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Standard Test Method for Evaluating the Effects of Fire-Retardant Treatments and Elevated Temperatures on Strength Properties of Fire-Retardant Treated Lumber
Automaticky přeložený název:
Standardní zkušební metoda pro posouzení účinků protipožárních ošetření a zvýšených teplot na pevnostní vlastnosti protipožárních Ošetřené Lumber
NORMA vydána dne 1.6.2010
Označení normy: ASTM D5664-10
Poznámka: NEPLATNÁ
Datum vydání normy: 1.6.2010
Kód zboží: NS-32092
Počet stran: 6
Přibližná hmotnost: 18 g (0.04 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Ohnivzdornost stavebních materiálů a prvků
Dřevo. Kulatina na řezivo. Řezivo
Keywords:
fire retardant, fire-retardant treated, lumber, mechanical properties, strength effects, temperature, thermal effects, treatment, Fire-retardant-treated wood/wood-base materials, Lumber, Mechanical properties, Strength--wood materials/applications, Temperature tests--building materials, Thermal analysis (TA)--building materials, ICS Number Code 13.220.50 (Fire-resistance of building materials and elements), 79.040 (Wood, sawlogs and sawn timber)
Significance and Use | ||||||||||||||||||||
The mechanical properties evaluated by this test method provide the following: Data for use in developing modification factors for the allowable design properties of fire-retardant treated lumber when used at or near room temperatures (see 6.3). Data for use in developing modification factors for allowable design properties of fire-retardant treated lumber when exposed to elevated temperatures and humidity (see 6.4). Data (optional) for use in modifying these factors for size effects when fire-retardant treated lumber is used at or near room temperature and when exposed to elevated temperatures and humidity (see 6.5). Data from the first two procedures in this test method of evaluation are indicative only for that species. Note 1—The results of the three listed species (Southern pine, Douglas fir, and either white spruce or a Spruce/Fir mixture) may be used together to make inference on untested wood species because the three tested species represent the full spectrum of expected treatability. Data from the optional third part of this three-part method of evaluation are indicative for all species because it is primarily used to assess size effects. |
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1. Scope | ||||||||||||||||||||
1.1 This test method covers procedures for obtaining data to assess the initial adjustments to allowable design stresses for lumber treated with candidate commercial fire-retardant (FR) formulations and further procedures for obtaining data to assess the effect of extended exposure to elevated temperature of 66 ± 2°C (150 ± 4°F). 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||||||||||||||||||||
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