VEE GEE Hydrometers are manufactured to exacting standards. Each in-strument is individually tested and inspected to insure the highest level of dependability, accuracy, and uniformity. Scales include: API, Alcohol, Battery, Baume, Brix, Calcium Chloride, Liquid Petroleum Gas, Plato, Specific Grav-ity, Sodium Chloride & Soil Analysis.

The hydrometer is an instrument which is constructed on the Archimedes principle that a solid body displaces its own weight of the liquid in which it floats. Hydrometers can be divided into two general classes; namely for liquids heavier than water and for liquids lighter than water. The base hydrometer scale is Specific Gravity, in which distilled water equals 1.000 as the initial point. Liquids lighter than water are scaled below 1.000 specific gravity and liquids heavier than water are scaled above 1.000 specific gravity.

Many other scales are commonly used, such as API, Brix, Baume, Plato, etc. All of which are convertible into specific gravity by formula.

Hydrometers are usually calibrated at 60°F/60°F. To determine the density of a liquid, the liquid should be at 60°F. If the temperature varies, the liquid will either contract or expand, depending upon the temperature. Therefore, the density fluctuates with the temperature. Where there is a variation from the standard 60°F, corrections must be applied to the hydrometer reading. To assure proper corrections, a separate accurate thermometer should be used, or a hydrometer in combination with a thermometer, which is sometimes referred to as a “thermohydrometer.”

The correct method of reading a hydrometer follows:

If the liquid is not sufficiently clear for readings to be made in this manner, read from above the surface and estimate as accurately as possible the point to which the liquid rises on the hydrometer stem. Since hydrometers are calibrated to give correct indications when read at the principal surface of the liquid, correct the reading just taken at the upper edge of the meniscus by an amount equal to this height above the principal surface of the liquid. The amount of correction can be determined with the sufficient accuracy for most purposes by taking a few readings on the upper and lower meniscus in a clear liquid of the same character as that being tested and noting the differences.

Scale

Body

Thermometer

Hydrometers Explained . . .Stem

Fig. 1

A. Observe a point below the plane of the liquid sur face. The sur face should appear as an ellipse (Fig. 1).

B. The line of vision is raised until the surface, seen first as an ellipse, becomes a straight line (Fig. 2).

C. The point at which this line cuts the hydrometer scale is the reading of the instrument (Fig. 3).

Point Of Reading

Fig. 2

Fig. 3

°API @ 60°F =141.5

SpecificGravity

60°F60°F@( )

Cat. No.6721H6722H6723H6724H6725H6726H6727H6728H6729H6730H6731H6732H6733H6734H6735H6736H6737H6738H6739H

ASTM No. 21H22H23H24H25H26H27H28H29H30H31H32H33H34H35H36H37H38H39H

Subdivision 0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°

Length (mm)165165165165165165165165165165165165165165165165165165165

API Range 0 to 6°

5 to 11°10 to 16°15 to 21°20 to 26°25 to 31°30 to 36°35 to 41°40 to 46°45 to 51°50 to 56°55 to 61°60 to 66°65 to 71°70 to 76°75 to 81°80 to 86°85 to 91°90 to 96°

API, ASTM

- 131.5

The API Scale was selected in 1921 by the American Petroleum Institute (API), the U.S. Bureau of Mines, and the National Institute of Standards and Technology (NIST) as the standard hydrometer scale for petroleum products. The API Scale is based on the following formula:

The thermometer scale for VEE GEEHydrometers (w/ Thermometers) is located in the body. A correction scale for conversion of readings to 60°F is printed opposite the temperature scale.

General Specifications for VEE GEE ASTM Hydrometers: Manufactured in strict accordance to specifications of ASTM (American Society for Testing and Materials) for accuracy and design. All instruments are suitable for certification for use as a primary reference standard with NIST traceability.

60°F

API Scale

Cat. No.6751HTS6752HTS6753HTS6754HTS6755HTS6757HTS

ASTM No. 51H52H53H54H55H57H

Subdivision 0.1°0.1°0.1°0.1°0.1°0.1°

Length (mm)380380380380380380

API Range -1 to 11°9 to 21°

19 to 31°29 to 41°39 to 51°59 to 71°

API, ASTM, w/ Thermometer (SafetyBLUE) 60°F

Thermometer Scale: 0 to +150°F (Subdivision: 2°F)

Cat. No.6608-2TS6608-3TS6608-4TS6608-5TS6608-6TS6608-7TS

6608-11TS6608-12TS

Subdivision 0.2°0.2°0.2°0.2°0.2°0.2°1.0°1.0°

Length (mm)195195195195195195195195

API Range 9 TO 21°

19 TO 31°29 to 41°39 TO 51°49 to 61°59 TO 71°10 TO 45°45 to 90°

API, w/ Thermometer (SafetyBLUE) 60°FThermometer Scale: +10 to +130°F (Subdivision: 2°F)

6722H

6756HTS

6608-2TS

Specific Gravity, also known as relative density, is the ratio of the mass of a solid or liquid to the mass of an equal volume of distilled water. The standard temperature of calibration in the U.S. is 60°F/60°F. All VEE GEE Specific Gravity Hydrometers listed are calibrated at 60°F/60°F.

