ASTM 100 Hydrometer - Low Surface Tension, -1 - 101 API

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Price: £63.97

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Stock Availability

On Shelf - Approx. UK delivery date: Tuesday the 05th August 2025*

In bulk stock - ships within 10 - 15 Working Days (Excluding weekends and public holidays)

4 to 6 weeks approx. (Not guaranteed)

UK Shipping

We can only ship to Northern Ireland where a Royal Mail postal option has been chosen at checkout.

We can only ship to the following postcodes where a Royal Mail postal option has been chosen at checkout.

AB, DD, DG3, DG4, DG6 - DG9, EH, FK, G, HS, IM, IV, KA, KW, KY, ML, PA, PH, PO30 - PO41, TD, TR21 - TR25, ZE

* We will always try to ship as early as possible. Delivery could be much quicker than stated but is not guaranteed

General

Please note:

- These hydrometers are made to order and have a lead time of approximately 5 weeks

- If you require a calibration certificate, these can be provided at an additional cost and will need to be ordered alongside the hydrometer

The American Society for Testing and Materials (ASTM) Specification E 100 describes hydrometers using the API (American Petroleum Institute) scale and others in degrees Specific Gravity. These 330mm long plain hydrometers are adjusted at 60°F for petroleum products and other liquids of low surface tension. All hydrometers can be supplied with UKAS certification, certificate traceable to Recognised National Standard or Statement of Conformity, if required.

Key Features

High-Quality Materials

Made from durable soda glass with steel shot ballast and synthetic wax resin for stability.

Wide Measurement Range

Covers measurements from -1 to 101 API units (see table for details).

Precision Accuracy

0.1 API divisions for reliable results.

Optimised for Laboratory Use

Designed for use at 15.6°C (60°F) to ensure consistent performance.

Compact and Sturdy Design

Maximum length of 330mm with a 26mm bulb diameter for easy handling.

Protective Storage

Supplied in a resealable plastic tube, weighing approximately 100g (including 45g for the tube).

Manufactured in the UK

Produced to high-quality standards for professional and industrial applications.

Specification

Material: Soda glass, steel shot ballast, synthetic wax resin
Ranges: See table
Overall length: 330mm
Bulb diameter: 26mm
Approx weight: 100g (incl. 45g protective plastic tube)

Range (API)	Product number
-1-11	09-001-0
9-21	09-002-0
19-31	09-003-0
29-41	09-004-0
39-51	09-005-0
49-61	09-006-0
59-71	09-007-0
69-81	09-008-0
79-91	09-009-0
89-101	09-010-0

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