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Hydrometers

Hydrometers

Types of Hydrometers

Specific Gravity is the standard scale for what a hydrometer measures, choose plain or combined forms. Specific gravity is the ratio of the density of your sample at 60°F to the density of water at 60°F.

Plain Form hydrometers do not have a built-in thermometer; use a separate thermometer to measure the temperature .

Combined Form hydrometers that have a thermometer built into the body or stem to measure the temperature of the sample.

API scale hydrometers are selected by the American Petroleum Institute (API), the United States Bureau of Mines, and the National Institute of Standards and Technology (NIST) as the standard scale for petroleum products.

Baumé hydrometers are used for liquids heavier than water, such as syrups.

Brix Scale hydrometers are used by the sugar industry. The degrees of the scale are equal to the percentage of sucrose by weight at standard temperatures.

Salt hydrometers are graduated in % saturation or % by weight of salt in solution.

Alcohol (Tralle and Proof Scales) hydrometers measure directly in percentage ethyl alcohol by weight in water from 0 to 100%. The Proof scale indicates the proof of alcohol from 0 to 200 proof. Proof is twice the percentage of alcohol by volume in solution.

Soil hydrometers determine the specific gravity of a suspension, enabling the percentage of particles of a certain equivalent particle diameter to be calculated.

How to Read a Hydrometer

  1. Pour your sample into a smooth, clear cylinder or jar that is dry or well rinsed with a portion of the sample.
  2. Make sure that your sample is thoroughly mixed before testing.
  3. Immerse the hydrometer in the liquid to a point slightly below the place where it naturally floats. Make sure the hydrometer and liquid are at rest and free of air bubbles.
  4. Measure the temperature of the sample. Ideally, the sample temperature should be equal to the temperature standard of the hydrometer, generally 60°F. If temperature differences are unavoidable, correction tables can help to adjust readings— call our Application Specialists for information.
  5. Take your reading at the point where the surface of the liquid crosses the hydrometer.

We are proud to offer nonhazardous and environmentally friendly, mercury-free alternatives.


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H-B Durac Hydrometer Plain Form, 10 to 16° API, ASTM 23H, 163 mm

  • Product Type: Hydrometer
  • Form: Plain
  • Length: 163 mm
Mfg Part# 618932430
DO-08299-34
Usually ships in 9 days.
$40.00 USD/EACH
$34.00 USD/EACH

Qty:

H-B DURAC API Plain Form Hydrometer, 59/71 API; 1/ea

  • Product Type: Glass Hydrometer
  • Division: 0.2°
  • Length: 166mm mm
Mfg Part# 618030630
DO-90310-21
Usually ships in 9 days.
$48.00 USD/EACH
$40.80 USD/EACH

Qty:

H-B DURAC API Plain Form Hydrometer, 9/21 API; 1/ea

  • Product Type: Glass Hydrometer
  • Division: 0.2°
  • Length: 166mm mm
Mfg Part# 618030130
DO-90310-16
Usually ships in 9 days.
$53.00 USD/EACH
$45.05 USD/EACH

Qty:

H-B Instrument Specific Gravity Hydrometer Set, 8 Plain Form, 0.700 to 2.000

  • Specific gravity range: 0.7 Minimum
  • Product Type: Hydrometer
  • Specific gravity range: 2 Maximum
Mfg Part# 618018030
DO-08297-41
Available for order
or call 1-888-358-4712 to order
$376.00 USD/SET of 8
$319.60 USD/SET of 8

Qty:

H-B Instrument Hydrometer, -39 to 51° API, Combined Form

  • Product Type: Hydrometer
  • Form: Combination
  • Qty/ea: 1
Mfg Part# 618230430
DO-08299-81
In stock.
$57.00 USD/EACH
$48.45 USD/EACH

Qty:

H-B Durac Plain-Form Glass Hydrometer, 1.600 to 1.820 SG/0.002

  • Specific gravity range: 1.6 Minimum
  • Product Type: Hydrometer
  • Specific gravity range: 1.82 Maximum
Mfg Part# 618017530
DO-08298-90
In stock.
$31.00 USD/EACH
$26.35 USD/EACH

Qty:

H-B Durac Plain-Form Glass Hydrometer, ASTM 126H, 1.050-1.100 SG/0.001

  • Specific gravity range: 1.05 Minimum
  • Product Type: Hydrometer
  • Specific gravity range: 1.1 Maximum
Mfg Part# 618913530
DO-08297-82
In stock.
$50.00 USD/EACH
$42.50 USD/EACH

Qty:

H-B Durac Plain-Form Glass Hydrometer, 1.000 to 1.600 SG/0.005

  • Specific gravity range: 1 Minimum
  • Product Type: Hydrometer
  • Specific gravity range: 1.6 Maximum
Mfg Part# 618017030
DO-08298-80
In stock.
$30.00 USD/EACH
$25.50 USD/EACH

Qty:

H-B Durac Plain-Form Glass Hydrometer, 1.150/1.200 SG, ASTM 114H

  • Product Type: Glass Hydrometer
  • Specific gravity range: 1.150 Minimum
  • Specific gravity range: 1.200 Maximum
Mfg Part# 618911830
DO-90310-57
Usually ships in 8 days.
$63.00 USD/EACH
$53.55 USD/EACH

Qty:

H-B DURAC API Plain Form Hydrometer, 69/81 API; 1/ea

  • Product Type: Glass Hydrometer
  • Division: 0.2°
  • Length: 166mm mm
Mfg Part# 618030730
DO-90310-22
Usually ships in 9 days.
$47.00 USD/EACH
$39.95 USD/EACH

Qty:

H-B DURAC API Plain Form Hydrometer, 19/31 API; 1/ea

  • Product Type: Glass Hydrometer
  • Division: 0.2°
  • Length: 166mm mm
Mfg Part# 618030230
DO-90310-17
Usually ships in 9 days.
$48.00 USD/EACH
$40.80 USD/EACH

Qty:

H-B DuracCombined Form Hydrometer,0.600-0.710SG/0.001

  • Specific gravity range: 0.600 Minimum
  • Product Type: Glass Hydrometer
  • Specific gravity range: 0.710 Maximum
Mfg Part# 618210030
DO-90310-08
Usually ships in 8 days.
$103.00 USD/EACH
$87.55 USD/EACH

Qty:

H-B Durac Plain-Form Glass Hydrometer, 1.200 to 1.420 SG/0.002

  • Specific gravity range: 1.2 Minimum
  • Product Type: Hydrometer
  • Specific gravity range: 1.42 Maximum
Mfg Part# 618017330
DO-08298-86
In stock.
$30.00 USD/EACH
$25.50 USD/EACH

Qty:

H-B Durac Precision Plain-Form Glass Hydrometer, 0.820 to 0.890 SG/0.0005

  • Specific gravity range: 0.82 Minimum
  • Product Type: Hydrometer
  • Specific gravity range: 0.89 Maximum
Mfg Part# 618010430
DO-08298-59
Usually ships in 10 days.
$37.00 USD/EACH
$31.45 USD/EACH

Qty:

H-B DURAC Hydrometer, 1.000/1.060 Urine Squibb

  • Product Type: Glass Hydrometer
  • Division: 0.0005
  • Length: 130mm mm
Mfg Part# 618099130
DO-90310-52
Usually ships in 13 days.
$42.00 USD/EACH
$35.70 USD/EACH

Qty:

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