Sample preparation
Preparation of samples for static image analysis
Static image analysis is ideal for the universal measurement of various shape parameters of fibres and particles.
However, different sample preparations lead to results with strong deviations. Thus, the reproducibility of the measurements is questioned.
The Faserinstitut Bremen e.V. and the Sächsisches Textilforschungsinstitut e.V. have developed a standardised system for sample preparation. Unknown samples are systematically assigned to material groups.
The methods for reproducible sample preparation are described below.
Any questions?
Contact
Dipl.-Ing.
Marian Hierhammer
Manager Accredited Test Lab
Phone: +49 371 5274-242
Sample preparation by sieving
Sand
Steps:
- Sieve selection according to particle size
- Sample distribution
- Sieving the sample
Notes and links
Documentation of the results of the corresponding INNO-KOM research projects "StaPaFaB – Standardisation of sample preparation for analysing the geometry of fibres (Reg. No. 49VF20017) and particles (Reg. No. 49VF20016)"
Flock fibres
Steps:
- Sieve selection according to particle size
- Sample distribution
- Using a brush for separating the particles
Notes and links
Documentation of the results of the corresponding INNO-KOM research projects "StaPaFaB – Standardisation of sample preparation for analysing the geometry of fibres (Reg. No. 49VF20017) and particles (Reg. No. 49VF20016)"
Manual vibration method
Steps:
- Select vibration surface
- Apply sample quantity
- Initiate vibration impulse
Notes and links
Documentation of the results of the corresponding INNO-KOM research projects "StaPaFaB – Standardisation of sample preparation for analysing the geometry of fibres (Reg. No. 49VF20017) and particles (Reg. No. 49VF20016)"
Sample preparation using compressed air
Steps:
- Connect compressed air
- Place sample in ZIP bag
- Release short bursts of compressed air
Notes and links
Documentation of the results of the corresponding INNO-KOM research projects "StaPaFaB – Standardisation of sample preparation for analysing the geometry of fibres (Reg. No. 49VF20017) and particles (Reg. No. 49VF20016)"
Wet preparation
Steps:
- Fill glass tray with water
- Add sample quantity
- Separate sample
Notes and links
Documentation of the results of the corresponding INNO-KOM research projects "StaPaFaB – Standardisation of sample preparation for analysing the geometry of fibres (Reg. No. 49VF20017) and particles (Reg. No. 49VF20016)"
Manual sample preparation
Natural fibres
Steps:
- Align sample manually
- Separate and parallelise
- Deposit as fibre beard
Notes and links
Documentation of the results of the corresponding INNO-KOM research projects "StaPaFaB – Standardisation of sample preparation for analysing the geometry of fibres (Reg. No. 49VF20017) and particles (Reg. No. 49VF20016)"
Tear fibres
Steps:
- Align sample manually
- Separate and parallelise
- Deposit as fibre beard
Notes and links
Documentation of the results of the corresponding INNO-KOM research projects "StaPaFaB – Standardisation of sample preparation for analysing the geometry of fibres (Reg. No. 49VF20017) and particles (Reg. No. 49VF20016)"
Carpet recyclate
Steps:
- Splitting into subsamples
- Separate into individual components
- Two-dimensional distribution
Notes and links
Documentation of the results of the corresponding INNO-KOM research projects "StaPaFaB – Standardisation of sample preparation for analysing the geometry of fibres (Reg. No. 49VF20017) and particles (Reg. No. 49VF20016)"
Analysis of fibre width
Steps:
- Align sample manually
- Cut sample
- Distribution on sample carrier
Notes and links
Documentation of the results of the corresponding INNO-KOM research projects "StaPaFaB – Standardisation of sample preparation for analysing the geometry of fibres (Reg. No. 49VF20017) and particles (Reg. No. 49VF20016)"