Filter paper [German version]

Table of contents

General:
Product information
Packaging
Transport
  Container transport
  Cargo securing


Risk factors and loss prevention:
Temperature Odor
Humidity/Moisture Contamination
Ventilation Mechanical influences
Biotic activity Toxicity / Hazards to health
Gases Shrinkage / Shortage / Theft
Self-heating / Spontaneous combustion Insect infestation / Diseases




Product information

Product name

German Filterpapier, Filtrierpapier
English Filter paper
French Papier à filtrer
Spanish Papel de filtro
CN/HS number * 4805 40 00 or 4823 20 00


(* EU Combined Nomenclature/Harmonized System)



Product description

Filter paper is a woodfree, unsized absorbent paper manufactured from rags, which is particularly pure and has a defined separation capacity and filtration rate.


Quality / Duration of storage

Separation capacity and filtration rate are determined by the size and number of pores. These properties can be influenced by varying the degree of beating of the pulps or by providing a crepe finish on the paper.

When undyed, filter paper is white in color. If exposed to excessive sunlight or other light, it is subject to yellowing. 


Intended use

Filter paper is used in the form of round filters for separating suspended substances from liquids (e.g. coffee filters).


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Packaging

Filter paper is transported wrapped in bales and strapped with metal strapping.

Round filters are retailed in folding cartons as the sales packaging. For transport purposes, these cartons are consolidated into larger units in corrugated board shipping packaging.

Packaging sizes are so selected that the dimensions of the individual area modules or area module multiples are conformed to the conventional pallet sizes (800x1200 mm and 1000x1200 mm) and cargo units may thus be produced.


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Transport

Symbols

Symbol, general cargo

General cargo



Means of transport

Truck, ship (specially designed for transporting paper), railroad


Container transport

Transport in standard containers , subject to compliance with limits for water content of goods, packaging and flooring.


Cargo handling

It is imperative that the goods be protected from moisture (rain, snow) during cargo handling, as there is a risk of losses caused by swelling and tearing of individual layers.

Incorrect handling during loading and unloading and storage entails the risk of damage. Bales must not be lifted by the strapping for example.


Stowage factor

3.46 m³/t (wrapped 145 kg bales with metal strapping) [1]



Stowage space requirements

Holds/containers must be absolutely dry and clean. The goods must be protected from any possible leakage from hydraulic lines. In addition, the holds must be protected against ingress of moisture.


Segregation

Packing paper


Cargo securing

The cargo is to be secured in such a way that the bales or strapping are not damaged. Undamaged strapping is essential to maintain compression of the bales during transport.

For cargo securing, see also chapter entitled Paper trade in the GDV Cargo Securing Manual.

For further information see also the chapters entitled

"Basic physical principles of cargo securing",
"Road vehicles, selection, equipping and loading capacity",
"Cargo securing materials".



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Risk factors and loss prevention

RF Temperature

Filter paper requires particular temperature, humidity/moisture and possibly ventilation conditions (SC VI) (storage climate conditions) .

Most favorable travel temperature range: 0 - 25°C [1]

Optimum travel temperature: 20°C [1]

During cargo handling, temperatures below 0°C are also permissible for short periods. The product must be protected from heat sources and intense solar radiation in order to avoid brittleness and yellowing.


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RF Humidity/Moisture

Filter paper requires particular temperature, humidity/moisture and possibly ventilation conditions (SC VI) (storage climate conditions) .

Designation Humidity/water content Source
Relative humidity 65 - 70% [1]
Water content 5 - 8% [1]
Maximum equilibrium moisture content 70% [1]


Protection from dampening is essential if transport is to proceed without damage: filter paper is hygroscopic and must thus be protected from all moisture, such as rain, snow, condensation water, seawater and extremely high levels of relative humidity, or damp stacking surfaces.

Sorption isotherm

Figure 1


Exposure to moisture causes waviness, a reduction in mechanical tensile strength, swelling and, on subsequent drying, staining (drying rings).

Stop cargo handling operations during precipitation and close the holds. 

Cargo sweat is particularly likely to occur during voyages from cold to hot climates or during unloading in tropical ports if the goods were not sufficiently warmed up during the voyage and were exposed to the hot ambient air upon opening of the hatch covers or container doors.

Filter paper must not be stowed in a hold with other goods which release moisture.


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RF Ventilation

Filter paper requires particular temperature, humidity/moisture and possibly ventilation conditions (SC VI) (storage climate conditions) .

Recommended ventilation conditions: air exchange rate: 6 changes/hour (airing), if the dew point of the external air is lower than the dew point of the hold air.

On voyages from cold to hot climates (Scandinavian ports, Continental ports - tropical unloading ports in Africa, Asia), every possible opportunity for warming the paper must be used to avoid cargo sweat.


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RF Biotic activity

This risk factor has no significant influence on the transport of this product.


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RF Gases

This risk factor has no significant influence on the transport of this product.


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RF Self-heating / Spontaneous combustion

Filter paper is readily combustible and should therefore be protected from flying sparks. Smoking must be strictly prohibited. When stacked, filter paper has a tendency to heat-induced spontaneous combustion.

Unlike CO2, water and foam cause considerable cargo losses due to wetting and swelling when used as fire-extinguishing agents.


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RF Odor

Active behavior Filter paper does not release any odor.
Passive behavior It is extremely sensitive to unpleasant and/or pungent foreign odors.



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RF Contamination

Active behavior Filter paper is a very clean cargo.
Passive behavior Due to its intended use, filter paper is extremely sensitive to contamination and must be kept absolutely clean. It must in particular be stowed away from colorants, acids, chemicals and fats/oils and be protected from dust.



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RF Mechanical influences

Filter paper is very sensitive to mechanical influences such as pressure, impact and friction. The risk of damage is greatest during cargo handling. Since exposure to moisture reduces mechanical strength, the product must be kept absolutely dry.


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RF Toxicity / Hazards to health

This risk factor has no significant influence on the transport of this product.


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RF Shrinkage / Shortage / Theft

This risk factor has no significant influence on the transport of this product.


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RF Insect infestation / Diseases

This risk factor has no significant influence on the transport of this product.


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