BS 976:1987

Foreword
Committees responsible
Schedule
1 Scope
2 Basis of table 1
3 Application of table 1
Appendices
A Correction of readings taken on BS hydrometers
B BS hydrometers available for use in conjunction with
   the tables
C Examples of the use of table 1 in conjunction with
   BS hydrometers
Tables
1 Density-composition table for aqueous solutions of
   hydrochloric acid
2 Corrections to be applied to obtain density at t
3 Temperature corrections for BS hydrometers
4 Surface tensions of aqueous solutions of hydrochloric
   acid at 20 deg C
5 Maximum errors introduced by ignoring surface tension
   when reading BS hydrometers, adjusted for 55 mN/m,
   in aqueous solutions of hydrochloric acid in an
   ordinary hydrometer jar
6 Maximum errors due to omission of all corrections to
   BS hydrometers adjusted for 55 mN/m
7 BS hydrometers available for use in aqueous solutions
   of hydrochloric acid

Based on International Critical Tables. Density in kg/m³ of aqueous solution, mass in g of HCl in 100 g of aqueous solution, mass in g of HCl in 1 litre aqueous solution. Notes on standard hydrometers, including corrections to be applied and worked examples.

This British Standard gives tables that enable the composition of an aqueous solution of hydrochloric acid to be determined from its density at temperatures between 0 °C and 40 °C.

Appendix A gives information on the corrections that are necessary when density is determined by a hydrometer complying with BS 718¹).

Appendix B gives information on the choice of BS hydrometers that are suitable for the determination of the density of hydrochloric acid solutions.

Appendix C gives examples of the use of a BS hydrometer in conjunction with Table 1.

NOTE The titles of the publications referred to in this standard are listed on inside back cover.