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The pH range is commonly given as zero to 14, but a pH value can be less than 0 for very concentrated strong acids or greater than 14 for very concentrated strong bases. [2] The pH scale is traceable to a set of standard solutions whose pH is established by international agreement. [3]
PH, abbreviation for professional hunter used in East and Southern Africa (ph), a notation used in transcripts to indicate that the transcriber does not know the spelling, usually of a name, and has spelled it as it was pronounced (phonetically) pH Care, a feminine hygiene brand in the Philippines owned by UL Skin Sciences, Inc., a subsidiary ...
The peso is usually denoted by the symbol "₱". This symbol was added to the Unicode standard in version 3.2 and is assigned U+20B1 ₱ PESO SIGN (₱).The symbol can be accessed through some word processors by typing in 20b1 and then pressing the Alt+X buttons simultaneously, or by pressing and holding Alt, then pressing 8369 on the keypad. [3]
PH Pinhole see Pinhole occluder and Visual_acuity#Legal_definitions: PHNI Pinhole No Improvement see Pinhole occluder and Visual_acuity#Legal_definitions: PHVA Pinhole Visual Acuity: PL Perception of light POH / PrOH Previous ocular history PPA Peri-papillary atrophy Pt Patient RAPD Relative afferent pupillary defect OD Right eye (oculus dexter ...
LSFW, meaning Less Safe For Work. Used in corporate emails to indicate that the content may be sexually explicit or profane, helping the recipient to avoid potentially objectionable material. MIA, meaning Missing In Action. Used when original email has lost in work process. NIM, meaning No Internal Message. Used when the entire content of the ...
In running text, more natural wording is often better ("the US state of Georgia", "US-based Great Northern Railway", "the Labour Party of the UK"), though this may depend on context. To help navigation to article titles with these United States abbreviations, please create a redirect that contains (U.S.) or (US) as needed.
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In and of themselves, pH indicators are usually weak acids or weak bases. The general reaction scheme of acidic pH indicators in aqueous solutions can be formulated as: HInd (aq) + H 2 O (l) ⇌ H 3 O + (aq) + Ind − (aq) where, "HInd" is the acidic form and "Ind −" is the conjugate base of the indicator. Vice versa for basic pH indicators ...