Rango de operaciones*

Rango de arranque

Porcentaje de sólidos (se obtiene por refractómetro)

3.6% - 7.0%

7.0% - 10.8%

Concentración de AQR-1000 (Utilizar la ecuación y=2.862X-0.30, donde X es la lectura del refractómetro, como porcentaje de sólidos). La concentración es el porcentaje w/w.

10.0% - 20.0%

20.0% - 30.0%

Parámetro

Aspecto

Líquido transparente ligeramente amarillo

pH (como rango de control)

10.28 – 10.54

pH (como concentrado)

11.21

Ecuación de conversión para titulación

y= 4.406X – 0.19

Ecuación de conversión para sólidos

y= 2.862X – 0.30

Densidad (25ºC kg/l)

1.120

Description

Standards

Anton Paar’s long standing experience as a measuring specialist for the beverage industry (soft drinks, beer, spirits, etc.) and the highly precise results DMA delivers in next to no time have established it as the benchmark for this field.

DMA meets the strict regulations in the pharmaceutical and cosmetic industries – with electronic signatures, various user levels and internal write protection.

A thorough, fast viscosity correction and a measuring range up to 90 °C make DMA the perfect density meter for highly viscous samples such as bitumen, heavy fuel oil, or crude oil.

Since DMA only requires a minimal amount of expensive sample for its density measurement in order to deliver highly precise results after very short measuring times, the instrument is highly valued in the flavors & fragrances industry.

DMA is renowned worldwide for its robustness. The chemical industry relies on it. Apart from this, all common density/concentration tables are stored in the instrument, and new substances are easily programmed as a table or a polynomial. The use of DMA has considerably reduced the workload in the chemical industry.

The main reasons for R&D departments to choose DMA are the great accuracy, the small sample volume requirement and the temperature scan by means of the reference oscillator: The automatic temperature change right down to one-hundredth-steps guarantees easy, time-saving work.

With density measurement results as accurate as up to ± 5 x 10-6 g/cm3, a temperature accuracy of ± 0.01 °C and a sample volume requirement of only 1 mL, DMA is the high-precision reference instrument with the least sample consumption for calibration offices.

Bioethanol producers use DMA because its unprecedented accuracy assures considerable savings. The biodiesel industry chooses the instrument for its robustness and thorough, fast viscosity correction.

Industry

Statement

Use

Beverages

“DMA has been
established in our industry for years.”

• Determination of sugar content (g/L, °Brix), alcohol content (%v/v, °Proof)
• Determination of extract content (°Plato, °Balling)
• Beer quality control
• Quality control of soft drinks (°Brix)

Pharma & Cosmetics

“DMA complies with our quality guidelines.”

• Quality control of raw materials and final products
• Determination of specific gravity and density (g/cm3, g/mL) of medicinal formulations
• Filling volume determination

Petroleum

“DMA is absolutely ideal for our highly viscous samples.”

• Quality control of raw materials and final products (API, kg/m3)
• Quality control of additives
• Blending checks

Flavors & Fragrances

“Small sample volume requirements are ideal for us, of course.”

• Quality control of raw materials and final products (g/cm3)
• Specification checks
• Filling volume determination

Chemicals

“DMA is astoundingly resistant - an absolute must for our industry.”

• Quality control of raw materials (°Baumé, g/cm3, kg/m3) and final products
• Concentration determination of acids and bases (%w/w, %m/m, mol/L)
• Solids content determination of dispersions
• Reaction process control

Research and Development

“The temperature scan saves us a lot of time.”

• Determination of partial specific volume
• Determination of density gradient for ultracentrifuging
• Density/temperature profile
• Determination of molarity (mol/L) and normality (N)

Calibration Offices, Testing Agencies

“We have been using DMA for more than twenty years.”

• Determination of alcohol content (%v/v, °Proof) for fiscal reasons
• Filling volume determination
• Stability monitoring of density standards

Biofuels

“In short: optimal quality control for an optimal product.”

• Quality control of raw materials and final products
• Production control (%v/v, °Proof, g/cm3)
• Blending checks

DMA is also used in the food industry, semiconductor industry, biotechnology, plastics industry, automotive industry.