Heathrow Scientific® IRS Alcohol Hydrometers with NIST Certificate

Certified accuracy for distilleries.

Ensure compliance and precision with Heathrow Scientific® IRS Alcohol Hydrometers, Three-Point Certified to IRS standards for proof and tolerances, and fully traceable to NIST. These certified hydrometers are essential for distilleries and laboratories that require official calibration for alcohol content verification.

Each certified hydrometer package includes:

• Alcohol Hydrometer – Calibrated for accurate proof measurement
• Certificate of Calibration – Traceable to NIST for regulatory compliance
• Protective Case – For safe storage and transport

Certification Details:

• Ordered with the hydrometer
• Requires 10–15 business days for delivery

Perfect for distilleries, quality control labs, and any application requiring certified alcohol measurement.
 

Heathrow Scientific® Universal Specific Gravity/Baume Hydrometers

Ensure accurate liquid density measurements with Heathrow Scientific® Universal Hydrometers, designed for professional laboratories and industrial applications. This dual-scale hydrometer measures Specific Gravity (0.700 to 2.000) and Baume for both heavy (0° to 72°) and light liquids (70° to 10°), making it ideal for chemical, food, and beverage industries.

Calibrated at 60°F, this precision instrument guarantees reliable results for quality control and testing. Crafted from durable glass, it offers exceptional clarity and accuracy for repeated use. Perfect for measuring liquid density, salinity, and solution concentration in a wide range of applications.

Main Attributes

• Dual scale: Specific Gravity and Baume
• Specific Gravity range: 0.700 to 2.000
• Baume range: Heavy liquids (0°–72°), Light liquids (70°–10°)
• Calibrated at 60°F for consistent accuracy
• High-quality glass construction for durability

Ideal for laboratories, distilleries, chemical plants, and educational settings where precision matters.

Specifications
 

Specific Gravity Range	0.700 to 2.000
Specific Gravity Subdivisions	(from 0.700 to 1.000): 0.005
Specific Gravity Subdivisions	(from 1.000 to 2.000): 0.01
Baume Heavy Range	0 to 72°
Baume Light Range	70 to 10°
Baume Subdivisions	1°
Length	15 In. | 380 mm

 

Heathrow Scientific® Sodium Chloride and Calcium Chloride Hydrometers

Ensure accurate measurement of salt and calcium chloride solutions with Heathrow Scientific® precision hydrometers. These high-quality instruments are designed for laboratories, industrial applications, and quality control processes, providing reliable readings at 15°C (60°F).

• Precision calibration for accurate readings
• Durable glass construction
• Ideal for chemical analysis, food processing, and industrial applications 

Sodium Chloride Hydrometers

Measure the salinity and sodium chloride concentration in solutions with exceptional accuracy.

• Model 6611-1: Indicates the saturation percentage of sodium chloride in solution.
• Model 6611-2: Displays the percentage by weight of sodium chloride in solution.
• Both models are calibrated for 15°C (60°F) to ensure consistent and precise results.

Calcium Chloride Hydrometers

Designed to measure the specific gravity and freezing point of calcium chloride (CaCl2) solutions. Calibrated at 15°C (60°F) for dependable performance in industrial and laboratory settings.
 

Heathrow Scientific® Dual Scale Gravity/Baume Hydrometers

Accurate liquid density measurement.

Heathrow Scientific® Dual Scale Baume Gravity Hydrometers are designed for precise measurement of specific gravity (relative density) and Baume scale readings in a single instrument. This dual-scale hydrometer is ideal for laboratories, industrial applications, and quality control processes.

Specific Gravity measures the ratio of the mass of a liquid to the mass of an equal volume of distilled water, providing accurate density readings.

The Baume scale includes two separate scales:

• One for liquids heavier than water
• One for liquids lighter than water 

This versatile design allows users to cover multiple applications with one hydrometer, ensuring efficiency and reliability.