The thermometer scale for VEE GEE Hydrometers (w/ Thermometers) is located in the body. A correction scale for conversion of readings to 60°F is printed opposite the temperature scale.General Specifications for VEE GEE ASTM Hydrometers: Manufactured in strict accordance to specifications of ASTM (American Society for Testing and Materials) for accuracy and design. All instruments are suitable for certification for use as a primary reference standard with NIST traceability.

Specific Gravity

Cat. No.6602-06602-16602-26602-36602-46602-56602-66602-76602-86602-9

6602-106602-116602-126602-136602-146602-156602-166602-176602-186602-196602-206602-216602-4S6602-5S6602-6S6602-7S6602-9S

6602-10S6602TS-76602TS-8

Specific Gravity Range 0.600 to 0.6700.640 to 0.7100.700 to 0.7700.760 to 0.8300.820 to 0.8900.880 to 0.9500.940 to 1.0101.000 to 1.0701.060 to 1.1301.120 to 1.1901.180 to 1.2501.240 to 1.3101.300 to 1.3701.360 to 1.4301.420 to 1.4901.480 to 1.5501.540 to 1.6101.600 to 1.6701.660 to 1.7301.720 to 1.7901.780 to 1.8501.840 to 1.9200.820 to 0.8900.880 to 0.9500.940 to 1.0101.000 to 1.0701.120 to 1.1901.180 to 1.2501.000 to 1.0701.060 to 1.130

Subdivision 0.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.00050.0010.0010.0010.0010.0010.0010.0010.001

Approx. Length (mm)

330330330330330330330330330330330330330330330330330330330330330330165165165165165165385385

Specific Gravity = Mass of X @ 60°FMass of Distilled Water @ 60°F

Specific GravityCat. No.

6603-16603TS-1

6603-26603-36603-46603-56603-66603-76603-86603-9

6603-106603-116603-126603-13

Specific Gravity Range 1.000 to 1.220

1.000-1.220/Therm 0°F-150°F1.200 to 1.4201.400 to 1.6201.600 to 1.8201.800 to 2.0201.000 to 1.6001.000 to 2.0002.000 to 3.0003.000 to 4.0000.700 to 0.8100.800 to 0.9100.900 to 1.0100.700 to 1.000

Subdivision 0.0020.0020.0020.0020.0020.0020.0050.010.010.01

0.0010.0010.0010.005

Approx. Length (mm)

305305305305305305305305305305305305305305

Cat. No.6601-16601-26601-36601-46601-56601-66601-76601-86601-9

6601-106601-116601-126601-136601-146601-15

Brix Range 0 to 12°9 to 21°

19 to 31°29 to 41°39 to 51°49 to 61°59 to 71°69 to 81°79 to 91°0 to 35°

35 to 70°0 to 70°-5 to 5°5 to 15°

15 to 25°

Subdivision 0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.5°0.5°1.0°0.1°0.1°0.1°

Approx. Length (mm)

330330330330330330330330330330330330330330330

Cat. No.6601TS-16601TS-26601TS-36601TS-46601TS-56601TS-66601TS-76601TS-86601TS-9

6601TS-10 6601TS-11 6601TS-12 6601TS-13 6601TS-14 6601TS-15

Brix Range 0 to 12°9 to 21°

19 to 31°29 to 41°39 to 51°49 to 61°59 to 71°69 to 81°79 to 91°0 to 35°

35 to 70°0 to 70°-5 to 5°5 to 15°

15 to 25°

Subdivision 0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.5°0.5°1.0°0.1°0.1°0.1°

Length (mm)370370370370370370370370370370370370370370370

Brix

VEE GEE Brix Hydrometers are calibrated to show the percentage of sucrose by weight at 20°C. The Brix Scale is based on the following: 1° Brix = 1% sucrose by weight at specificed temperature (20°C). The data of the National Bureau of Standards are used.The thermometer scale for VEE GEE Hydrometers (w/ Thermometers) is located in the body. The thermometers have a range of 0 to +50°C or +30 to 150°F with 1° subdivisions. A correction scale for conversion of readings to 20°C or 68°F is printed opposite the temperature scale.

