PPS 3899

Project Plan 2026

Hydrometers — Principles of construction and adjustment

Sector: Health and Personal Care
Project Method: Adoption without modification
Project Type: Update
International Classification for Standards (ICS)
Code Classification
17.060 Measurement of volume, mass, density, viscosity
Adopted Standard
Standards / Amendment / Corrigendum
1 ISO 387:1977
Replaces
Will Replace
PS 3899-2021
Scope
This International Standard sets out principles for the construction and adjustment of glass hydrometers of constant mass which do not incorporate a thermometer.
The corresponding International Standard for glass hydro-meters with an incorporated thermometer is ISO .. .1)
1) In preparation.