Main Attributes

• Dual scale for Specific Gravity and Baume readings
• High-precision measurements for liquids heavier or lighter than water
• Durable construction for long-term use

Ideal for chemical, industrial, and laboratory applications.
 

Heathrow Scientific® Alcohol Hydrometers – Tralle and Proof Scales

Ensure accurate alcohol measurement with Heathrow Scientific® Alcohol Hydrometers, featuring both Tralle and Proof scales for precise readings. The 6612-2TS model includes an integrated thermometer, allowing you to monitor solution temperatures from -10°F to 100°F for reliable results.

Perfect for distilleries, laboratories, and quality control applications, these hydrometers deliver dependable performance and easy-to-read measurements.
 

Heathrow Scientific® Baume Hydrometers

Precision for heavy liquids.

Achieve accurate measurements for liquids heavier than water with Heathrow Scientific® Baume Hydrometers. These high-quality instruments use the Baume Scale, which calculates specific gravity using the formula:

Specific Gravity = 145 / (145 - degrees Baume)

Ideal for industrial, chemical, and laboratory applications, these hydrometers provide reliable readings for a wide range of heavy liquid solutions.

Main Attributes

• Available in a wide variety of Baume ranges for different applications
• Durable glass construction for long-lasting performance
• Approximate length: 305 mm (12 inches)
• Calibrated for precision and consistency

Perfect for professionals who require dependable measurements in chemical processing, food production, and quality control environments.

Specifications
 

Item #	Baume Range	Subdivision	Length
6609-1	0 to 12°	0.1°	12 In. | 305 mm
6609-2	9 to 21°	0.1°	12 In. | 305 mm
6609-3	19 to 31°	0.1°	12 In. | 305 mm
6609-4	29 to 41°	0.1°	12 In. | 305 mm
6609-5	39 to 51°	0.1°	12 In. | 305 mm
6609-8	0 to 15°	0.1°	12 In. | 305 mm
6609-9	0 to 25°	0.2°	12 In. | 305 mm
6609-10	0 to 35°	0.5°	12 In. | 305 mm
6609-11	0 to 50°	0.5°	12 In. | 305 mm
6609-12	35 to 70°	0.5°	12 In. | 305 mm
6609-14	0 to 70°	1.0°	12 In. | 305 mm
6609-15	0 to 90°	1.0°	12 In. | 305 mm

 

Heathrow Scientific® Plato Hydrometers

Accurate wort measurement for brewing.

Heathrow Scientific® Plato Hydrometers are designed for precise measurement of extract concentration in brewery wort using the Plato scale. Calibrated at 20°C, this hydrometer displays extract as a percentage by weight, making it an essential tool for brewers. For example, a reading of 5°P indicates 5 grams of extract per 100 grams of wort. Ideal for professional and craft brewing applications.

Main Attributes

• Measures extract concentration in wort using the Plato scale
• Calibrated for accurate readings at 20°C
• Commonly used in the brewing industry for quality control
• Durable and reliable for repeated use

Specifications
 

Item #	Plato Range	Plato Subdivision	Temp. Range	Thermometer Subdivision	Thermometer Liquid Fill
6614TS-5	0 to 8.5°	0.1°	0 to 50°C	1°C	Spirit
6614TS-6	7.5 to 16°	0.1°	0 to 50°C	1°C	Spirit
6614TS-7	15.5 to 24°	0.1°	0 to 50°C	1°C	Spirit
6614TS-8	0 to 32°	0.5°	30 to 120°F	2°F	Spirit

 

Heathrow Scientific® Liquid Petroleum Gas Hydrometers

Accurate LPG measurement.

Heathrow Scientific® LPG Hydrometers are designed for precise measurement of the specific gravity of liquid petroleum gases such as propane, butane, and other light hydrocarbons. This hydrometer includes an internal thermometer for accurate temperature readings, ensuring reliable results in laboratory and industrial applications.

