BS 3970-2:1991

Committees responsible
Foreword
Specification
1. Scope
2. Definitions
3. General requirements
4. Design pressure
5. Design of spray-jets
6. Operating cycle
7. Instrumentation and controls
8. Performance requirements
9. Load-handling equipment
10. Information to be supplied by the manufacturer
Appendices
A. Recommendations for information to be supplied by
    the purchaser
B. Test for sterilizer function without a load
C. Test for sterilizer function with a small load of
    low thermal capacity
D. Test for sterilizer function with a full load
E. Test for coolant water quality
F. Test for F subzero (Fo) control compliance
G. Test for performance of reference instrument
H. Potential hazards associated with the sterilization
Tables
1. Operating cycle conditions for acceptable
    temperature band
2. Permitted ranges for Fo values
Figure
1. Pressure generated in a nominal 1 L bottle,
    containing different volumes of water, when heated
    to 121 deg C

Requirements, additional to those in Part 1, for sterilizers in which heat transfer is effected by saturated steam under phase-boundary conditions.

This Part of BS3970 specifies particular requirements for sterilizers intended to be used for the sterilization of aqueous fluids in sealed rigid containers in which the heat transfer is effected by saturated steam under phase-boundary conditions, having a steady-state equilibrium during the holding phase. These requirements apply in addition to the general requirements specified in BS3970-1.

NOTE1 Recommendations for the information to be supplied by the purchaser to the manufacturer are given in Appendix A.

NOTE2 The attention of both the sterilizer manufacturer and the user is drawn to the hazards associated with processing fluids in sealed rigid containers described in Appendix H.

NOTE3 The titles of the publications referred to in this standard are listed on the inside back cover.