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Wood preservation - Wikipedia

All measures that are taken to ensure a long life of wood fall under the definition wood ... Wood that has been industrially pressure-treated with approved preservative products .... A waterborne copper naphthenate is sold to consumers under the ... a vacuum and pressure cycle, and the treated wood is then stacked to dry....<<more>>

21759 Pressure treat wood using waterborne preservatives - NZQA

... knowledge of the operation of pressure treatment plants for waterborne preservatives; demonstrate and .... spot test solutions and chemical viability, vacuum and pressure gauges or certification, sensors, metric ruler, calibrated sight tubes....<<more>>

Vacuum-pressure process for treatment of sawn rubberwood 21 ...

Download scientific diagram | Vacuum-pressure process for treatment of ... and creosote solutions, oil-based preservatives, and water-based preservatives....<<more>>

Basics of Pressure Treatment of Wood - OSU Fact Sheets

In a typical pressure treatment process, wood is placed in ... tank, and then a vacuum is applied to clean the excessive ... naphthenate are water-borne preservatives which have been ... chemical per unit volume, usually lb/ft3 or kg/m3. Based......<<more>>

Preservative Treatment of Wood by Pressure Methods - Railway Tie ...

When the timber is given a preliminary steaming-and-vacuum treat- ment (p. ... A discussion of pressure-treating-plant equipment and of various methods of treating wood .... Some of the water-borne preservatives contain chemicals that are in-....<<more>>

Preservative Types - International Timber Solutions

CCA water-borne preservative used to be by far the most widely used ... scale preservative chemical treatment is carried out by vacuum-pressure methods in......<<more>>

Wood Preservation and Associated Antimicrobial - EPA

The pressure treatment of wood is a step in the production of a range of wood ... vacuum pressure and double vacuum or low pressure processes (Table 4.7). ... Water-borne wood preservatives, such as CCA, which is used on industrial and ... on pads in the treatment facility to dry and any residual chemical is collected and....<<more>>

Preservative-Treated Wood and Alternative Products in the Forest ...

10. Other Waterborne Preservatives ..... widely used by pressure-treatment facilities, but is available ..... els of initial vacuum and often uses an extended final....<<more>>

WOOD PRESERVATION Chapter 9 - Forest Products Laboratory

The use of preservative chemicals and treated wood has been and still is sometimes ..... Although sapwood is rarely durable, the heartwood of many tree species exhibits ..... Water-based formulations are not used in pressure treatment. 5.2.5. ..... Combined vacuum and pressure treatments are the most common methods of....<<more>>

Unclassified - ECHA

applied* to wood** or wood-based products themselves, or which are applied ..... At least 16 vacuum-pressure plants, all using inorganic wood preservatives (salts). ... formulated to give additional properties to the treated timber such as water......<<more>>

Wood preservation - Wikipedia

All measures that are taken to ensure a long life of wood fall under the definition wood ... Wood that has been industrially pressure-treated with approved preservative products .... A waterborne copper naphthenate is sold to consumers under the ... a vacuum and pressure cycle, and the treated wood is then stacked to dry....<<more>>

21759 Pressure treat wood using waterborne preservatives - NZQA

... knowledge of the operation of pressure treatment plants for waterborne preservatives; demonstrate and .... spot test solutions and chemical viability, vacuum and pressure gauges or certification, sensors, metric ruler, calibrated sight tubes....<<more>>

Vacuum-pressure process for treatment of sawn rubberwood 21 ...

Download scientific diagram | Vacuum-pressure process for treatment of ... and creosote solutions, oil-based preservatives, and water-based preservatives....<<more>>

Basics of Pressure Treatment of Wood - OSU Fact Sheets

In a typical pressure treatment process, wood is placed in ... tank, and then a vacuum is applied to clean the excessive ... naphthenate are water-borne preservatives which have been ... chemical per unit volume, usually lb/ft3 or kg/m3. Based......<<more>>

Preservative Treatment of Wood by Pressure Methods - Railway Tie ...

When the timber is given a preliminary steaming-and-vacuum treat- ment (p. ... A discussion of pressure-treating-plant equipment and of various methods of treating wood .... Some of the water-borne preservatives contain chemicals that are in-....<<more>>

Preservative Types - International Timber Solutions

CCA water-borne preservative used to be by far the most widely used ... scale preservative chemical treatment is carried out by vacuum-pressure methods in......<<more>>

Wood Preservation and Associated Antimicrobial - EPA

The pressure treatment of wood is a step in the production of a range of wood ... vacuum pressure and double vacuum or low pressure processes (Table 4.7). ... Water-borne wood preservatives, such as CCA, which is used on industrial and ... on pads in the treatment facility to dry and any residual chemical is collected and....<<more>>

Unclassified - ECHA

applied* to wood** or wood-based products themselves, or which are applied ..... At least 16 vacuum-pressure plants, all using inorganic wood preservatives (salts). ... formulated to give additional properties to the treated timber such as water......<<more>>

Preservative-Treated Wood and Alternative Products in the Forest ...

10. Other Waterborne Preservatives ..... widely used by pressure-treatment facilities, but is available ..... els of initial vacuum and often uses an extended final....<<more>>

WOOD PRESERVATION Chapter 9 - Forest Products Laboratory

The use of preservative chemicals and treated wood has been and still is sometimes ..... Although sapwood is rarely durable, the heartwood of many tree species exhibits ..... Water-based formulations are not used in pressure treatment. 5.2.5. ..... Combined vacuum and pressure treatments are the most common methods of....