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API Hydrometer: API ASTM Combined Form, 59/71, 0.1 - API Hydrometers
APIAPI Hydrometers

API Hydrometer: API ASTM Combined Form, 59/71, 0.1

The API Hydrometer (MPN GW057HL) is an API ASTM Combined Form hydrometer with a range of 59/71 and scale divisions of 0.1. It features a 0 / 150ºF Mercury Thermometer and has an overall height of 15 inches.

SKU 3G-OTH-368899

Brand
API
Item
Hydrometer: API ASTM Combined Form, 59/71, 0.1
Category
API Hydrometers
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

API
Manufacturer Part Number
GW057HL
Range
59/71
Features
0 / 150ºF Mercury Thermometer
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 (MPN GW057HL) is an API ASTM Combined Form hydrometer with a range of 59/71 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 GW057HL used for?

The API Hydrometer GW057HL is used to measure the specific gravity of petroleum products and crude oils per ASTM standards. Its combined form scale and 0/150°F mercury thermometer make it suitable for field and lab testing in refineries, pipelines, and quality control labs.

What are the specifications of the API Hydrometer GW057HL?

The API Hydrometer GW057HL has a range of 59/71, scale divisions of 0.1, and an API ASTM Combined Form scale type. It includes a 0/150°F mercury thermometer and has an overall height of 15 inches. The manufacturer part number is GW057HL.

Where to buy the API Hydrometer GW057HL worldwide?

You can source the API Hydrometer GW057HL 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.

How to select the correct API hydrometer for ASTM testing?

Select an API hydrometer by matching its range and scale divisions to your test method. For ASTM D287, the combined form scale (like the GW057HL with 59/71 range and 0.1 divisions) is standard. Ensure the thermometer range covers your expected sample temperature, such as the 0/150°F mercury thermometer included.

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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