DLA MM-L-736 D-2008 LUMBER HARDWOOD.pdf
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1、 INCH-POUND MM-L-736D 6 MAY 2008 SUPERSEDING MM-L-736C March 9, 1973 FEDERAL SPECIFICATION LUMBER; HARDWOOD The General Services Administration has authorized the use of this federal specification by all federal agencies. 1. SCOPE AND CLASSIFICATION 1.1 Scope. This specification covers commercial sp
2、ecies and grades of hardwood lumber commercially harvested and manufactured in the continental United States. 1.2 Classification. Hardwood lumber shall be of the following types, as specified (see 6.2): Type I - Standard hardwood cutting grades Type II - Hardwood construction lumber including boards
3、, dimension, and timbers Type III - Hardwood flooring 2. APPLICABLE DOCUMENTS 2.1 Government publications. The issues of the following documents, in effect on the date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein. Military Specifica
4、tions MIL-L-14362 Lumber: Unitizing and loading of MIL-L-19140 Lumber and Plywood, Fire-Retardant treated (Copies of these documents are available online at http:/assist.daps.dla.mil or from the Standardization Document Order Desk, 700 Robins Avenue, Building 4D, Philadelphia, PA 19111-5094.) Commen
5、ts, suggestions, or questions on this document should be addressed to: Defense Supply Center Philadelphia, ATTN: DSCP-NASA, 700 Robbins Ave., Philadelphia, PA 19111-5096 or email to dscpg however, such trimming shall permit trimming to nominal length. 3.3 Unless otherwise specified (see 6.2), the de
6、gree of seasoning shall conform to the following requirements. Lumber not required to be seasoned shall be designated, “Any stage of seasoning”. Moisture content of lumber shall be determined as specified in 4.3.4. 3.3.1 Type I and NHLA “A” and “B” finish grades of type II lumber. No piece of lumber
7、 8/4 inches or less in thickness shall have a moisture content exceeding 12 percent. The moisture content of limber over 8/4 inches in thickness shall be specified (see 6.2). The lumber shall be graded and measured under NHLA “Standard Kiln Dried Rule” with inspection after surfacing when surfacing
8、is required (see 3.5). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MM-L-736D 43.3.2 Type II lumber, excluding “A” and “B” finish grades. Unless otherwise specified (see 6.2), lumber shall conform to the following average moisture content requirem
9、ents, with no piece to exceed the average moisture content by more than 3 percent. THICKNESS AVERAGE MOISTURE CONTENT 4/4” and thinner 19 percent or less 5/4” 22 percent or less 6/4” 24 percent or less 7/4” and 8/4” 27 percent or less Over 8/4” As specified (see 6.2) When lumber intended for use as
10、framing members is specified (see 6.2) the moisture content shall not exceed 19 percent. 3.3.3 Type III. The moisture content of hardwood flooring shall be not more than 9 percent, except that 5 percent of any quantity submitted for delivery may have a moisture content of not more than 12 percent. 3
11、.4 End coating. When green or unseasoned lumber is specified, lumber 4 inches and thicker shall be end coated with two coats of ready-mixed paint conforming to SSPC-Paint 25 or with any suitable commercial end coating equally effective when compared with approved coating in reducing end checking and
12、 splitting. 3.5 Surfacing. Lumber shall be rough, dressed or run to pattern, as specified (see 6.2 and 6.4). 3.6 Treatment. 3.6.1 Preservative treatment. When specified (see 6.2), lumber shall be preservative treated and the preservative to be used shall conform to the following specifications: AWPA
13、 P1/P13, AWPA P2, AWPA P3, AWPA P5, AWPA P8, or AWPA P9. 3.6.2 Fire retardant treatment. When specified (see 6.2), lumber shall be fire retardant treated in accordance with MIL-L-19140. 3.6.3 Anti-strain treatment. When specified (see 6.2), all hard-wood lumber which is subject to staining (see 6.5)
14、 shall be anti-stain treated. The treating solution shall be waterbased with the composition, concentration and application as specified by the chemical supplier. 3.7 Grade certification. Hardwood lumber of like grade, size and species shall be certified for grade by a certificate of inspection. Unl
15、ess otherwise specified (see 6.2), certificates for type I and II lumber shall be issued by a National Inspector of the National Hardwood Lumber Association and certificates for type III lumber shall be issued by the supplier. 3.8 Marking. Unless otherwise specified (see 6.2), each piece of type I a
16、nd II lumber, graded and certified as specified in 3.7, shall be hammer branded by a National Inspector of the National Hardwood Lumber Association. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MM-L-736D 54. QUALITY ASSURANCE PROVISIONS 4.1 Respon
17、sibility for inspection. Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or order, the supplier may use his own or any other facilities suit
18、able for the performance of the inspection requirements specified herein, unless disapproved by the Government. The government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure that supplies and services conform
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