1、Designation: E3082 17 An American National StandardStandard Test Methods forDetermining the Effectiveness of Fire Retardant Treatmentsfor Natural Christmas Trees1This standard is issued under the fixed designation E3082; the number immediately following the designation indicates the year oforiginal
2、adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This fire-test-response standard provides a two-steptesting process
3、for determining the effectiveness of surfaceapplied treatments for natural Christmas trees to improve firetest response.1.2 The purpose of these test methods is to:1.2.1 Utilize a detached branch test (Method 1) to screenpotential surface-applied fire retardant products and to deter-mine their effec
4、tiveness in limiting the spread of flame and thecontinuation of flaming by comparing the burning characteris-tics of treated and untreated small Christmas tree branchessubjected to a small open Bunsen-burner type flame ignitionsource, and1.2.2 Use whole natural Christmas trees (Method 2) todetermine
5、 the effectiveness of surface applied fire retardantsfound to be effective in the detached branch test (Method 1)through comparison of heat release rate contribution of treatedtrees as compared to untreated trees when subjected to an openflame ignition source.1.3 The values stated in inch-pound unit
6、s are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibi
7、lity of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.5 Fire testing is inherently hazardous. Adequate safe-guards for personnel and property shall be employed inconducting these tests.1.6 The
8、 text of this standard references notes and footnoteswhich provide explanatory material. These notes and footnotes(excluding those in tables and figures) shall not be consideredas requirements of the standard.1.7 This international standard was developed in accor-dance with internationally recognize
9、d principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2E176 Terminology of Fire
10、StandardsD1835 Specification for Liquefied Petroleum (LP) GasesD5025 Specification for Laboratory Burner Used for Small-Scale Burning Tests on Plastic MaterialsE2067 Practice for Full-Scale Oxygen Consumption Calo-rimetry Fire Tests2.2 California Regulations:3California Code of Regulations, Title 19
11、, Chapter 8, Article3 Registration and Labeling of Chemicals2.3 NFPA Standards:4NFPA 1 Fire CodeNFPA 289 Standard Method of Fire Test for Individual FuelPackages2.4 UL Standards:5UL 1975 Standard for Fire Tests for Foamed Plastics Usedfor Decorative PurposesUL 2358 Outline for Fire Tests of Pre-lit
12、Artificial SeasonalUse Tress and Other Seasonal Decorative Items2.5 Gas Processors Association Standard:6GPA 2140 Liquefied Petroleum Gas Specifications and TestMethod1These test methods are under the jurisdiction of ASTM Committee E05 on FireStandards and are the direct responsibility of Subcommitt
13、ee E05.15 on Furnishingsand Contents.Current edition approved July 1, 2017. Published August 2017. DOI: 10.1520/E3082-17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refe
14、r to the standards Document Summary page onthe ASTM website.3Available from State of California Department of Industrial Relations.4Available from National Fire Protection Association (NFPA), 1 BatterymarchPark, Quincy, MA 02169-7471, http:/www.nfpa.org.5Available from Underwriters Laboratories (UL)
15、, 2600 N.W. Lake Rd., Camas,WA 98607-8542, http:/.6Available from Gas Processors Association (GPA), 66 American Plaza, Suite700, Tulsa, OK 74135, http:/www.gpaglobal.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis internationa
16、l standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
17、129 3. Terminology3.1 DefinitionsFor definitions of terms used in these testmethods refer to Terminology E176.3.2 Definitions of Terms Specific to This Standard:3.2.1 distal endthe apex or tip of the tree branch.3.2.2 Christmas treesfor the purpose of this standard,anatural tree product intended to
18、be decorated or displayed in amanner associated with the Christmas, or other holiday seasonof the year.4. Significance and Use4.1 In past research experiments, some surface applied fireretardant chemicals improved the fire performance character-istics of natural Christmas trees, whereas other retard
19、ants werenot effective, or adversely affected tree quality or burningcharacteristics. These methods are intended to provide atwo-step process to determine the effectiveness of surfaceapplied treatments to natural Christmas trees.4.2 The fire performance of natural trees is highly variableand varies
