[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: USP grade
- To: Aquatic-Plants at actwin_com
- Subject: Re: USP grade
- From: "Roger S. Miller" <rgrmill at rt66_com>
- Date: Mon, 25 Jun 2001 09:38:43 -0600 (MDT)
- Delivered-To: fixup-Aquatic-Plants at actwin_com@fixme
- In-Reply-To: <200106250748.f5P7m4c12313 at actwin_com>
On Mon, 25 Jun 2001, Cavan wrote:
> Roger Miller wrote:
> "If you are concerned about the impurities then it
> would be
> better to use a USP grade product rather than an
> agricultural product."
> Roger, what is a USP grade product.
It stands for US Pharmacopeia (actually, I would have said US
Pharmaceutical, but Jared posted first and I think he's right).
I think you can regard this as "food grade". Its the grade used in a lot
of chemicals for household use, like baking soda and epson salt. It's
probably also the lowest grade that you can get in small quantities from
many chemical suppliers.