ASTM_E_1333_-_14.pdf

Designation:E133314Standard Test Method forDetermining Formaldehyde Concentrations in Air andEmission Rates from Wood Products Using a LargeChamber1This standard is issued under the fixed designation E1333;the number immediately following the designation indicates the year oforiginal 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 test method measures the formaldehyde concentra-tion in air and emission rate from wood products containingformaldehyde under conditions designed to simulate productuse(see 11.5 and Note 9).The concentration in air andemission rate is determined in a large chamber under specifictest conditions of temperature and relative humidity.Thegeneral procedures are also intended for testing product com-binations at product-loading ratios and at air-exchange ratestypical of the indoor environment(1).2The products tested,theloading ratios and the air exchange rates employed are de-scribed in the test report.1.2 This test method determines the average formaldehydeconcentration in air and emission rate from a number of largesize samples.The average concentration and emission ratereported,thus,will not provide information on higher or loweremitting panels in the test lot.1.3 This method is primarily used for testing newly manu-factured panel products that are shipped for testing eitherseal-wrapped in polyethylene or with waster sheets,or withboth.When this test method is used for evaluating other thannewly manufactured panel products(after original application,installation or use),the method of packaging and shipping theproduct for testing shall be described in the test report.1.4 The quantity of formaldehyde in the air sample takenfrom the chamber is determined by an adaptation of theNational Institute for Occupational Safety and Health(NIOSH)chromotropic acid test procedure.If another analytical proce-dure is used to determine the quantity of formaldehyde in theair sample,that procedure shall give results of equivalent orgreater accuracy and precision than the adapted chromotropicacid procedure.Detailed procedures based on acetylacetone,pararosaniline(seeTestMethodD5221),2,4-dinitrophenylhydrazine(DNPH)(see Test Method D5197)and3-methyl-2-benzothiazoline(MBTH)(see Test Method D5014)have been found to give results equivalent or greater inaccuracy and precision than chromotropic acid.The test reportshall note the analytical procedure employed.NOTE13The chromotropic acid analytical procedure described in thistest method is applicable for testing urea-formaldehyde bonded woodproducts.According to NIOSH(4th Edition,8/15/94),the low end of theworking range for the chromotropic acid analytical procedure is 0.02 ppm.A more sensitive analytical procedure is recommended for testing woodpanel products where formaldehyde concentrations in air are anticipated tobe at or below this level.DNPH is recognized as such a method.1.5 This test method is used to determine compliance withrequirements such as those established for building materialsby the U.S.Department of Housing and Urban Development(HUD)Rules and Regulations,HUD 24 CFR 3280,for manu-factured housing,by Minnesota Statutes Section 144.495 andCalifornia Air Resources Board(CARB),California Code ofRegulations sections 93120-93120.12,title 17,Airborne ToxicControl Measure to Reduce Formaldehyde Emissions fromComposite Wood Products.Measurement results are also usedfor comparing concentrations in air and emission rates fromdifferent wood products(2)and for determining compliancewith product standards.1.6 This test method is not designed for determining generalorganic emissions from all indoor materials and products.NOTE2ASTM Committee D22 has developed Guide D5116 whichdescribes small-scale environmental equipment and techniques suitablefor determining organic emissions and emission rates from materials andproducts used indoors.1.7 The values stated in SI units are to be regarded asstandard.The values given in parentheses are mathematicalconversions to inch-pound units that are provided for informa-tion only and are not considered standard.1.8 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is the1This test method is under the jurisdiction of ASTM Committee D07 on Woodand is the direct responsibility of Subcommittee D07.03 on Panel Products.Current edition approved Oct.1,2014.Published December 2014.Originallyapproved in 1990.Last previous edition approved in 2010 as E1333 10.DOI:10.1520/E1333-14.2The boldface numbers in parentheses refer to a list of references at the end ofthis standard.3The notes appearing in this test method are not part of the mandatory sectionsof this standard,are informative in nature,and appear below that section of thestandard to which they pertain.Copyright ASTM International,100 Barr Harbor Dri