CLEANING OF EQUIPMENT FOR OXYGEN SERVICE - AIGA

6.4.1 Odour Test
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AIGA 012/04
If requested (e.g. for medical gases)- an odour test shall be performed. The odour can be determined
by one of the following procedures:
- During purging operations by sniffing a moderate flow of purge gas from the equipment being
tested.
- From equipment in service containing gaseous oxygen by sniffing a moderate flow of oxygen from
the equipment being tested.
- From equipment in service containing liquid oxygen by taking out a liquid sample for testing.
Odour in the liquid oxygen sample is checked by evaporating to dryness a quantity of liquid in a
loosely covered beaker with a fresh filter paper in the bottom. The cover is removed at the point of
complete evaporation and the beaker is odour tested several times until, is has warmed to above
the freezing point of condensed water on the outside.
The result of the inspection shall confirm the absence of odour. In either of the above procedures do
not place face directly in front of valve or beaker. Instead cup the band and bring some of the gas
being vented towards the nose.
6.5 Inspection records
Records are made of inspections and acceptances for the cleaned equipment or assembly. The
record will include:
a) Identification of the item covered
b) Cleanliness specifications
c) Cleaning method employed
d) Method of inspection
e) Results of inspection
f) Inspector's signature and date
7 Labelling for oxygen service
All equipment components and spare parts delivered single or bulk packed in accordance with this
specification shall bear a label stating that the items have been
- CLEANED FOR OXYGEN SERVICE
Additional information may be included as follows:
- To be kept free from oil and grease particles and water.
- Showing date of inspection and stamps of supplier or workshop.
- Stating the designation of the equipment and its serial number (if applicable).
- Warning of asphyxiation hazard if applicable indicating medium and pressure.
The label must be visible and securely attached to -h item by an appropriate means and not invalidate
oxygen clean condition. Avoid the use of adhesive labels directly on metals as the adhesive may
cause corrosion and/or contamination.
Any other information or notices required relative to shipping storage and cleanliness conservation to
be included on labels is given in Section 6.
8 Conservation of cleanliness
The purpose of this section is to provide protection to conserve the cleanliness of equipment for
oxygen vice during shipping and storage until installation prior to commissioning.