PH

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PH

The two-character ISO 3166 country code for PHILIPPINES.
References in periodicals archive ?
Because TrakStation measures pH levels directly inside the incubator, there is no opportunity for contamination of the culture or environmental sampling errors introduced during the measurement process," said Russ Aldrich, chief executive officer.
It's a convenient method that shows the exact pH levels so you can know exactly what your soil is lacking.
There were no significant difference between pH levels of 4 and 9 for shoot number, and pH levels of 5 and 7 for shoot length.
As it is seen in the figures, a decline in pH level would lead in an increase in Absorbable Cadmium in the soil, but this is not true for the depth factor.
Which means that everything that leaves the river Marcal from here on is under the PH level of 9.
The lower-than-originally-reported pH level and fast-moving currents make officials optimistic that a natural disaster could be avoided, she said.
Summary: TEHRAN (FNA)- Research results by a unique 'natural laboratory' in the Mediterranean Sea working on the effects of rising carbon dioxide levels on life in the oceans, showed a bleak future for marine life as ocean acidity rises, and suggested that similar lowering of ocean pH levels may have been responsible for massive extinctions in the past.
coli K12 at all pH levels fitted well to a first-order kinetic model.
I've recently been told that water, either bottled or tap, probably has a PH level too low for good health and that we should purchase enhanced waters, PH level testers, etc.
Fungitrol is completely water-based, has a mild pH level, contains no heavy metals or formaldehydes, and is EPA-registered.
The dissolved oxygen is monitored, the pH level is monitored, the flow is monitored, and the temperate of the organic waste liquids and solids in the collection vessel are all monitored and data is generated therefrom.
There are various ways to raise the pH level of water (low pH leads to corrosion in the plumbing), but a majority of communities, including Spencer, use sodium hydroxide.