Both NAUI & PADI require quarterly air testing as per their respective agency standards or ethics. Quarterly would be ever three months.....how many shops do you know that follow that standard in Ontario?
The CSA standard refers to air tests every six months or after maintenance on a compressor. Some of the busy shops pump more air in three weekends than others do all year. Should the standard be changed to be in relation to the number of hours the compressor operates?
Depending on the version of Z-180 used the air is tested for Carbon Dioxide, Oxygen, Nitrogen, Methane, Carbon Monoxide, Nitrous Oxide, Non-methane hydrocarbons, Halogenated Hydrocarbons, dewpoint, Nitrogen Dioxide, Water Vapour, and Odour.
Well I have seen samples that contained Dichlorofluoromethane, Isobutane, Butane, 2-Methylbutane, Acetone, Pentane, 2-Methylpentane, 3-Methypentane, Hexane, Methylcyclopentane, Tolune, Ethylbenzene, Limonene etc...but they are not normally tested for. What are the exposure effects of these? What is the effect of breathing these at depth?
With regards to dew point and freeze faillure....will mold grow in a tank????????
Well thats enough ranting for me for now.....