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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, model GW055HL, is an API ASTM Combined Form hydrometer with a range of 39/51 and scale divisions of 0.1. It features a 0 / 150ºF Mercury Thermometer and has an overall height of 15 inches.

SKU 3G-OTH-368871

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
GW055HL
Range
39/51
Features
0 / 150ºF Mercury Thermometer
Scale Type
API ASTM Combined Form
Scale Divisions
0.1
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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The API Hydrometer, model GW055HL, is an API ASTM Combined Form hydrometer with a range of 39/51 and scale divisions of 0.1. It features a 0 / 150ºF Mercury Thermometer and has an overall height of 15 inches.

Frequently Asked Questions

What is the API Hydrometer GW055HL used for?

The API Hydrometer GW055HL measures the specific gravity of petroleum products per ASTM standards. Its 39/51 range and 0.1 divisions suit light crude and refined fuels. The built-in 0/150ºF mercury thermometer enables simultaneous temperature correction, essential for accurate density readings in labs and refineries.

What are the specifications of the API Hydrometer GW055HL?

The API Hydrometer GW055HL has a range of 39/51 API, scale divisions of 0.1, and an overall height of 15 inches. It features a 0/150ºF mercury thermometer and uses an API ASTM Combined Form scale. The manufacturer part number is GW055HL.

Where to buy the API Hydrometer GW055HL worldwide?

3G Electric supplies the API Hydrometer GW055HL to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine API instruments and support procurement teams with accurate quoting and shipping coordination.

How to select the correct API hydrometer for petroleum testing?

Select an API hydrometer by matching its range to the expected specific gravity of your petroleum sample. The GW055HL covers 39/51 API, suitable for light products. Ensure the scale type (ASTM Combined Form) and thermometer range (0/150ºF) align with your test method. Consult ASTM D1298 for full guidance.

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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