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Home  >  Hydrometers Special Applications

Hydrometers Special Applications

Hydrometers Special Applications

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 Ethyl Alcohol Glass Hydrometer, 20-40% Proof/0.2%

  • Product Type: Hydrometer
  • Length: 300 mm
  • Range: 20 to 40%
Mfg Part# 618074330
DO-08296-03
In stock.
$43.00 USD/EACH
$36.55 USD/EACH

Qty:

H-B Durac Ethyl Alcohol Glass Hydrometer, 185-206% Proof/0.2%

  • Product Type: Hydrometer
  • Length: 300 mm
  • Range: 185 to 206%
Mfg Part# 618075030
DO-08296-21
In stock.
$44.00 USD/EACH
$37.40 USD/EACH

Qty:

H-B Instrument Isopropyl Alcohol Hydrometers; Range 0 to 50% and 1% Accuracy

  • Product Type: Hydrometer
  • Range: 0 to 50
  • Qty/ea: 1
Mfg Part# 618094030
DO-08299-71
In stock.
$46.00 USD/EACH
$39.10 USD/EACH

Qty:

H-B DURAC Hydrometer, 19/30% Alcohol Proof Precision

  • Product Type: Glass Hydrometer
  • Division: 0.1%
  • Length: 368mm mm
Mfg Part# 618075330
DO-90310-33
Available for order
or call 1-888-358-4712 to order
$231.00 USD/EACH
$196.35 USD/EACH

Qty:

H-B DURAC Hydrometer, 189/200% Alcohol Proof Precision

  • Product Type: Glass Hydrometer
  • Division: 0.1%
  • Length: 368mm mm
Mfg Part# 618077030
DO-90310-50
Available for order
or call 1-888-358-4712 to order
$231.00 USD/EACH
$196.35 USD/EACH

Qty:

H-B DURAC Hydrometer, 59/70% Alcohol Proof Precision

  • Product Type: Glass Hydrometer
  • Division: 0.1%
  • Length: 368mm mm
Mfg Part# 618075730
DO-90310-37
Available for order
or call 1-888-358-4712 to order
$231.00 USD/EACH
$196.35 USD/EACH

Qty:

H-B B61807-4400 Durac Ethyl Alcohol Glass Hydrometer, 40-60 Proof/0.2%

  • Product Type: Hydrometer
  • Length: 300 mm
  • Range: 40 to 60%
Mfg Part# 618074430
DO-08296-05
In stock.
$43.00 USD/EACH
$36.55 USD/EACH

Qty:

H-B DURAC Hydrometer, 30/50% Alcohol Proof

  • Product Type: Glass Hydrometer
  • Division: 0.002%
  • Length: 325mm mm
Mfg Part# 618070130
DO-90310-26
Available for order
or call 1-888-358-4712 to order
$107.00 USD/EACH
$90.95 USD/EACH

Qty:

H-B Durac Combined Alcohol Glass Hydrometer, 0-100% Tralle/0-200% Proof

  • Product Type: Hydrometer
  • Division: 1% Tralle
    2% Proof
  • Form: Combo
Mfg Part# 618078030
DO-08285-58
In stock.
$66.00 USD/EACH
$56.10 USD/EACH

Qty:

H-B DURAC Hydrometer, 29/40% Alcohol Proof Precision

  • Product Type: Glass Hydrometer
  • Division: 0.1%
  • Length: 368mm mm
Mfg Part# 618075430
DO-90310-34
Available for order
or call 1-888-358-4712 to order
$231.00 USD/EACH
$196.35 USD/EACH

Qty:

H-B DURAC Hydrometer, 0.990/1.040 kg/L Draft Survey

  • Product Type: Glass Hydrometer
  • Division: 0.0005 kg/L
  • Length: 330 mm mm
Mfg Part# 618090530
DO-90310-51
Available for order
or call 1-888-358-4712 to order
$95.00 USD/EACH
$80.75 USD/EACH

Qty:

H-B DURAC Hydrometer, 69/80% Alcohol Proof Precision

  • Product Type: Glass Hydrometer
  • Division: 0.1%
  • Length: 368mm mm
Mfg Part# 618075830
DO-90310-38
Available for order
or call 1-888-358-4712 to order
$231.00 USD/EACH
$196.35 USD/EACH

Qty:

H-B Durac Ethyl Alcohol Glass Hydrometer, 60-80% Proof/0.2%

  • Product Type: Hydrometer
  • Length: 300 mm
  • Range: 60 to 80%
Mfg Part# 618074530
DO-08296-07
In stock.
$43.00 USD/EACH
$36.55 USD/EACH

Qty:

H-B DURAC Hydrometer, 45/65% Alcohol Proof

  • Product Type: Glass Hydrometer
  • Division: 0.002%
  • Length: 325mm mm
Mfg Part# 618070230
DO-90310-27
Available for order
or call 1-888-358-4712 to order
$107.00 USD/EACH
$90.95 USD/EACH

Qty:

H-B DURAC Hydrometer, 99/110% Alcohol Proof Precision

  • Product Type: Glass Hydrometer
  • Division: 0.1%
  • Length: 368mm mm
Mfg Part# 618076130
DO-90310-41
Available for order
or call 1-888-358-4712 to order
$231.00 USD/EACH
$196.35 USD/EACH

Qty:

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Home  >  Hydrometers Special Applications