 850 to 900 0.5 330mm
317H 40317H-C 900 to 950 0.5 330mm
318H 40318H-C 950 to 1000 0.5 330mm
319H 40319H-C 1000 to 1050 0.5 330mm
320H 40320H-C 1050 to 1100 0.5 330mm

Hydrometers Without Calibration

ASTM No. Catalog No Density Range Divs Length
311H 40311H 600 to 650 0.5 330mm
312H 40312H 650 to 700 0.5 330mm
313H 40313H 700 to 750 0.5 330mm
314H 40314H 750 to 800 0.5 330mm
315H 40315H 800 to 850 0.5 330mm
316H 40316H 850 to 900 0.5 330mm
317H 40317H 900 to 950 0.5 330mm
318H 40318H 950 to 1000 0.5 330mm
319H 40319H 1000 to 1050 0.5 330mm
320H 40320H 1050 to 1100 0.5 330mm

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