Thanks for your replies,but it seems that you miss my point.
I am familiar with the approval standards(NSF61/WRAS/DVGW etc.)that are related with potable water.
I am not looking for a special silicone grease with an approval standard,
as i have already have one,it is made to use in potable water's faucet and it is rated with NSF61 approval standard,but it is very small.
As i have also some other silicone greases(larger size)that are not rated for potable systems,my question was refer to them.
The MSDS that i attached before was one of them,it doesn't have an approved standard for potable system,but according to the MSDS,
it looks like it safe to use it for that application and you all agree with that.
So my question was,according to the specific silicone grease and its MSDS:
If the item doesn't have approval standard for potable water systems,Can i conclude that it doesn't necessary mean,that the grease is not safe to use with potable water system and the MSDS information is what matters?
Or if it doesn't have an approval standard for potable water systems,it
absolutely not safe to use it in those application(potable water faucet's o-ring,for example)?