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| Author | : John J. Brenden |
| Publisher | : |
| Total Pages | : 32 |
| Release | : 1973 |
| Genre | : Coatings |
| ISBN | : |
| Author | : John J. Brenden |
| Publisher | : |
| Total Pages | : 29 |
| Release | : 1973 |
| Genre | : |
| ISBN | : |
To measure the effect of coating materials on smoke yield of wood, Douglas-fir plywood of exterior grade A-C quality finished with 14 coating systems was subjected to fire exposure in a chamber similar to that used in a method proposed by the National Bureau of standards. Noncoated specimens and specimens coated with each of the 14 systems were exposed to both flaming conditions at three irradiation energy levels: 2.0, 2.5, and 3.0 watts per square centimeter. The purpose was to determine the smoke yield from uncoated wood under fire exposure and if the amount of smoke given off by wood could be reduced by the coatings. Smoke development was measured as a 'specific optical density' parameter based on light transmission, length of light path, area of specimen, and volume of the chamber. Comparisons were based on a maximum specific optical density parameter and on other parameters developed from specific optical density-time curves.
| Author | : John J. Brenden |
| Publisher | : |
| Total Pages | : 16 |
| Release | : 1975 |
| Genre | : Fire resistant materials |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 478 |
| Release | : 1968 |
| Genre | : Forest products |
| ISBN | : |
| Author | : J. Dobbin McNatt |
| Publisher | : |
| Total Pages | : 516 |
| Release | : 1973 |
| Genre | : Particle board |
| ISBN | : |
| Author | : John J. Brenden |
| Publisher | : |
| Total Pages | : 15 |
| Release | : 1975 |
| Genre | : |
| ISBN | : |
In surveying the potential use of building materials, surface flammability and fire resistance of the assemblies, in the past, have been the principal fire performance characteristics considered. Now increased emphasis is being placed on the potential for smoke development of acceptable materials. This report is the third in a series of applications of a smoke chamber test method developed by the National Bureau of Standards (NBS). This report deals with applying the smoke chamber test method to plywood treated with various inorganic chemical salts. Some of the salts are used as components of commercially available fire-retardant treatments, whereas others are non-fire-retardant.
| Author | : |
| Publisher | : |
| Total Pages | : 330 |
| Release | : 1974 |
| Genre | : Combustion |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 954 |
| Release | : 1973 |
| Genre | : Government publications |
| ISBN | : |
| Author | : |
| Publisher | : |
| Total Pages | : 1014 |
| Release | : 1975 |
| Genre | : Government publications |
| ISBN | : |
| Author | : Richard A. Horn |
| Publisher | : |
| Total Pages | : 462 |
| Release | : 1974 |
| Genre | : Fibers |
| ISBN | : |
To achieve full utilization of each harvested tree, interest centers on use of all of the tree components. The objective of the study is to determine the influence of the morphological characteristics of pulp fiber from 12 western U.S. softwood species, representative of a wide range of fiber. The effect of the morphology of the wood pulp fiber as distinguished from that of the wood fiber is emphasized because differences in performance of fiber-based products are traced to the pulp fiber. Interrelationships of fiber morphology and pulp sheet properties are discussed. The results indicate that it is not possible to fully characterize the performance of a pulp by a single morphological characteristic and that the morphological characteristics significantly influence strength properties of sheets.
