BS 7720:1995

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 of determining strength after
    steam sterilization
B (normative) Method of estimating 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 of compariang the sensitivity of
    the alternative pack system to the standard test
    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 of determining the sensitivity of
    the indicator system under exposure to dry heat
G (normative) Method of 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