BS 7720:1994

Committees responsible
Foreword
Specification
1 Scope
2 References
3 Definitions
4 General system requirements
5 Indicator system format
6 Performance
7 Packaging, labelling and instructions for use
Annexes
A (normative) Method for determining strength after
     steam sterilization
B (normative) Method for the estimation of the visual
     difference between the colour of the substrate and
     the changed (or unchanged) indicator reagent on the
     substrate
C (normative) Method of demonstrating uniform colour
     change on exposure to dry saturated steam
D (normative) Method for comparing the sensitivity of
     the alternative pack system to the standard test
     pack when air is injected into the steam exposure
     apparatus
E (normative) Method of comparing the sensitivity of
     the alternative pack system to the standard test
     pack when residual air is allowed to remain within
     the steam exposure apparatus
F (normative) Method for determining the sensitivity
     of the indicator system under exposure to dry heat
G (normative) Method for demonstrating the shelf life
     of the product
H (normative) Steam exposure apparatus
J (normative) Standard test pack
K (informative) Air injection system
L (normative) Standard test cycles
Table
B.1 Values of spectral product required of the
     reflectance photometer at the given values of
     wavelength and illuminance
Figures
1 Example of a suitable format for additional marking
K.1 Air injection apparatus
L.1 Example of sub-atmospheric pulsing cycle
L.2 Example of sub- and super-atmospheric pulsing cycle
List of references

Specifies requirements for systems for use in combination with specified test loads in steam sterilizers for wrapped goods.