20、from species to species. Test results from thesemethods do not intend to provide data for judgment on theabsolute fire performance of any natural or treated natural tree,but rather provide a means for comparing the fire performanceof treated versus untreated trees.4.3 These test methods do not take
21、into account the influ-ence of decorations that are added to the tree.4.4 For Test Method 1, only Fraser fir Abies fraseri (Pursh)Poi. trees are tested. Although this is one of the mostcommonly used Christmas trees in the United States, it ispossible that results for other tree species will differ f
22、rom theresults for this species.4.5 For Test Method 2, Large Scale Fire Test, it is importantthat the treated and untreated tree specimens be evaluatedconsistently and as simultaneously as possible for adequatecomparative results.4.6 The performance of the treatment will vary dependingon the uniform
23、ity of the application of the treatment. Thisquality of application is not determined by these test methods.Method 1 Small Scale Detached Branch Fire Tests5. Test Method5.1 Test SpecimensFor each test, specimen branches shallbe selected from five 8 to 15 ft (2.4 to 4.6 m) tall non-shearedFraser fir
24、Abies fraseri (Pursh) Poir. trees grown at a singlelocation, during November or December. Trees shall behealthy, with no visible pest or disease problems. Branchesshall have no cones nor evidence that cones were present. Nine2-year-old specimen branches, each 18 to 24 in. (457 to 610mm) long, and of
25、 similar diameter and foliage density, shall becut from the distal ends of branches in the upper half of eachtree specimen (Fig. 1). Bundle together branches from eachtree, labeled to indicate the tree (1 to 5) they were harvestedfrom, and place them ina4to5gal(15to19L)plastic bucketcontaining suffi
26、cient water to cover the bases of the branchesfor transport to the conditioning room.5.2 Assignment of Branches to Specific TreatmentsGiventhat moisture content is the single most important factorrelating to the flammability of conifer foliage, conduct thesmall scale branch fire test 1, 7, 14, and 2
27、1 days after treatmentof branches to ensure that potential fire retardants are effectiveover a range of moisture contents. Assign a single branch fromeach tree randomly to each of the 8 treatment groups (Table 1and 2). Place a small aluminum or paper tag on each branch,and label it with the assigned
28、 treatment codes. The use ofcolor-coded tags, one color for each burn test schedule numberwill make it easier to identify groups of branches that need tobe removed from the racks on any given testing date. Use the9th branch from each tree to determine the initial moisturecontent of the specimens upo
29、n arrival of the branches at theconditioning room.5.3 ConditioningAll specimen branches shall be stored inracks or hung from a wire in a lighted room maintained at68 6 5C (20 6 3C) and at a relative humidity of 45 6 5%(Fig. 2). Branches shall be spaced far enough apart so that theyare not touching e
30、ach other to promote uniform drying and tofacilitate making assessments of the effects of the fire retardantor needle retention and quality. (See Note 1).NOTE 1If cone containers are used, it is recommended that they bespaced further apart than in the photo in Fig. 2.FIG. 1 Example of Open-grown Tre
31、e with a Circled Typical 2-yr-old Distal Branch SpecimenTABLE 1 Fire Test ScheduleNumber of BranchesFire TestScheduleNumberDays ofConditioningafter TreatmentNon-treatedControl (NTC)Treated (T)1 1 day 5 52 7 days 5 53 14 days 5 54 21 days 5 5E3082 17229 5.4 Moisture ContentThe percent moisture conten
32、t (MC)of each branch shall be determined as described in 5.4.1 justprior to the fire test. Determine the moisture content ofspecimens from a single branch from each tree as soon asfeasible after arrival at the conditioning room to determine theinitial MC of the branches (See Fig. 3).5.4.1 Moisture c
33、ontent shall be determined by weighing acurrent-season shoot removed from each branch to the nearest0.1 g. Place each shoot in a labeled paper envelope, staple theenvelope closed, and dry all shoots for 3 days at 150 to 160F(65 to 71C). Determine the dry weight of each shoot byimmediately weighing t
34、he dried shoot after removal of theenvelope from the oven. The moisture content shall be calcu-lated as follows:MC 5 Masswet2 Massdry!Massdry! 3100 (1)where:Masswet= mass of the specimen before drying.Massdry= mass of the specimen after drying.5.5 Application of TreatmentThe treatment shall then bea
