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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 is an API ASTM Combined Form instrument with a range of 39/51 and scale divisions of 0.1. It features spirit filled mercury thermometers and has an overall height of 15 inches. This hydrometer is…

SKU 3G-OTH-368870

Brand
API
Item
Hydrometer: API ASTM Combined Form, 39/51, 0.1
Category
API Hydrometers
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

API
Manufacturer Part Number
GW055HLS
Range
39/51
Features
Spirit Filled Mercury Thermometers
Scale Type
API ASTM Combined Form
Scale Divisions
0.1

Technical Documents

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

Product Description

The API Hydrometer is an API ASTM Combined Form instrument with a range of 39/51 and scale divisions of 0.1. It features spirit filled mercury thermometers and has an overall height of 15 inches. This hydrometer is identified by manufacturer part number GW055HLS.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is an API hydrometer used for?

An API hydrometer measures the specific gravity of petroleum liquids, such as crude oil and refined products, according to the American Petroleum Institute (API) scale. This API ASTM Combined Form instrument with a 39/51 range is used in refineries, labs, and quality control to determine API gravity for classification and pricing.

What are the specifications of the API Hydrometer GW055HLS?

The API Hydrometer GW055HLS has a range of 39/51 API, scale divisions of 0.1, and an overall height of 15 inches. It features spirit filled mercury thermometers and is an API ASTM Combined Form scale type. This instrument is manufactured by API under part number GW055HLS.

Where to buy API hydrometers worldwide?

3G Electric supplies API hydrometers like the GW055HLS to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. As a global industrial solutions provider, we source genuine instruments and support procurement across 14 departments, including instrumentation and test & measurement.

How to select the right API hydrometer for petroleum testing?

Select an API hydrometer based on the expected API gravity range of your petroleum sample. The API ASTM Combined Form with a 39/51 range and 0.1 scale divisions suits medium to heavy crude oils. Ensure the hydrometer includes a spirit filled mercury thermometer for accurate temperature compensation during measurement.

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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