ASTM E1333-22

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E1333 − 14 E1333 − 22
Standard Test Method for
Determining Formaldehyde Concentrations in Air and
Emission Rates from Wood Products Using a Large
Chamber
This standard is issued under the fixed designation E1333; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This test method measures the formaldehyde concentration in air and emission rate from wood products containing
formaldehyde under conditions designed to simulate product use (see 11.5 and Note 9). The concentration in air and emission rate
is determined in a large chamber under specific test conditions of temperature and relative humidity. The general procedures are
also intended for testing product combinations at product-loading ratios and at air-exchange rates typical of the indoor environment
(1). The products tested, the loading ratios and the air exchange rates employed are described in the test report.
1.2 This test method determines the average formaldehyde concentration in air and emission rate from a number of large size
samples. The average concentration and emission rate reported, thus, will not provide information on higher or lower emitting
panels in the test lot.
1.3 This method is primarily used for testing newly manufactured panel products that are shipped for testing either seal-wrapped
in polyethylene or with waster sheets, or with both. When this test method is used for evaluating other than newly manufactured
panel products (after original application, installation or use), the method of packaging and shipping the product for testing shall
be described in the test report.
1.4 The quantity of formaldehyde in the air sample taken from the chamber is determined by an adaptation of the National Institute
for Occupational Safety and Health (NIOSH) chromotropic acid test procedure. If another analytical procedure is used to determine
the quantity of formaldehyde in the air sample, that procedure shall give results of equivalent or greater accuracy and precision
than the adapted chromotropic acid procedure. Detailed procedures based on acetylacetone, pararosaniline (see Test Method
D5221), 2,4-dinitrophenylhydrazine (DNPH) (see Test Method D5197) and 3-methyl-2-benzothiazoline (MBTH) (see Test Method
D5014) have been found to give results equivalent or greater in accuracy and precision than chromotropic acid. The test report shall
note the analytical procedure employed.
NOTE 1— The chromotropic acid analytical procedure described in this test method is applicable for testing urea-formaldehyde bonded wood products.
According to NIOSH (4th Edition, 8/15/94), the low end of the working range for the chromotropic acid analytical procedure is 0.02 ppm. A more
sensitive analytical procedure is recommended for testing wood panel products where formaldehyde concentrations in air are anticipated to be at or below
this level. DNPH is recognized as such a method.
This test method is under the jurisdiction of ASTM Committee D07 on Wood and is the direct responsibility of Subcommittee D07.03 on Panel Products.
Current edition approved Oct. 1, 2014Aug. 1, 2022. Published December 2014September 2022. Originally approved in 1990. Last previous edition approved in 20102014
as E1333 – 10.E1333 – 14. DOI: 10.1520/E1333-14.10.1520/E1333-22.
The boldface numbers in parentheses refer to a list of references at the end of this standard.
The notes appearing in this test method are not part of the mandatory sections of this standard, are informative in nature, and appear below that section of the standard
to which they pertain.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
E1333 − 22
1.5 This test method is used to determine compliance with requirements such as those established for building materials by the
U.S. Department of Housing and Urban Development (HUD) Rules and Regulations, HUD 24 CFR 3280, for manufactured
housing, by Minnesota Statutes Section 144.495 Minnesota Statutes Section 144.495, Environmental Protection Agency Formal-
dehyde Emission Standards for Composite Wood Products, EPA TSCA Title VI 40 CFR Section 770, and California Air Resources
Board (CARB), California Code of Regulations sections 93120-93120.12, title 17, Airborne Toxic Control Measure to Reduce
Formaldehyde Emissions from Composite Wood Products. Measurement results are also used for comparing concentrations in air
and emission rates from different wood products (2) and for determining compliance with product standards.
1.6 This test method is not designed for determining general organic emissions from all indoor materials and products.
NOTE 2—ASTM Committee D22 has developed Guide D5116 which describes small-scale environmental equipment and techniques suitable for
determining organic emissions and emission rates from materials and products used indoors.
1.7 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to
inch-pound units that are provided for information only and are not considered standard.
1.8 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. For specific hazard statements, see Section 7.
