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Standard ČSN ISO 6618 1.11.2006 preview

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ČSN ISO 6618 (656070)

Petroleum products and lubricants - Determination of acid or base number - Colour-indicator titration method



STANDARD published on 1.11.2006


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The information about the standard:

Designation standards: ČSN ISO 6618
Classification mark: 656070
Catalog number: 76829
Publication date standards: 1.11.2006
SKU: NS-179759
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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The category - similar standards:

Petroleum products in generalLubricants, industrial oils and related products

Annotation of standard text ČSN ISO 6618 (656070):

Norma je českou verzí mezinárodní normy ISO 6618:1997. Norma popisuje metodu titrace na barevný indikátor pro stanovení kyselých a zásaditých složek v ropných výrobcích a mazivech, které jsou rozpustné ve směsi toluenu a 2-propanolu. Je použitelná pro stanovení kyselin a zásad, jejichž disociační konstanty ve vodě jsou větší než 10-9. Extrémně slabé kyseliny a zásady, jejichž disociační konstanty jsou menší než 10-9, neruší. Soli reagují, jsou-li jejich hydrolytické konstanty větší než 10-9. V normě jsou uvedeny používané chemikálie a materiály, odběr vzorků, zkušební postup, výpočet čísla kyselosti, čísla kyselosti silné kyseliny a čísla alkality. Je zde uvedena shodnost a protokol o zkoušce. V příloze A je uvedena specifikace p-naftolbenzeinu, který se používá pro stanovení a v příloze B je uvedeno stanovení rozsahu pHr pro indikátor p-naftolbenzein.

Preview of the standard ČSN ISO 6618 (656070)

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