Probador de freeness estándar canadiense
Probador del método estándar canadiense del grado de pureza de la pulpa
TAPPI T 227 ISO 5267-2 BS 6035-2
AS/NZS 1301.206s CPPA C1 ESCANEO C21

Canadian Standard Freeness Tester – Test Method:

Freeness is a quantitative measure of the Drainage Behavior of a diluted Pulp Suspension containing 3 g of absolutely dry fiber per 1 L of water. It reflects two critical fiber characteristics:

• Surface condition and
• Degree of fiber swelling

Because drainage behavior is sensitive to process variables, freeness results depend strongly on pulp preparation, temperature and water quality.

los Canadian Standard Freeness (CSF) method evaluates the Drainage Performance of a Pulp Suspension at a controlled concentration of 0.3 ± 0.0005% and a test temperature of 20 °C. Under standardized conditions, the CSF value is defined as the volume of filtrate (mL) discharged through the side orifice of this professional Probador de freeness estándar canadiense.

Este Precision Canadian Standard Freeness Tester is engineered for repeatable, high‑accuracy drainage measurements and consists of:

Drainage Chamber

Manufactured from high‑grade stainless steel for dimensional stability and corrosion resistance.
The base of the Main Cylinder incorporates a precision‑machined stainless steel Sieve.
An airtight bottom Sealing Cover, mounted on a hinge and secured with a sealing bracket, ensures consistent test conditions.
A sealed stainless steel Top Sealing Cover maintains controlled internal geometry during sample loading.

Drainage Funnel Assembly

A precision‑machined Conical Funnel directs filtrate flow with minimal turbulence.
Both the Main Cylinder and precision engineered Funnel are supported by rigid stainless steel Brackets designed to eliminate vibration and mechanical drift.

Operational Features

After the Pulp Suspension is introduced, the operator opens the Bottom Sealing Cover y Air Valve, initiating controlled drainage.
Opcional Dual Level Bubbles—one on the Funnel Lid and one on the Lower Support—ensure this professional Probador de freeness estándar canadiense is perfectly leveled prior to testing, a critical factor for measurement repeatability.
All structural components are fabricated from high‑quality stainless steel, providing ergonomic design, long‑term stability, mechanical robustness and reliable performance in laboratory and industrial environments.