1.9 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2.1 ASTM Standards:
D3195 Practice for Rotameter Calibration
D5014 Test Method for Measurement of Formaldehyde in Indoor Air (Passive Sampler Methodology) (Withdrawn 2006)
D5116 Guide for Small-Scale Environmental Chamber Determinations of Organic Emissions from Indoor Materials/Products
D5197 Test Method for Determination of Formaldehyde and Other Carbonyl Compounds in Air (Active Sampler Methodology)
D5221 Test Method for Continuous Measurement of Formaldehyde in Air (Withdrawn 1997)
E77 Test Method for Inspection and Verification of Thermometers
E220 Test Method for Calibration of Thermocouples By Comparison Techniques
E337 Test Method for Measuring Humidity with a Psychrometer (the Measurement of Wet- and Dry-Bulb Temperatures)
E741 Test Method for Determining Air Change in a Single Zone by Means of a Tracer Gas Dilution
2.2 HUD Document:
HUD 24 CFR 3280 Manufactured Home Construction and Safety Standards, 24, CFR 3280, Federal Register, Vol 49, No. 155,
August 8, 1984
2.3 NIOSH Document:
NIOSH Manual of Analytical Methods, Method No. 3500, Fourth Edition, 1994
2.4 ANSI Standards:
ANSI/HPVA HP-1-09HP-1 Hardwood and Decorative Plywood
ANSI A208.1–2009ANSI A208.1 Particleboard
ANSI A208.2–2009ANSI A208.2 Medium Density Fiberboard (MDF) for Interior Applications
2.5 Other Documents:
Minnesota Statutes Section 144.495 325F.18 and 325F.181, Formaldehyde Gases in Building Materials, 1986
California Air Resources Board (CARB) California Code of Regulations sections 93120-93120.12, title 17, Airborne Toxic
Control Measure to Reduce Formaldehyde Emissions from Composite Wood Products
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
The last approved version of this historical standard is referenced on www.astm.org.
Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
www.access.gpo.gov.
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
Available from Print Communications, Dept. of Administration, 117 University Ave., St. Paul, MN 55155.
Available from California EPA website: http://www.arb.ca.gov/toxics/compwood/compwood.htm.
E1333 − 22
EPA TSCA Title VI 40 CFR Section 770 Formaldehyde Standards for Composite Wood Products
Available from United States Environmental Protection Agency (EPA), William Jefferson Clinton Bldg., 1200 Pennsylvania Ave., NW, Washington, DC 20460,
http://www.epa.gov.
E1333 − 22
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 air change rate—the ratio of hourly conditioned and filtered outside air brought into the chamber, and chamber volume
measured in identical volume units (normally expressed in air changes per hour, AC/h).
3.1.2 emission rate—formaldehyde emissions per area of exposed surface of tested product in the large chamber per time duration
of air sample, normally expressed in mg/(m ·h).
3.1.3 loading ratio—the total exposed surface area (not including panel edges) of each product divided by the test chamber
volume.
4. Significance and Summary of Test Method
4.1 Significance and Use:
4.1.1 Limitations on formaldehyde concentrations in air have been established for some building products permanently installed
in manufactured and conventional homes. This test method provides a standard means of testing typical product sizes, such as
1.21.2 m by 2.4 m (4(4 ft by 8 ft) sheets, at product loadings consistent with product end use.
4.2 Summary of Test Method:
3 3
4.2.1 This test method incorporates a chamber of 22 m (800 ft ) minimum size to evaluate formaldehyde concentrations in air and
emission rates from building products over a specified duration of time. This test method employs a single set of environmental
conditions but different product loading ratios to assess formaldehyde concentrations in air and emission rates from certain wood
products. Conditions controlled in the procedure are as follows:
4.2.1.1 Conditioning of specimens prior to testing,
4.2.1.2 Exposed surface area of the specimens in the test chamber,
4.2.1.3 Test chamber temperature and relative humidity,
4.2.1.4 Number of air changes per hour, and
4.2.1.5 Air circulation within the chamber.
4.2.1.6 At the end of a 16 to 20-h period in the test chamber, the air is sampled and the concentration of formaldehyde in air and
emission rate are determined.
NOTE 3—Care must be exercised in the extension of the results to formaldehyde concentrations in air and emission rates from products under different
conditions of air change rate or loading ratio, or both.
5. Interferences
5.1 The NIOSH analytical method lists phenols as a negative interference when present at an 8:1 excess over formaldehyde.
Modification in the analytical procedure shall be made when relatively high phenol formaldehyde concentrations (8:1) are
anticipated (3, 4).
6. Apparatus
6.1 Test Chamber:
3 3
6.1.1 The interior volume of the chamber shall be a minimum of 22 m (800 ft ). The interior of the test chamber shall be free
of refrigeration coils that condense water and items such as humidifiers with water reservoirs as condensate will have the potential
of collecting formaldehyde and thus influencing test results. The interior surfaces of the chamber shall be of materials found to
minimize adsorption. (Stainless steel, aluminum, and polytetrafluoroethylene (PTFE) have produced recoveries of ≥95 % at a
E1333 − 22
0.4 ppm formaldehyde challenge concentration in air and have been found appropriate as chamber lining materials.) All joints
except for doors used for loading and unloading specimens shall be sealed. Doors shall be self-sealing. The test chamber shall be
equipped with metal specimen racks with dividers spaced a minimum of 150 mm (6 in.) to support specimens on edge.
