BS 7720:1994
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Hardcopy , PDF
12-15-1995
English
09-15-1994
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
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