Brix, w/ Thermometer (Safety-BLUE) (°C)Thermometer Scale: 0 to +50°C (Subdivision: 1°C) 20°C

60°F

60°F

Brix Scale

20°C

Cat. No.6601TS-1F6601TS-2F6601TS-3F

6601TS-10F6601TS-13F

Brix Range 0 to 12°9 to 21°

19 to 31°0 to 35°-5 to 5°

Subdivision 0.1°0.1°0.1°0.5°0.1°

Length (mm)370370370370370

Brix, w/ Thermometer (SafetyBLUE) (°F)Thermometer Scale: +30 to +130°F (Subdivision: 1°F) 68°F

Specific Gravity Scale

Cat. No.6603DS-1

6603DS-1S6603DS-2

6603DS-2S6603DS-36603DS-46603DS-56603DS-6

6603DS-6S6603DS-7

6603DS-13

Baume Range 0 to 26° Heavy0 to 26° Heavy

25 to 42° Heavy42 to 55° Heavy24 to 43° Heavy54 to 65° Heavy64 to 72° Heavy0 to 45° Heavy0 to 41° Heavy0 to 72° Heavy

10 to 100° Light

Subdivision 0.002 / 0.2°

0.0050.002 / 0.2°

0.0050.002 / 0.2°0.002 / 0.2°0.002 / 0.2°0.005 / 0.5°

0.010.010 / 1.0°0.005 / 1.0°

Approx. Length (mm)

305165305165305305305305165305305

Specific Gravity Range 1.000 to 1.2201.000 to 1.2251.200 to 1.4201.200 to 1.4251.400 to 1.6201.600 to 1.8201.800 to 2.0201.000 to 1.600

1.000 to 1.4 1.000 to 2.0000.700 to 1.000

60°FSpecific Gravity & Baume, Dual Scale

Cat. No.6614TS-56614TS-66614TS-76614TS-8

Plato Range 0 to 8.5°

7.5 to 16°15.5 to 24°

0 to 32°

Subdivision 0.1°0.1°0.1°0.5°

Approx. Length (mm)360360360380

Plato, w/ Thermometer (SafetyBLUE)Thermometer Scale (6614TS-5 / 6614TS-6 / 6614TS-7): 0 to +50°C (Subdivision: 1°C)Thermometer Scale (6614TS-8): +30 to +120°F (Subdivision: 1°F) 20°C

Plato Scale

6601TS-1F

6601-15

6614TS-5

6601TS-26602-7

6603-1

6603DS-1

6602TS

Thermometer Scale: 20 to +150°F

Thermometer Scale: 20 to +150°F

Cat. No.67125H67126H67127H67128H67129H67130H67131H67132H67133H67134H67135H67136H67137H67138H67139H67140H67141H

ASTM No. 125H126H127H128H129H130H131H132H133H134H135H136H137H138H139H140H141H

Subdivision 0.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.001

Approx. Length (mm)

260260260260260260260260260260260260260260260260260

Specific Gravity Range 1.000 to 1.0501.050 to 1.1001.100 to 1.1501.150 to 1.2001.200 to 1.2501.250 to 1.3001.300 to 1.3501.350 to 1.4001.400 to 1.4501.450 to 1.5001.500 to 1.5501.550 to 1.6001.600 to 1.6501.650 to 1.7001.700 to 1.7501.750 to 1.8001.800 to 1.850

Cat. No.6782H6783H6784H6785H6786H6787H6788H6789H6790H

ASTM No. 82H83H84H85H86H87H88H89H90H

Subdivision 0.00050.00050.00050.00050.00050.00050.00050.00050.0005

Approx. Length (mm)

330330330330330330330330330

Specific Gravity Range 0.650 to 0.7000.700 to 0.7500.750 to 0.8000.800 to 0.8500.850 to 0.9000.900 to 0.9500.950 to 1.0001.000 to 1.0501.050 to 1.100

Specific Gravity, ASTM

Cat. No.