Main Attributes

• Calibrated for use at 15°C (60°F) for standard measurements
• Built-in thermometer with safety blue liquid fill
• Ideal for LPG testing, including propane and butane
• Durable construction for long-term use in demanding environments 

Specifications
 

Specific gravity range	0.500 to 0.650
Specific gravity subdivisions	0.001
Temperature range	30 to 90°F
Thermometer subdivisions	1°F
Thermometer liquid fill	Safety Blue
Length	14.4 In. | 365 mm

 

Heathrow Scientific® IRS Alcohol Hydrometers

Accurate proof scale measurement.

Ensure precise alcohol content verification with Heathrow Scientific® IRS Alcohol Hydrometers, designed to meet IRS specifications and calibrated for accuracy at 60°F. These high-quality glass hydrometers use the proof scale to measure ethyl alcohol-based spirits with exceptional reliability.

Each hydrometer is individually tested and inspected for uniformity and dependable performance. With an approximate length of 12 inches, these hydrometers are ideal for distilleries, laboratories, and quality control applications.

Main Attributes

• Complies with IRS specifications
• Proof scale for accurate alcohol measurement
• Individually tested for precision and reliability
• Calibrated at 60°F for consistent results
• Durable glass construction, approx. 12 inches long

Specifications
 

Item #	Proof Range	Subdivision	Tolerenace	Internal Rev. Size	Length
6613-B	80 to 120	0.5	±0.5%	B	9.1 In. | 230 mm
6613-F	0 to 20	0.2	±0.3%	F	12 In. | 305 mm
6613-G	20 to 40	0.2	±0.4%	G	12 In. | 305 mm
6613-H	40 to 60	0.2	±0.4%	H	12 In. | 305 mm
6613-I	60 to 80	0.2	±0.3%	I	12 In. | 305 mm
6613-K	75 to 95	0.2	±0.3%	K	12 In. | 305 mm
6613-L	90 to 110	0.2	±0.3%	L	12 In. | 305 mm
6613-M	105 to 125	0.2	±0.3%	M	12 In. | 305 mm
6613-N	125 to 145	0.2	±0.3%	N	12 In. | 305 mm
6613-P	145 to 165	0.2	±0.3%	P	12 In. | 305 mm
6613-Q	165 to 185	0.2	±0.2%	Q	12 In. | 305 mm
6613-R	185 to 206	0.2	±0.2%	R	12 In. | 305 mm

 

Heathrow Scientific® Battery Acid Hydrometer and Syphon Set

The Heathrow Scientific® Battery Acid Hydrometer and Syphon Set is designed for accurate measurement of battery acid specific gravity in a variety of industrial applications, including fleet maintenance, automotive services, solar-powered systems, and general industrial use.

This set includes a specific gravity hydrometer and a glass syphon tube equipped with a nitrile rubber bulb, nozzle, and clamp for durability and chemical resistance. The reinforced storage box is compartmented to prevent breakage, ensuring long-lasting reliability.

Main Attributes

• Rubber components made of nitrile rubber for chemical inertness and durability
• Reinforced, compartmented storage box for added protection
• Calibrated for accurate readings at 77°F
• Replacement parts are available

Ideal for professionals who need precise and dependable battery acid measurements in demanding environments.
 

Heathrow Scientific® Hydrometer Cases

Durable PVC protection for your hydrometers.

Keep your hydrometer safe and secure with Heathrow Scientific® Hydrometer Cases. Crafted from high-quality polyvinyl chloride (PVC), these protective cases are designed to prevent damage during storage or transport. Each case features a foam or felt padded insert, plus a padded bottom and cap for extra cushioning. Ideal for laboratories, breweries, and any environment where hydrometers are used, these cases ensure long-lasting protection and convenience when your hydrometer is not in use.

Specifications
 

Item #	Material	Style	Length
66CS-8	PVC	Standard	8.5 In. | 216 mm
66CS-8F	PVC	Short	8.5 In. | 216 mm
66CS-13	PVC	Standard	13.5 In. | 343 mm
66CS-13J	PVC	Wide Body	13.5 In. | 343 mm
66CS-16	PVC	Standard	16.5 In. | 420 mm