We recently bought a set of pH paper of 2 types. One is made in China (which we actually want to return kasi hindi Makita talaga yung change in color to indicate the exact pH) and one is made in Germany, I think, which performs better kasi sakto yung reading. China-made is 200 and German-made is 950. Sorry I don't have the number with me right now, but I'll email again tomorrow. As for the pH pen, I'll ask my boss. =)
From: [email protected] [mailto:[email protected]] On Behalf Of Dianne dela Cruz Sent: Monday, February 09, 2009 3:25 PM To: [email protected] Subject: [FilipinoLibrarians] pH pen / litmus paper supplier Hi! Would anyone know any supplier of pH pen and litmus paper? Thank you! Dianne --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Filipino Librarians" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/FilipinoLibrarians?hl=en -~----------~----~----~----~------~----~------~--~---
