KRAHNEN laboratory technology

Gravimetric analyses and controls of pigments and fillers

Our test procedures

DIN EN ISO 787 – 18

ASTM D 1514

ASTM D 7724

Krahnen standardized testing devices

Methods for the determination of impurities

Analysis of the sieve residue

ASTM D 1514

Analysis of the sieve residue

DIN EN ISO 787-18

Mechanisches Spülverfahren

Funktionsprinzip nach ASTM  D 7724

Prüfstation“TEST SET NDA VACU“
for the analysis of sieve residue

 

Mechanical flushing method
Functional principle according to ASTM D 7724

This test method covers the determination of non-dispersible matter after mechanical water flushing of for example regular untreated carbon blacks. It may not be applicable to oil-treated carbon blacks because the oil would prevent proper wetting of the black by water.

  • High-quality, reliable and durable technology
  • Simple handling, servicing and evaluation
  • Fully-automatic operating program
  • Collecting tank 50liter with integrated water pump (fully automatic)
  • Handy screens (diameter 105 mm)
  • Simplest sieve entry and removal
  • Absolute reproducibility of screening results
  • No dust forming due to sealed construction
  • Glass vessel for observation of process
  • Simplest care
  • Space saving construction
  • Automatic lifting system for vessel lid
  • Low noise level

Prüfstation „TEST SET MT1“
station for the analysis of sieve residue

Mechanical flushing method (according to F. Mocker)
Functional principle according to DIN EN ISO 787-18

The device is used for gravimetrical analysis and checks of pigments and fillers / extenders within the quality control.

Advantages

  • High-quality, reliable and durable technology
  • Exact construction according to DIN EN ISO 787-1
  • Measurement ranges from 0,010 mm to 0,9 mm
  • Use of tested screen fabric according to DIN ISO 3310-1
  • Simple handling, servicing and evaluation
  • Absolute reproducibility of screening results
  • Handliche Siebe (Durchmesser 50mm, Gewicht ab 5g)
  • Simplest sieve entry and removal
  • Automatic lifting system for vessel lid
  • No dust forming due to sealed construction
  • Glass vessel for observation of process
  • Low noise level
  • Simplest care
  • Space saving construction
  • Automatic lifting system for vessel lid
  • Integrated control of water flow rate, pressure and quality

„TEST SET A 2000“

Mechanical flushing method
Functional principle according to ASTM-D 1514

This test method covers the determination of non-dispersible matter after mechanical water flushing of for example regular untreated carbon blacks. It may not be applicable to oil-treated carbon blacks because the oil would prevent proper wetting of the black by water.

Advantages

  • High-quality, reliable and durable technology
  • Measurement ranges from 0.025 mm to 1 mm
  • Simple handling
  • Free flushing nozzle in lid for (funnel) vessel
  • Handy sieves (diameter 50 mm, weight from 5 g)
  • Simplest sieve entry and removal
  • Absolute reproducibility of screening results
  • No dust forming due to sealed construction
  • Simplest care
  • Space saving construction
  • Low noise level

KRAHNEN

Company philosophy

Since 1970 the KRAHNEN Group has become a competitive supplier of strategic technologies for the cleaning industry and the laboratory, automobile and chemical industries due to its customer orientation.

The KRAHNEN GmbH (Ltd.) offers problem solving solutions for maintenance and quality control for the chemical, pharmaceutical, petro and explosives industries. The product range contains particularly testing devices for the analysis of sieve residue and cleaning systems for potentially explosive and hazardous locations
Our know how enables us to offer carefully selected products that are the best in their class and guarantee a higher profitability for our customers. Our customers appreciate the advantages that come with an integrated total solution from one source combined with the goal of higher profitability.

"Apart from delivering high product quality and reliable service we focus on detailed and competent customer consulting. We are a co-operative and flexible group of companies with quick reaction times and pay special attention to developing long-term relationships with our customers."

Guido Garnies, CEO KRAHNEN GmbH

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