6605-1

Subdivision SG

(1.000 to 2.000) 0.01

Specific Gravity/Baume Range

0.700 to 2.000Heavy 0 to 72/Light 70 to 10

Subdivision SG/Baume

(0.700 to 1.000) 0.005Baume 1.0

Specific Gravity/Baume, Universal

60°F

60°F

60°F

Approx. Length (mm)

330330330330330330330330330330

Cat. No.67111H67112H67113H67114H67115H67116H67117H67118H67119H67120H

ASTM No. 111H112H113H114H115H116H117H118H119H120H

Subdivision 0.00050.00050.00050.00050.00050.00050.00050.00050.00050.0005

Specific Gravity Range 1.000 to 1.0501.050 to 1.1001.100 to 1.1501.150 to 1.2001.200 to 1.2501.250 to 1.3001.300 to 1.3501.350 to 1.4001.400 to 1.4501.450 to 1.500

Approx. Length (mm)

380

Liquid Petroleum Gas, Specific Gravity, w/ Thermometer (SafetyBLUE)Thermometer Scale: +30 to +90°F (Subdivision: 1°F) 60°F

Cat. No.67101HTS

Subdivision 0.001

Length (mm)380

Specific Gravity Range 0.500 to 0.650

Cat. No.6604-16604-26604-36604-46604-5

Specific Gravity Range 1.000 to 1.2501.200 to 1.4501.400 to 1.6501.600 to 1.8501.800 to 2.050

Subdivision 0.0050.0050.0050.0050.005

Approx. Length (mm)

165165165165165

Specific Gravity 60°F

Cat. No.6605-5

6605-5H6605-OSY

Specific Gravity Range 1.150 to 1.3001.150 to 1.300

N/A

Subdivision 0.0020.002

N/A

Approx. Length (mm)180 mm220 mm180 mm

77°F

Specific Gravity Battery Syphon Set & Replacement Parts

Specific Gravity, Dual ScaleCat. No.

6604DS-04Specific Gravity / Baume Range

0.70 to 1.00/70 to 10 Subdivision

0.01 Approx. Length (mm)

165

60°F

Hydrometer w Thermometer, Glass Syphon tube w/rubber bulb, nozzel and clamp. Rubber made of Buna Nitrile, which is chemically inert with long life. Thermometer Range +30 to +120°F, Comes in a Heavy Duty Storage Box.

Specific Gravity (Cont.)

6604-1

6782H

6604DS-04

6605-1

67101HTS

6605-5Battery Syphon Set w/

Storage Box

Description Hydrometer & Syphon Set

Hydrometer OnlyGlass Syphon, Rubber Parts

Cat. No.6611-1

NaCl Range 0 to 100%

Subdivision 1.0%

Approx. Length (mm)305

Sodium Chloride (NaCl), % Saturation

Cat. No.

6611-3

CaCl2 Range 1.000 to 1.280 (S.G.)

+30 to -40°F (F.P.)

Subdivision 0.002

5°

Approx. Length (mm)

305

Calcium Chloride (CaCl2), Specific Gravity, Freezing Points

Cat. No.6612-1

Proof Range 0 to 200%

Subdivision 1.0% / 2.0%

Approx. Length (mm)

305Tralle Range

0 to 100%

Alcohol, Tralle & Proof ScalesTolerance

±1.0% / ±2.0%

Alcohol, Tralle & Proof Scales, w/ Thermometer (SafetyBLUE)Thermometer Scale: -10 to +100°F (Subdivision: 1°F)

Cat. No.6613-B6613-F6613-G6613-H6613-I6613-K6613-L6613-M6613-N6613-P6613-Q6613-R

I.R. Size BFGHIKLMNPQR

Subdivision 0.5%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%

Approx. Length (mm)

230305305305305305305305305305305305

Proof Range 80 to 120%

0 to 20%20 to 40%40 to 60%60 to 80%75 to 95%

90 to 110%105 to 125%125 to 145%145 to 165%165 to 185%185 to 206%

Alcohol, Proof Scale, Internal Revenue SpecificationsTolerance

±0.5%±0.3%±0.4%±0.4%±0.3%±0.3%±0.3%±0.3%±0.3%±0.3%±0.2%±0.2%

Cat. No.6612-2TS

Proof Range 0 to 200%

Subdivision 1.0% / 2.0%

Approx. Length (mm)

