pH вредност

pH вредност

Degree of acidity or alkalinity measured on a scale from 0 to 14 with 7 the neutral point. Measurement of pH is important to quality control in making paper and pigments and in the preparation of platemaking chemicals. PH control of press fountain solutions is also essential to assure maximum plate-life and uniform ink drying. From 0 to 7 is acid; from 7 to 14 is alkaline.

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Loại từ: noun
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Ngành nghề/Lĩnh vực: Printing & publishing; Manufacturing
Category: Paper; Paper production
Company: Neenah Paper
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вредност

Art history; Visual arts

The relative darkness or lightness of a color. White represents the highest value, black the lowest, and greys all possible values in between. Every hue has an inherent value (e. ...

pH

Medical; Herbal medicine

The potential of hydrogen. A "neutral" pH is expressed as 7.0 (water), with greater being alkaline and lesser being acidic. Expressed logarithmically like the Richter's Scale, 6.9 ...

pH

Geography; Physical geography

Scale used to measure the alkalinity or acidity of a substance through the determination of the concentration of hydrogen ions in solution. A pH of 7.0 is neutral. Values below ...

временска вредност

Financial services; General Finance

Applies to derivative products. Portion of an option price that is in excess of the intrinsic value, due to the amount of volatility in the stock; sometime referred to as premium. ...

стандардизирана вредност

Financial services; General Finance

Also called the normal deviate, the distance of one data point from the mean, divided by the standard deviation of the distribution.

неутрална pH

Printing & publishing; Manufacturing; Paper; Paper production

Offset papers manufactured with a pH of 6. 0 to 8. 0 on a scale of. 0 to 14. 0. Neutral pH factors are built into paper as a minimum value, to increase stability and improve ...

рециклирана хартија

Printing & publishing; Manufacturing; Paper; Paper production

Paper made from old paper pulp; used paper is cooked in chemicals and reduced back to pulp, after it is deinked.

неизбелена

Printing & publishing; Manufacturing; Paper; Paper production

Paper not treated to bleaching; it has a light brown hue.

сулфат

Printing & publishing; Manufacturing; Paper; Paper production

Alkaline process of cooking pulp also known as the kraft process. Wood chips are cooked to a high brightness without fiber degradation in a substance of sodium sulfate and sodium ...

сулфит

Printing & publishing; Manufacturing; Paper; Paper production

Acid process of cooking pulp. Wood chips are cooked in a solution of bisulphite.

толеранција на тежината

Printing & publishing; Manufacturing; Paper; Paper production

Acceptable degree of variation in a paper's shipped weight, usually within 5 percent of the paper's nominal weight.

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