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
Unfortunately, we are not currently accepting orders for Northern Ireland, Jersey and Guernsey.
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
BS 718 : 1991 is generally aligned with ISO 387 and ISO 649. The specification includes five series and three sub-series of hydrometers. They are calibrated using the accepted units of grams per millilitre (g/ml) and are adjusted at 20°C.
High-Quality Materials
Made from durable soda glass with steel shot ballast and synthetic wax resin for stability.
Wide Measurement Range
Covers petroleum density measurements from 1.00 to 2.00 g/ml (see table for details).
Precision Accuracy
Calibrated to ±0.002 g/ml with 0.002 g/ml divisions for reliable results.
Optimised for Laboratory Use
Designed for use at 20°C to ensure consistent performance.
Compact and Sturdy Design
Maximum length of 250mm with a 18-20mm bulb diameter for easy handling.
Protective Storage
Supplied in a resealable plastic tube, weighing approximately 42g (including 14g 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
Max Length: 250mm
Bulb Diameter: 18-20mm
Accuracy: +/- 0.002 g/ml
Divisions: 0.002 g/ml
Approx Weight: 42g (including 14g protective plastic tube)
| Range (g/ml) | Product number |
| 1.00-1.10 | 10-404-0 |
| 1.10-1.20 | 10-405-0 |
| 1.20-1.30 | 10-406-0 |
| 1.30-1.40 | 10-407-0 |
| 1.40-1.50 | 10-408-0 |
| 1.50-1.60 | 10-409-0 |
| 1.60-1.70 | 10-410-0 |
| 1.70-1.80 | 10-411-0 |
| 1.80-1.90 | 10-412-0 |
| 1.90-2.00 | 10-413-0 |


We can also accept a bank transfer (UK Only)