355

60°F

60°F

60°F

Additional Scales

60°F

60°F

Tralle Range 0 to 100%

Tolerance ±1.0% / ±2.0%

Cat. No.6611-2

NaCl Range 0 to 26.5%

Subdivision 0.5%

Approx. Length (mm)305

Sodium Chloride (NaCl), % By Weight 60°F

Cat. No.67151H

ASTM No. 151H

Subdivision 0.001

Approx. Length (mm)280

Specific Gravity Range 0.995 to 1.038

Specific Gravity, Soil Analysis, ASTM 68°F

Cat. No.67152H

ASTM No. 152H

Subdivision 1.0

Approx. Length (mm)280

Soil Colloid Range -5 to 60g

6612-1 Alc. Tralle & Proof

6612-2TS

6613-F

6611-3

6611-2

6611-1

67152H

67151H

Cat. No.6609-16609-26609-36609-46609-56609-66609-76609-86609-9

6609-10 6609-11 6609-12 6609-13 6609-14 6609-15

Baume Range 0 to 12°9 to 21°

19 to 31°29 to 41°39 to 51°49 to 61°59 to 71°0 to 15°0 to 25°0 to 35°0 to 50°

35 to 70°0 to 50°0 to 70°0 to 90°

Subdivision 0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.1°0.2°0.5°0.5°0.5°1.0°1.0°1.0°

Approx. Length (mm)305305305305305305305305305305305305305305305

Baume (Heavy) 60°F

6609-1

Cat. No.6613-B-C6613-F-C6613-G-C6613-H-C6613-I-C6613-K-C6613-L-C6613-M-C6613-N-C6613-P-C6613-Q-C6613-R-C

I.R. Size BFGHIKLMNPQR

Subdivision 0.5%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%0.2%

Approx. Length (mm)

230305305305305305305305305305305305

Proof Range 80 to 120%

0 to 20%20 to 40%40 to 60%60 to 80%75 to 95%

90 to 110%105 to 125%125 to 145%145 to 165%165 to 185%185 to 206%

Alcohol, Proof Scale, IRS Specifications with Certification

Tolerance ±0.5%±0.3%±0.4%±0.4%±0.3%±0.3%±0.3%±0.3%±0.3%±0.3%±0.2%±0.2%

60°FComes with a Laminated Certificate (NIST, Three Point) and a Protective Case.

Printed in the USANo. VGBRC031516

Cat. No.

6600

Hydrometer Certification, NIST, 3-Point

Description

NIST Certification, 3-Point Includes Case

States Corrections To The Readings That Are Traceable to NIST

Cat. No.

66CS-866CS-8F66CS-1366CS-13J66CS-16

Hydrometer CasesVEE GEE®, w/ Cap & Internal Padding

Description

Case/PVCCase/PVC (Short)

Case/PVC Case/PVC (Wide Body)

Case/PVC

Length(mm / in)

216 / 8.5165 / 6.5

343 / 13.5343 / 13.5420 / 16.5

Case Internal Dimension66CS-8 210mm max66CS-8F 175mm (6604,672xH, 673xH & 165mm)66CS-13 340mm max66CS-13J 340mm max (67151H, 67152H, 6613-Series)66CS-16 390mm max

Jar Jar Capacity Max. Hydrometer Length21000-250 250mL 215mm max21000-500 500mL 330mm max21000-1000 1L 385mm max

Hydrometer Cases and Jars

Hydrometer Series Description Approx. Length (mm) Uses Case Uses (Jar)6601-Series Brix 330 66CS-13 500mL6601T-Series Brix w/Thermometer 370 66CS-16 1L6601TS-Series Brix w/SafetyBlue Thermometer 370 66CS-16 1L6602, 6603-Series Specific Gravity 305 66CS-13 500mL6603DS-Series Specific Gravity & Baume 305 66CS-13 500mL6604-Series Specific Gravity 165 66CS-8F 250mL6605-1 Specific Gravity & Baume: Universal 380 66CS-16 1L6608-Series API 195 66CS-8 250mL6609-Series Baume: Heavy 305 66CS-13 500mL6611-Series CaCl² or NaCl 305 66CS-13 500mL6612-1 Alcohol: Tralle & Proof 305 66CS-13 500mL6612-2TS Alcohol: Tralle & Proof w SafetyBlue Thermometer 355 66CS-16 1L6613-Series Alcohol: Proof, IRS 230-305 66CS-13J 500mL6614TS-Series Plato w SafetyBlue Thermometer 360-380 66CS-16 1L672xH, 673xH-Series API:ASTM 165 66CS-8F 250mL675xHTS-Series API:ASTM w/SafetyBlue Thermometer 380 66CS-16 1L6782H-67141H-Series Specific Gravity: ASTM 360-330 66CS-13 500mL67101HTS LPG w/SafetyBlue Thermometer 365 66CS-16 500mL6715xH Specific Gravity or Soil Colloids: ASTM 280 66CS-13J 500mL

Cat. No.

21000-25021000-50021000-1000

Hydrometer Jars

Description

250ML Hydrometer Jar500ML Hydrometer Jar

1000 ML Hydrometer Jar

Made from Borosilicate Tubing