cgytm
08-14-2003, 09:18 AM
First excuse my english, I am french speaking.
I think I made quite a compleate survey on the mineral oil subject as I noticed that there are many unvoluntary errors made by many people and all this is misleading a lot. Hope this will help and not make it worst!
First let's say that we should stop talking about FGMO (Food grade Mineral Oil) when we are speaking about oil to be fogged. This FGMO is NO LONGER a standard and the acronym has been replaced with WMO (White Mineral Oil).
FGMO standard has been replaced by one of the CAS standards (Chemical Abstract Service number).
CAS standards covers many type of oils. In our case we are concerned with only one of them, the one who deal with oils that can be mixed with food (former Food Grade) and eaten. There is another quality of oil that can have "contacts" with food. This is a "near" food grade. But let's disclose that group as far as beekeeping is concerned, we are not interested in oils that are not recommanded as far as their edibility is concerned.
Among the acceptable group (former Food grade) there are two types : light and heavy oil.
Light oil (CAS 8042-47-5) meets a desity range from .81 to .88 with an average of .85 and with a viscosity around 70 at 38 C.
The heavy oil (CAS 8012-95-1) has a density of .90+ and a viscosity aroud 70 at 38 C.
Let us remind at this point that Dr Rodriguez recommandations are : density .86 and viscosity 70.
Only light oil meeting CAS 8042-47-5 standard meet Dr Rodriguez recommandations. Period!
Now what about USP (USA) and BP (British) standards? Those standards are pharmaceutical standards that relates to the way the oil is produced and specifically are related to the edibility of the product. They are closely related to the "food grade" concept. BUT there is no relation between USP/BP standards and density or viscosity of the oil. Both light and heavy oils can be USP/BP! Let's make it clear. Contrary to most opinions, oil comming out of pharmacy (laxative oil) are NOT light oils. Most of them are heavy oils and DO NOT MEET DR. Rodriguez recommandations. Those pharmacy oils that can be identified as "light oil" are normally associated with cosmetic products and have other ingredients included like perfumes. So an USP oil does not mean automatically that it is an acceptable oil... and by far. As a general rule oils comming from pharmacy should be avoided if they can not be clearly identified as meeting CAS 8042-47-5 and nothing eles eis added.
Veterinary oils now. Veterinary usage oils should be considered individually. Some do meet the CAS 8042-47-5 standard other not. I would say, contary to the common opinion, that most of them meet now that standard. So they should not be discarded automatically.
Frequently mentionned oils like the Drakeol 35 (used by Dr Rodriguez) or the Crystal Plus 70FG do meet in every aspects the CAS 8042-47-5 standard. They are light oils.
As a conclusion and in order to be sure that someone buys the right oil, everyone should look on the can that the oil meets specifically the CAS 8042-47-5 standard. If not on the can, check on Internet. Most of them have their specs published. If you can't find it don't buy it. DO NOT rely on words like USP/BP, food grade, light oil etc... This is not enough.
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Normand Choiniere
Mont-Tremblant region, Quebec, Canada.
http://consultus.qc.ca/valmiel
I think I made quite a compleate survey on the mineral oil subject as I noticed that there are many unvoluntary errors made by many people and all this is misleading a lot. Hope this will help and not make it worst!
First let's say that we should stop talking about FGMO (Food grade Mineral Oil) when we are speaking about oil to be fogged. This FGMO is NO LONGER a standard and the acronym has been replaced with WMO (White Mineral Oil).
FGMO standard has been replaced by one of the CAS standards (Chemical Abstract Service number).
CAS standards covers many type of oils. In our case we are concerned with only one of them, the one who deal with oils that can be mixed with food (former Food Grade) and eaten. There is another quality of oil that can have "contacts" with food. This is a "near" food grade. But let's disclose that group as far as beekeeping is concerned, we are not interested in oils that are not recommanded as far as their edibility is concerned.
Among the acceptable group (former Food grade) there are two types : light and heavy oil.
Light oil (CAS 8042-47-5) meets a desity range from .81 to .88 with an average of .85 and with a viscosity around 70 at 38 C.
The heavy oil (CAS 8012-95-1) has a density of .90+ and a viscosity aroud 70 at 38 C.
Let us remind at this point that Dr Rodriguez recommandations are : density .86 and viscosity 70.
Only light oil meeting CAS 8042-47-5 standard meet Dr Rodriguez recommandations. Period!
Now what about USP (USA) and BP (British) standards? Those standards are pharmaceutical standards that relates to the way the oil is produced and specifically are related to the edibility of the product. They are closely related to the "food grade" concept. BUT there is no relation between USP/BP standards and density or viscosity of the oil. Both light and heavy oils can be USP/BP! Let's make it clear. Contrary to most opinions, oil comming out of pharmacy (laxative oil) are NOT light oils. Most of them are heavy oils and DO NOT MEET DR. Rodriguez recommandations. Those pharmacy oils that can be identified as "light oil" are normally associated with cosmetic products and have other ingredients included like perfumes. So an USP oil does not mean automatically that it is an acceptable oil... and by far. As a general rule oils comming from pharmacy should be avoided if they can not be clearly identified as meeting CAS 8042-47-5 and nothing eles eis added.
Veterinary oils now. Veterinary usage oils should be considered individually. Some do meet the CAS 8042-47-5 standard other not. I would say, contary to the common opinion, that most of them meet now that standard. So they should not be discarded automatically.
Frequently mentionned oils like the Drakeol 35 (used by Dr Rodriguez) or the Crystal Plus 70FG do meet in every aspects the CAS 8042-47-5 standard. They are light oils.
As a conclusion and in order to be sure that someone buys the right oil, everyone should look on the can that the oil meets specifically the CAS 8042-47-5 standard. If not on the can, check on Internet. Most of them have their specs published. If you can't find it don't buy it. DO NOT rely on words like USP/BP, food grade, light oil etc... This is not enough.
------------------
Normand Choiniere
Mont-Tremblant region, Quebec, Canada.
http://consultus.qc.ca/valmiel