共找到 637 条与 纸浆与纸板 相关的标准,共 43 页
Testing of solid fibre board - Water absorption and swelling, water immersion
This International Standard specifies a method for the determination of the acid-insoluble ash of pulp. It is applicable to all types of pulps.
Pulps - Determination of acid-insoluble ash
This International Standard specifies a method for determining the grammage of the component layers from which corrugated fibreboard has been made. This International Standard is applicable to all types of corrugated fibreboard.
Corrugated fibreboard - Determination of grammage of the component papers after separation (ISO 3039:2010)
Corrugated fibreboard - Determination of single sheet thickness
Pulps. Determination of mass fraction of fines
This part of ISO 5264 specifies a method for the laboratory beating of pulp using a PFI mill. The description is limited to the sampling, preparation and beating of the pulp and the beating equipment. NOTE Beating is a preliminary step in testing the physical properties of pulp. In principle, this method is applicable to all kinds of chemical and semi-chemical pulps. In practice, the method might not give satisfactory results with certain pulps having extremely long fibres.
Pulps - Laboratory beating - Part 2: PFI mill method (ISO 5264-2:2011); German version EN ISO 5264-2:2011
This part of ISO 5264 specifies a method for the laboratory beating of pulp using a PFI mill. The description is limited to the sampling, preparation and beating of the pulp and the beating equipment. NOTE Beating is a preliminary step in testing the physical properties of pulp. In principle, this method is applicable to all kinds of chemical and semi-chemical pulps. In practice, the method might not give satisfactory results with certain pulps having extremely long fibres.
Pulps. Laboratory beating. PFI mill method
This International Standard describes the procedure for determining the fines mass fraction of all kinds of pulp by means of a perforated metal plate or a single-screen fibre classifier (Dynamic Drainage Jar or similar). The screening procedure is the same for all pulps, although the mass of the test portion and the total volume of water for screening are not the same. NOTE The procedure is also applicable for most kinds of paper samples, provided that it is possible to fully disintegrate the sample.
Pulps - Determination of mass fraction of fines
This Japanese Industrial Standard specifies a method for the determination of the Kappa number of pulp. The Kappa number is an indication of the lignin content or bleachability of pulp.
Pulps -- Determination of Kappa number
Applies to pulp, paper, paperboard, and paper products, except those containing significant quantities of materials other than water that are volatile at lower than 107 C (224.6 F) or degrade above 103 C (217.4 F). Moisture is significant for economic reasons and for its effect on such properties as printability, shrinkage, dimensional stability, physical strength, and paper runnability.
Moisture in pulp, paper and paperboard
This method describes procedures for determining the edgewise compressive strength (ECT), perpendicular to the axis of the flutes, of a short column of single-, double-, or triple-wall corrugated fiberboard. The method includes procedures for cutting the test specimen, specimen support (waxed edges), and two procedures for applying the compressive force (constant strain rate, or constant load rate).
Edgewise compressive strength of corrugated fiberboard (short column test)
This method describes a procedure for measuring the bursting strength of single wall and double wall corrugated board within the range of 690 kPa (100 psi) to 4825 kPa (700 psi) employing an instrument which uses a disk shaped, molded diaphragm. A specimen of board is clamped between two platens with circular opening in their centers. The lower platen is fixed; the upper platen has an adjustable depth but remains stationary for the duration of the test. An expansible diaphragm is distended through the lower platen by means of hydraulic pressure until the specimen bursts. The maximum hydraulic pressure when the specimen ruptures is recorded.
Bursting strength of corrugated board
This method describes procedures for obtaining a representative sample for testing. It should be recognized that in an ideal situation the samples selected should represent a lot of paper or paperboard, container board, or related product, including converted paper products. However, in some situations the sample may be as small as a single sheet of paper that has been provided to the laboratory for testing and may not represent the lot from which it is obtained.
Sampling and accepting a single lot of paper, paperboard, containerboard, or related product
This method describes a procedure for measuring the crushing resistance of a laboratory fluted strip of corrugating medium, and provides a means of estimating, in the laboratory, the potential flat crush resistance of a corrugated board.
Flat crush of corrugating medium (CMT test)
This method describes a procedure for measuring the bursting strength of linerboard using a disk shaped diaphragm. Basis weights for this method should be 98 g/square meter (20/MSF) and higher. The minimum burst should be 350 kPa (51 psi). This method may also be used to test paperboard. A specimen is clamped between two platens with circular openings in their centers. An expansible diaphragm is distended through the lower platen by means of hydraulic pressure until the specimen ruptures. The maximum hydraulic pressure when the specimen ruptures is recorded.
Bursting strength of linerboard
This standard practice establishes acceptance procedures for the listing of organizations as calibration laboratories or providers of standardized materials in the TAPPI Standards. Such organizations are involved with the maintenance of master instruments, calibration of test instruments and the issuance of calibration materials or transfer standards.
Acceptance procedures for calibration laboratories providing reference materials for TAPPI Standards
This method is used to measure the air resistance of approximately 6.45 sq. cm. (l sq. in.) circular area of paper using a pressure differential of 1.22 kPa. The recommended range of the liquid column instrument is from 5 to 1800 seconds per 100 mL cylinder displacement. For more impermeable papers the time requirements become so excessive that other techniques are preferable.
Air resistance of paper (Gurley method)
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