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Sie sind hier: Startseite / Archives for White Papers

J57/J157AB Refractometer Technical Bulletin

J57AB /J157AB Refractometers for Measurement of Urea Concentration for Diesel Engine Additives Standards Designed in accordance with DIN 70071 / ISO 22241-2 Basic operation The J57AB is a sub model of the J57HA and most details on the Technical Bulletin 941 apply; the J157AB is a sub model of the J157 and most details on […]

Gespeichert unter: Whitepaper

Automobile Industry Refractometer Options Package

Suggested users – Car and truck manufacturing factories looking to check fluids before they are put in new vehicles – Laboratories which analyze fluids from in-service vehicles – Companies making concentrated urea solutions that will eventually get diluted and sold to use in diesel engines – Companies buying concentrated urea solutions and diluting them for […]

Gespeichert unter: Whitepaper

Invert Sugar Measurements

Invert Sugar Formula

WHY MEASURE INVERT SUGAR ? – BACKGROUND Inverted sugar syrup, also called invert syrup is essentially sugar in water. Invert sugar is a mixture of the monosaccharides glucose, and fructose, that is made by hydrolytic saccharification of the disaccharide sucrose. This mixture’s optical rotation is opposite to that of the original sugar, which is why […]

Gespeichert unter: Technical, Whitepaper

European Pharmacopoeia Essential Oils for Changes Optical Rotation Measurements

.1dm - 10mm Polarimeter Cell

Changes to the European Pharmacopoeia Essential Oils regarding Optical Rotation Measurements / Polarimeter Measurements In April 2022 there is a change coming to the European Pharmacopoeia regarding the measurement of essential oils such as Sweet Orange Oil. The revised monograph requires that samples now need to be measured in a 0.1 dm (10mm) length cell […]

Gespeichert unter: Whitepaper Markiert mit: ätherische Öle, European Pharmacopeia, Optische Drehung

Accurate Determination of Sulfuric Acid Concentration

ACCURATE DETERMINATION OF SULFURIC ACID WITHIN THE CHEMICAL, ACCUMULATORS, FERTILIZERS, METAL, AND PLASTICS INDUSTRIES The Density – Concentration Relationship of H2SO4 As the concentration of the Sulfuric Acid increases, the density also increases. This fairly linearrelationship goes from 0% concentration up to approximately 96% or 97%. However, somewhere around 93% the linear relationship starts to […]

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