неутрална pH

неутрална pH

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 permanence for use in printing of archival records.

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Company: Neenah Paper
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pH

医療; 漢方薬、生薬

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

地理学; 自然地理学

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 ...

неутрална почва

農業; 水稲科学

Specifically, a soil in which the surface layer, at least down to normal plow depth, is neither acid nor alkaline in reaction. Practically, a soil in which the pH of the surface ...

неутрална мутација

考古学; 人類の進化

A base-pair change in the gene that changes a codon in the mRNA so that there is no change in the function of the protein translated from that message.

неутрална атмосфера

地理学; 自然地理学

Condition in the atmosphere where isolated air parcels do not have a tendency to rise or sink. The parcels of air tend to be same temperature as the air that surrounds them.

рециклирана хартија

印刷＆出版; 製造; 製紙; 紙製品

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

неизбелена

印刷＆出版; 製造; 製紙; 紙製品

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

сулфат

印刷＆出版; 製造; 製紙; 紙製品

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

印刷＆出版; 製造; 製紙; 紙製品

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

толеранција на тежината

印刷＆出版; 製造; 製紙; 紙製品

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

бела хартија

印刷＆出版; 製造; 製紙; 紙製品

A tern often applied to printing and writing grade papers and envelopes.

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путер колачи

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