Hydrometer,Specific Gravity, Industry

Quick Answer: The Industrial Specific Gravity Hydrometer is a glass hydrometer scaled directly in specific gravity units, built for on-site density checks of process liquids in chemical, petroleum, and manufacturing settings where consistent batch-to-batch quality matters.

Product Description

This hydrometer reads directly in specific gravity (the ratio of a liquid’s density to that of water) rather than an industry-specific scale such as Baumé or Brix. Because specific gravity is a universal reference point, it is widely used across chemical processing, petroleum handling, and general manufacturing to confirm that an incoming or outgoing liquid batch matches its expected density before it moves on to the next stage of a process.

What Makes This Instrument Distinct

Unlike our brass industrial hydrometer, this is a glass instrument, and unlike scale-specific hydrometers such as the Baumé, Brix, or Twaddle variants elsewhere in our range, its scale reads specific gravity directly — a general-purpose reference that does not require converting to another industry convention. This makes it a versatile choice for a manufacturing floor that works with a variety of liquids rather than one specific product category.

Care & Maintenance

• Rinse thoroughly after each test liquid to avoid cross-contamination and residue buildup on the stem.
• Handle carefully — as a glass instrument, it can chip or crack from impact against hard surfaces.
• Store upright in a padded holder or case when not in use.
• Avoid rapid temperature changes between the storage environment and the test liquid, which can stress the glass.
• Periodically verify accuracy against a known reference standard as part of routine quality checks.

Why Choose LabEquip

LabEquip supplies a full range of hydrometers, from general-purpose specific-gravity instruments to scale-specific and industrial-duty designs. Browse our Measuring Instruments category, see our heavy-duty Brass Baumé Hydrometer, or visit our homepage for our full catalogue.

Frequently Asked Questions

What does this hydrometer measure?
It measures specific gravity — the ratio of a liquid’s density to the density of water — a general reference used across many industrial sectors.

How does it work?
Like other hydrometers, it works on the buoyancy principle: it floats at a depth that corresponds to the liquid’s density, and the scale is read at the liquid surface.

How is this different from the Brass Baumé Hydrometer?
This is a glass instrument reading specific gravity directly, while the brass version is built for extra durability and reads on the Baumé scale, a different industrial convention.

What industries use this type of hydrometer?
It is commonly used across chemical processing, petroleum handling, and general manufacturing for batch-to-batch density verification.

Is this suitable for laboratory-grade analytical work?
It is designed for practical industrial process checks; for the highest analytical precision, our dedicated analytical-grade hydrometer may be a better fit.

How should I care for this hydrometer?
Rinse it after each use, handle it carefully to avoid chips or cracks, and store it upright in a padded holder.

Last Updated: September 2026