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API Hydrometer: API ASTM Combined Form, 39/51, 0.1 - API Hydrometers
APIAPI Hydrometers

API Hydrometer: API ASTM Combined Form, 39/51, 0.1

The API Hydrometer (MPN GW055HM) is an API ASTM Combined Form hydrometer with a range of 39/51 and scale divisions of 0.1. It features a +30 / 180ºF Mercury Thermometer and has an overall height of 15 inches.

SKU 3G-OTH-368857

Brand
API
Item
Hydrometer: API ASTM Combined Form, 39/51, 0.1
Category
API Hydrometers
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Technical Specifications

API
Manufacturer Part Number
GW055HM
Range
39/51
Features
+30 / 180ºF Mercury Thermometer
Scale Type
API ASTM Combined Form
Scale Divisions
0.1

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API Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The API Hydrometer (MPN GW055HM) is an API ASTM Combined Form hydrometer with a range of 39/51 and scale divisions of 0.1. It features a +30 / 180ºF Mercury Thermometer and has an overall height of 15 inches.

Frequently Asked Questions

What is the API Hydrometer GW055HM used for?

The API Hydrometer GW055HM is used to measure the specific gravity of petroleum products and liquids in accordance with ASTM standards. It is commonly employed in refineries, laboratories, and quality control settings to determine API gravity, which indicates fuel density and quality.

What are the specifications of the API Hydrometer GW055HM?

The API Hydrometer GW055HM has a range of 39/51 with scale divisions of 0.1. It features a +30 / 180ºF Mercury Thermometer and an overall height of 15 inches. The scale type is API ASTM Combined Form, and the manufacturer part number is GW055HM.

Where to buy the API Hydrometer GW055HM worldwide?

You can source the API Hydrometer GW055HM through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply this hydrometer to procurement teams internationally.

How to select the correct API hydrometer for petroleum testing?

Select an API hydrometer based on the expected API gravity range of your petroleum sample. The GW055HM covers 39/51 with 0.1 divisions, suitable for medium to heavy crude. Ensure the hydrometer includes a thermometer for temperature correction, as API gravity is temperature-dependent. Always verify ASTM compliance for your test method.

Used in

Common applications for API
Petroleum refining — API ASTM Plain Form hydrometers (e.g., range 19/31) for measuring crude oil gravity during distillation
Fuel blending — API Combined Form hydrometers (e.g., range 39/51) with thermometer for real-time density checks in gasoline blending
Marine fuel handling — API hydrometers (e.g., range 40/80) for verifying bunker fuel API gravity at storage terminals
Quality control labs — API ASTM Plain Form hydrometers (e.g., range 49/61) for routine testing of light distillates
Field testing — API Combined Form hydrometers (e.g., range 29/41) for portable density measurement in pipeline sampling
Petrochemical production — API hydrometers (e.g., range 15/21) for monitoring solvent density in chemical processing

API Products

3G Electric supplies API api hydrometers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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