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Fw: Regarding fluorides

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----- Forwarded Message ----- From: Sajithakumari Sivaprem <ssajithakumari@...> "dr_ashish_pandit@..." <dr_ashish_pandit@...> Sent: Monday, 6 February 2012 9:59 AM Subject: Re: Regarding fluorides Dear Ashish, 1000ppm=1mg/ml given in pink book. now,that is0.1g/100ml=0.1% so when we need to convert% into pppm multiply by 10,000 then,0.023% becomes 230ppm. hope it is clear ashish.. again about the percentage of flourine that is again in pink book 0.05% NaF contains.0.023% F. regards

sajitha. Regarding fluorides Dear sajitha,Thank u very much. But I hv a doubt.Firstly how did u get 0.05%NaF=0.023%F Secondly, how do u convert percent of F into ppm of F ???This has always been confusing, can u pls pls help me with this ??Also,if there's any book which I can read that ll be gr8Ashish.Sent on my BlackBerry® from Vodafone

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----- Forwarded Message ----- From: Sajithakumari Sivaprem <ssajithakumari@...> "dr_ashish_pandit@..." <dr_ashish_pandit@...> Sent: Monday, 6 February 2012 9:59 AM Subject: Re: Regarding fluorides Dear Ashish, 1000ppm=1mg/ml given in pink book. now,that is0.1g/100ml=0.1% so when we need to convert% into pppm multiply by 10,000 then,0.023% becomes 230ppm. hope it is clear ashish.. again about the percentage of flourine that is again in pink book 0.05% NaF contains.0.023% F. regards

sajitha. Regarding fluorides Dear sajitha,Thank u very much. But I hv a doubt.Firstly how did u get 0.05%NaF=0.023%F Secondly, how do u convert percent of F into ppm of F ???This has always been confusing, can u pls pls help me with this ??Also,if there's any book which I can read that ll be gr8Ashish.Sent on my BlackBerry® from Vodafone

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And this also explains the same.hope u get it now areej. From: Sajithakumari Sivaprem <ssajithakumari@...> " " < > Sent: Monday, 6 February 2012 10:38 PM Subject: Fw: Regarding fluorides

----- Forwarded Message ----- From: Sajithakumari Sivaprem <ssajithakumari@...> "dr_ashish_pandit@..." <dr_ashish_pandit@...> Sent: Monday, 6 February 2012 9:59 AM Subject: Re: Regarding fluorides Dear

Ashish, 1000ppm=1mg/ml given in pink book. now,that is0.1g/100ml=0.1% so when we need to convert% into pppm multiply by 10,000 then,0.023% becomes 230ppm. hope it is clear ashish.. again about the percentage of flourine that is again in pink book 0.05% NaF contains.0.023% F. regards

sajitha. Regarding fluorides Dear sajitha,Thank u very much. But I hv a doubt.Firstly how did u get 0.05%NaF=0.023%F Secondly, how do u convert percent of F into ppm of F ???This has always been confusing, can u pls pls help me with this ??Also,if there's any book which I can read that ll be gr8Ashish.Sent on my BlackBerry® from Vodafone

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