Standards and Specifications in the Wood-using Industries: Nationally Recognized Standards and Specifications for Wood and Manufactures Thereof Including Paper and Paper Products ... October 5, 1927 ... |
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½ inch 12 feet 12 inches 15 per cent a+b+c a+b+c+d+ admit allowed American Lumber Standards American Railway Association bright sap bright sapwood cedar combinations of defects common boards common dimension considered a defect creosote creosote oil cubic foot cuttings Cypress dense select Douglas fir equivalent combinations equivalent defects exceed exceeding face side feet long finish flooring following defects foot foot lengths grading rules heartwood hemlock inch in diameter inch in width inch scant inches and wider inches in length Inches Inches inches long inches thick inches wide joist and plank knot holes less permitted piece piles pin wormholes Pine Manufacturers Association pith poles Pondosa sap stain seasoning checks shake shingles ship-lap Sitka spruce sizes sound and tight sound knots southern pine specifications splits spruce standard defects standard grades tight knots unsound variation in sawing wane western red cedar white fir wood yard lumber zinc chloride
Popular passages
Page 61 - The oil shall yield not more than 2 per cent coke residue. 8. The foregoing tests shall be made in accordance with the standard methods of the American Wood Preservers
Page 65 - ... per cent of the quantity specified. The amount of preservative retained shall be calculated on the basis of preservative at 100° F., from readings of working tank gauges, or scales, or from weights before and after treatment of loaded trams on suitable track scales, checked as may be desired by the purchaser's representative.
Page 277 - When lime in bulk is sold, charged for, or purported to be delivered as a definite number of large or small barrels, the tolerance to be allowed in excess or in deficiency on such amounts of lime shall be 15 pounds per 1,800 pounds (10 small barrels), or 25 pounds per 2,800 pounds (10 large barrels).
Page 63 - It shall not contain more than 0.5 per cent, of matter insoluble in benzol. 4. The specific gravity of the oil at 38° C., compared with water at 15.5° C., shall be not less than 1.03. 5. The distillate, based on water-free oil, shall be within the following limits : — Up to 210° C. not more than 5 per cent. Up to 235° C.
Page 24 - An intergrown knot is one whose rings of annual growth are completely intergrown with those of the surrounding wood.
Page 92 - Treatment should preferably be treated within three months from the time it is sawed. Green timber and seasoned timber shall not, however, be treated together in the same charge. The blocks shall be treated in an air-tight cylinder with the preservative specified by the purchaser. In all cases, whether thoroughly air-seasoned or green, they shall first be subjected to live steam at a temperature between 220...
Page 76 - It is the intent that classifications shall register performance during the period of exposure and shall not be construed as having determined suitability for use after fire exposure.
Page 232 - ... all as measured over the third, fourth, and fifth inches on a radial line from the pith. Wide-ringed material excluded by this rule will be acceptable, provided that the amount of summer wood...
Page 63 - It shall comply with the following requirements: 2. It shall not contain more than 3 per cent of water. 3. It shall not contain more than 2 per cent of matter insoluble in benzol.
Page 222 - In cases where timbers do not contain the pith and it is impossible to locate it with any degree of accuracy, the same inspection shall be made over 3...