35、pplied to the 20 “T” labeled branch specimens prior to set upin the conditioning room. Use colored flagging to tag all of thebranches at the time of labeling in order to make it easier toidentify the branches to be treated. The treatment shall beapplied at the manufacturers application rate and in a
36、ccor-dance with the manufacturers application instructions. Fol-lowing treatment, all branches shall be stored in the condition-ing environment described in 5.2 until the fire test.5.6 BurnerA laboratory type burner having a tube with alength of 4 614 in. (102 6 6.4 mm) and an inside diameter of38 i
37、n. (9.5 mm). The barrel is not to be equipped with an end.The burner wing tip shall have a slit 2 in. (51 mm) in length by0.05 in. (1.3 mm) width, for the burner. The burner shall be incompliance with Specification D5025.5.7 Test ApparatusArrange the gas burner, box, racks,ruler, and test specimen u
38、nder a fume hood as shown in Fig. 4.5.8 Test Procedure:5.8.1 Prior to each fire test, note the condition of eachbranch to be tested (such as discoloration, accelerated needleloss, or the presence of stiff needles). If significant needle losshas occurred, the branch will no longer be suitable for use
39、 inthe fire test.5.8.2 Arrange the bas burner such that the tip of the burneris34 in. (19 mm) below the level of the sheet metal box, withthe air supply off, and gas adjusted to give a luminous flame1-112 in. (38-mm) long.5.8.3 Within 30 min of taking the specimens from theconditioning environment,
40、cuta6to8in.(152 to 203 mm)long current season shoot from the branch specimen (Fig. 4)and clip the specimen into the sliding rack so that the tip of thespecimen is touching the top surface of the sheet metal box.5.8.4 Slide the specimen to the test position over the flame.After a 12-s exposure, slide
41、 the specimen out of the flame.5.8.5 If the specimen is flaming, wait until it hasextinguished, then move the specimen against the ruler.5.9 Data Report:5.9.1 Report the following:5.9.1.1 Date and location of specimen collections.5.9.1.2 Approximate age of trees (in years/months).5.9.1.3 Labeling sy
42、stem (see example in Table 2).5.9.1.4 Temperature, relative humidity, and light level ofconditioning room.5.9.1.5 The condition of the branch prior to the flame test(note issues such as discoloration, accelerated needle loss, orstiff needles).5.9.1.6 Moisture content of each branch at the time oftes
43、ting (in %).5.9.1.7 Duration of flaming after removing from flame(after-flame, in seconds).5.9.1.8 If there was flame spread after removal of thespecimen from the flame and how far the flame spread (ininches).5.9.1.9 Total length of the test specimen (in inches).5.9.1.10 Flame spread length (in inch
44、es).5.9.1.11 A plot of the average moisture content versusaverage flaming time and average moisture content and aver-age percent of specimen flame spread from the test datacomparing treated and control specimens.5.9.1.12 A bar graph showing the number of “NTC” and“T” specimens that passed the fire t
45、ests (Section 6) at each testinterval.5.9.1.13 Photograph of specimen following the fire test.6. Conditions of Acceptance6.1 Specimens shall meet all of the criteria in 6.1 through6.6 in order to be considered to have passed the test.6.2 Specimens shall cease burning, without any additionalfire spre
46、ad when the specimen is removed from the flame.FIG. 2 Example of Branches Displayed in Cone ContainersFIG. 3 A 2-year-old Branch Specimen with Arrows Showing a Pairof Current-Season Shoots to be used for Moisture Content andFire TestsE3082 17329 6.3 Specimens shall cease spreading flame after the sp
47、eci-men is removed from the flame.6.4 Specimens shall spread flame not more than 1 in. (25mm) from the area in contact with the flame.6.5 Specimens shall have after-flaming that does not exceed10 s once the source of flame is removed.6.6 No treatment is permitted to induce obvious deteriora-tion in
48、quality (such as discoloration and accelerated needleloss) when compared to the NTC.Method 2 Large Scale Fire Tests7. Test Methods7.1 Test SpecimensFor each treatment to be evaluated,two sets of two natural Fraser fir Abies fraseri (Pursch) Poirtrees of the same tree age, and shape are to be cut and
49、 selectedfor tests. Each tree shall be approximately 6 to 7 ft (1.8 to 2.1m) tall.7.2 Conditioning and Treatment7.2.1 All tree are to be conditioned indoors at 70 6 5F(21 6 3C) and at a relative humidity of 50 6 5 %. The treesare to remain in the conditioning area for at least 2 weeks, andno more than 4 weeks, until ready to receive the fire retardanttreatment. During this pre-conditioning period, the trees shallbe well-watered (checked daily and water added as needed, butno less frequently than twice per week).7.2.2 F
