Welcome to Wikipedia. Everyone is welcome to make constructive contributions to Wikipedia, but at least one of your recent edits, such as the one you made to Parts-per notation, did not appear to be constructive and has been automatically reverted by ClueBot.

• Please use the sandbox for any test edits you would like to make, and take a look at the welcome page to learn more about contributing to this encyclopedia. Note that human editors do monitor recent changes to Wikipedia articles, and administrators have the ability to block users from editing if they repeatedly engage in vandalism.
• Cluebot produces very few false positives, but it does happen. If you believe the change you made should not have been detected as unconstructive, please report it here, remove this warning from your talk page, and then make the edit again.
• The following is the log entry regarding this warning: Parts-per notation was changed by Candymishal (u) (t) making a minor change with obscenities on 2010-04-09T23:54:47+00:00 . Thank you. ClueBot ( talk) 23:54, 9 April 2010 (UTC) reply

Please refrain from making unconstructive edits to Wikipedia, as you did with this edit to the page Parts-per notation. Such edits constitute vandalism and are reverted. Please do not continue to make unconstructive edits to pages; use the sandbox for testing. Thank you. Tide rolls 00:29, 10 April 2010 (UTC) reply

Please do not vandalize pages, as you did with this edit to Concentration. If you continue to do so, you will be blocked from editing. Tide rolls 00:42, 10 April 2010 (UTC) reply