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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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EW-08298-38 Image is representative of item

H-B Durac Plain-Form Polycarbonate Hydrometer, 1.000-1.180 SG/0.002 Div

Specific gravity range Minimum 1.000,Specific gravity range Maximum 1.180,Length mm 300
EW-08298-38
In stock.
$83.00 USD/EACH

Qty:

H B Durac Precision Plain Form Glass Hydrometer 1 000 to 1 070 SG 0 0005 (Representative photo only)

H-B Durac Precision Plain-Form Glass Hydrometer, 1.000 to 1.070 SG/0.0005

Specific gravity range Minimum 1,Specific gravity range Maximum 1.07,Product Type Hydrometer
EW-08298-65
In stock.
$25.00 USD/EACH

Qty:

EW-08298-40 Image is representative of item

H-B Durac Plain-Form Polycarbonate Hydrometer, 1.050-1.220 SG/0.002 Div

Specific gravity range Minimum 1.050,Specific gravity range Maximum 1.220,Length mm 300
EW-08298-40
In stock.
$83.00 USD/EACH

Qty:

H B Durac Plain Form Glass Hydrometer 1 000 to 1 220 SG 0 002 (Representative photo only)

H-B Durac Plain-Form Glass Hydrometer, 1.000 to 1.220 SG/0.002

Specific gravity range Minimum 1,Specific gravity range Maximum 1.22,Product Type Hydrometer
EW-08298-84
In stock.
$22.00 USD/EACH

Qty:

Buy More Save More – Quantity Discounts H B Durac Combined Alcohol Glass Hydrometer 0 100 Tralle 0 200 Proof (Representative photo only)

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

Length mm 305,Range 0 to 100% Tralle, 0 to 200 Proof,Product Type Hydrometer
EW-08285-58
In stock.
$71.00 USD/EACH

Qty:

EW-08298-44 Image is representative of item.

H-B Durac Plain-Form Polycarbonate Hydrometer, 10 to 100% Salt/1% Div

Length mm 300,Range 10 to 100,Product Type Hydrometer
EW-08298-44
In stock.
$83.00 USD/EACH

Qty:

EW-08298-41 Image is representative of item

H-B Durac Plain-Form Polycarbonate Hydrometer, 1.200-1.420 SG/0.002 Div

Specific gravity range Minimum 1.200,Specific gravity range Maximum 1.420,Length mm 300
EW-08298-41
In stock.
$83.00 USD/EACH

Qty:

H B Durac Dual Scale Glass Hydrometer 1 000 2 000 SG 0 02 0 70 Baume (Representative photo only)

H-B Durac Dual-Scale Glass Hydrometer, 1.000-2.000 SG 0.02/0-70 Baume

Baume range (min) degrees 0,Baume range (max) degrees 70,Product Type Hydrometer
EW-08299-66
In stock.
$20.00 USD/EACH

Qty:

H B Instrument Specific Gravity Hydrometer Set 8 Plain Form 0 700 to 2 000 (Representative photo only)

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

Specific gravity range Minimum 0.7,Specific gravity range Maximum 2,Product Type Hydrometer
EW-08297-41
In stock.
$254.00 USD/SET

Qty:

Buy More Save More – Quantity Discounts Hydrometer Case for 380 mm Length Hygrometer (Representative photo only)

Hydrometer Case for 380 mm Length Hygrometer

Length mm Fits one hydrometer up to 15" L (381 mm),Product Type Hydrometer Case,Brand H-B Instrument Company
EW-08285-97
In stock.
$51.00 USD/EACH

Qty:

EW-08297-38 H-B Instruments Glass Hydrometer, 0 to 100 Percent Saturation of Salt, Plain Form

H-B Instrument Glass Hydrometer, 0 to 100 Percent Saturation of Salt, Plain Form

Brix scale range (min) % 0,Brix scale range (max) % 100%,Length mm 275
EW-08297-38
In stock.
$22.00 USD/EACH

Qty:

EW-08298-42 Image is representative of item

H-B Durac Plain-Form Polycarbonate Hydrometer, 1.400-1.620 SG/0.002 Div

Specific gravity range Minimum 1.400,Specific gravity range Maximum 1.620,Length mm 300
EW-08298-42
In stock.
$83.00 USD/EACH

Qty:

EW-08298-26 Image is representative of item.

H-B Durac Plain-Form Polycarbonate Hydrometer, 0 to 12 Baume/0.2 Div

Baume range (min) degrees 0,Baume range (max) degrees 12,Length mm 255
EW-08298-26
In stock.
$83.00 USD/EACH

Qty:

H B Durac Plain Form Glass Hydrometer 1 200 to 1 420 SG 0 002 (Representative photo only)

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

Specific gravity range Minimum 1.2,Specific gravity range Maximum 1.42,Product Type Hydrometer
EW-08298-86
In stock.
$22.00 USD/EACH

Qty:

H B Durac Ethyl Alcohol Glass Hydrometer 75 95 Proof 0 2  (Representative photo only)

H-B Durac Ethyl Alcohol Glass Hydrometer, 75-95% Proof/0.2%

Length mm 300,Range 75 to 95%,Product Type Hydrometer
EW-08296-09
In stock.
$31.00 USD/EACH

Qty:

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