Density Hydrometers

The standard BS 718 : 1991 is generally aligned with ISO 387 and ISO 649. The specification includes five series and three sub-series of Hydrometers, of which the most widely used are listed. They are calibrated using the accepted units of density: grams per milliliter (g/ml).

BS718:1991 Density Hydrometers Series S50

Density HydrometersRange Span 0.050g/ml
Length = 190mm
Divisioned in 0.002 g/ml
adjusted at 20°

Sizes & Specifications

BS718:1991 Density Hydrometers Series M50

Density HydrometersRange Span 0.050g/ml
Length = 270mm
Divisioned in 0.001 g/ml
adjusted at 20°C°

Sizes & Specifications

BS718:1991 Density Hydrometers Series L50

Density HydrometersRange Span 0.050g/ml
Length = 330mm
Divisioned in 0.0005 g/ml
adjusted at 20°C

Sizes & Specifications

BS718:1991 Density Hydrometers Series M100

Density HydrometersRange Span 0.100g/ml
Length = 250mm
Divisioned in 0.002 g/ml
adjusted at 20°C

Sizes & Specifications

BS718:1991 Density Hydrometers Sub-series M50 SP

Density HydrometersThis sub-series has a greater accuracy than the standard M50 Series and is only available over a limited range of density. This sub-series is commonly used in the Petroleum industry and corresponds to IP 160
Range Span 0.050g/ml
Length = 270mm
Divisioned in 0.001 g/ml
adjusted at 15°C

Sizes & Specifications

 

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