EN 322:1993 Wood-based panels Determination of moisture content
If you are interested in this need this standard, please email us(info@linyiluju.com) and we will send it to you for free and discuss this standard and product with you. You are welcome to come to China for factory inspection and visit our factory and products.
This European Standard was approved by CEN on 1992-12-15.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions(English,French, German).A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CentralSecretariat has the same status as the official versions.
CEN members are the national standards bodies of Austria,Belgium, Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,Switzerland and United Kingdom
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions(English,French, German).A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CentralSecretariat has the same status as the official versions.
CEN members are the national standards bodies of Austria,Belgium, Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,Switzerland and United Kingdom
Foreword
This European Standard was prepared by Working Group 4“Common test methods”(Secretariat:United Kingdom)of Technical Committee CEN/TC 112“Wood-based panels” (Secretariat:Germany).
The text is based on ISO 9425:1989 which has been elaborated with European participation.
This Standard is one of a series of standards specifying methods of test for determining dimensions and properties of wood-based panels. No existing European Standard is superseded.
This European Standard shall be given the status of a national standard,either by publication of an identical text or by endorsement,at the latest by August 1993,and conflicting national standards shall be withdrawn at the latest by December 1994.
In accordance with the Common CEN/CENELEC Rules the following countries are bound to implement this European Standard:Austria, Belgium,Denmark,Finland,France,Germany, Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden, Switzerland and United Kingdom.
This European Standard was prepared by Working Group 4“Common test methods”(Secretariat:United Kingdom)of Technical Committee CEN/TC 112“Wood-based panels” (Secretariat:Germany).
The text is based on ISO 9425:1989 which has been elaborated with European participation.
This Standard is one of a series of standards specifying methods of test for determining dimensions and properties of wood-based panels. No existing European Standard is superseded.
This European Standard shall be given the status of a national standard,either by publication of an identical text or by endorsement,at the latest by August 1993,and conflicting national standards shall be withdrawn at the latest by December 1994.
In accordance with the Common CEN/CENELEC Rules the following countries are bound to implement this European Standard:Austria, Belgium,Denmark,Finland,France,Germany, Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden, Switzerland and United Kingdom.
1 Scope
This European Standard specifies a method for determining the moisture content of test pieces of wood-based panels.Such result may be used to estimate the moisture content of wood-based panels according to EN 326-1.
2 Normative references
This European Standard incorporates by dated or undated reference,provisions from other publications.These normative references are cited at the appropriate places in the text and the publications are listed hereafter.For dated references,subsequent amendments to or revisions of any of these publications apply to this European Standard,only when incorporated in it by amendment or revision.For undated references the latest edition of the publication referred to applies.
EN 326-1,Wood-based panels—Sampling,cutting and inspection—Part 1:Sampling and cutting of test pieces and expression of test results¹).
This European Standard specifies a method for determining the moisture content of test pieces of wood-based panels.Such result may be used to estimate the moisture content of wood-based panels according to EN 326-1.
2 Normative references
This European Standard incorporates by dated or undated reference,provisions from other publications.These normative references are cited at the appropriate places in the text and the publications are listed hereafter.For dated references,subsequent amendments to or revisions of any of these publications apply to this European Standard,only when incorporated in it by amendment or revision.For undated references the latest edition of the publication referred to applies.
EN 326-1,Wood-based panels—Sampling,cutting and inspection—Part 1:Sampling and cutting of test pieces and expression of test results¹).
3 Principle
Determination,by weighing,of the loss of mass of each test piece between its state at the time of sampling and its state after drying to constant mass at(103±2)℃,and calculation of this loss of mass as a percentage of the mass of the test piece after drying;these results are used to estimate the moisture content of whole boards.
4 Apparatus
4.1 Balance
Balance,scale interval 0,01 g.
4.2 Drying oven
Ventilated drying oven,capable of being controlled at(103±2)℃.
4.3 Desiccator
Silica gel containing a desiccant,to maintain the air as close as possible to the absolutely dry condition.
Determination,by weighing,of the loss of mass of each test piece between its state at the time of sampling and its state after drying to constant mass at(103±2)℃,and calculation of this loss of mass as a percentage of the mass of the test piece after drying;these results are used to estimate the moisture content of whole boards.
4 Apparatus
4.1 Balance
Balance,scale interval 0,01 g.
4.2 Drying oven
Ventilated drying oven,capable of being controlled at(103±2)℃.
4.3 Desiccator
Silica gel containing a desiccant,to maintain the air as close as possible to the absolutely dry condition.
BS EN 315:2000 Plywood Tolerances for dimensions
