We do not offer international shipping to countries within the European Union
We can only ship non-hazardous products to Rest of World
Compare all Pack Sizes
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
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.
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.
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 |
We can also accept a bank transfer (UK Only)