6.1.2 Make-Up Air:
6.1.2.1 The make-up air shall come from a filtered dust-free environment and contain not more than 0.02 ppm of formaldehyde
using the sampling rate and volume of air as described in 10.2. This shall be accomplished by passing make-up air through a filter
bed of activated carbon, activated alumina impregnated with potassium permanganate, or other materials capable of absorbing,
adsorbing, or oxidizing formaldehyde.
6.1.2.2 Make-up air for the chamber must pass through a calibrated, totalizing dry gas test meter or other airflow rate measuring
device permanently placed in the chamber air intake duct with calibration traceable to the National Institute of Standards and
Technology (NIST). It is also acceptable to calibrate the airflow rate measuring device, as installed, using a tracer gas technique
described in Test Method E741. Air change rate per hour (AC/h) is calculated as (V − V ) ÷ ((t − 0) × chamber volume); where
2 1
V and V are dry-gas test-meter readings in cubic metres at time, t (in hours), and time 0 divided by the chamber volume in cubic
2 1
metres. The air-intake port and exhaust port shall be on different walls of the chamber and at different elevations. The chamber
test shall be operated at a positive pressure of 1 Pa (0.004 in. of water) or greater as determined by a permanently mounted
differential pressure device.
6.1.3 Nonsparking Fan Sizing and Positioning—A nonsparking fan shall be used to circulate air within the chamber. The air flow
shall be directed horizontally in the direction of the chamber length above where the test samples are to be placed in the chamber.
The fan shall be sized and positioned to achieve a uniform concentration in air of formaldehyde (within 0.02 ppm) as determined
from a minimum of six air sampling locations. These locations shall be at three elevations, 0.3 m (12 in.) from the chamber floor
and ceiling, and at a height between 1.31.3 m and 1.5 m (51(51 in. and 59 in.); and at two vertical placements, one-third the
chamber length from each end of the chamber and at chamber mid-width.
6.1.4 Air Sampling Ports—For testing, at least two air-sampling ports shall be used, located at equal distance along the chamber
length at an elevation between 1.31.3 m and 1.5 m (51(51 in. and 59 in.) and shall be placed at least 0.6 m (24 in.) from any interior
wall. The sampling lines shall be of materials found to minimize adsorption such as stainless steel, PTFE and aluminum, securely
fixed to supports during the test, and shall be as short as possible. The length of the sampling line outside the chamber shall not
exceed 6 m (20 ft).
6.2 Examples of acceptable reagents, materials, and equipment are provided in Appendix X1.
7. Hazards
7.1 Chromotropic Acid Reagent Treatment (see 10.3.4 and A4.5)—During this hazardous operation, the operator shall wear rubber
gloves, apron, and a full face mask or be protected from splashing by a transparent shield such as a hood window. The solution
becomes extremely hot during addition of sulfuric acid. Add acid slowly to avoid loss of sample due to splattering.
7.2 Cleaning Chemicals for Glassware—Appropriate precautions shall be taken if cleaning chemicals are considered to be
hazardous.
8. Test Specimens
8.1 Standard Face and Back Configuration Testing:
8.1.1 Loading ratio is defined as the total exposed specimen surface area, exclusive of edge area, divided by the chamber volume
(on effect of loading refer to Ref (5)). If the edge exposure is greater than 5 % of the surface area, include the total edge-exposure
area in the calculation of surface-exposure area. Loading ratios used for testing wood panel products containing formaldehyde are
as follows:
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Loading Ratios, ±2 %
2 3 2 3
(m /m ) (ft /ft ) Product
0.95 0.29 Hardwood Plywood Wall Paneling
0.43 0.13 Particleboard Flooring Materials
Industrial Particleboard Panels
Industrial Hardwood Plywood Panels
0.26 0.08 Medium Density Fiberboard (MDF)
0.13 0.04 Low Density Particleboard Door Core Grade
NOTE 4—Panel grades are defined in the ANSI standards referenced in 2.4.
NOTE 5—See Appendix X3 for a discussion of loading ratios.
8.2 Non-Standard Sample Configuration Testing:
8.2.1 Testing Products with Single Surface Exposed—Some products have significantly different formaldehyde release charac-
teristics for each surface and have only one surface exposed to the indoor living space. In those cases, panels shall be tested
back-to-back with edges taped together. The panels shall be identified as tested in the back-to-back mode.
8.2.2 Testing Cabinets and Furniture—Some products are made of assembled wood panel products. Such items shall be designated
in the test report by the product name and a description of the cabinet or furniture items. (See Appendix X4 for a discussion of
shipment of such products for testing.)
8.2.3 Combination Testing—Where different products are tested in combination, the test report shall fully describe the purpose of
the test and the nature of the products and must note the loading ratios for each of the products tested.
NOTE 6—HUD 24 CFR 3280 does not indicate that panels are tested back-to-back (see 8.2.1) or that different products are tested in combination. This
test method, however, provides an option of performing tests on components or assembled panels in the back-to-back mode or testing products in
combination where appropriate to simulate use in certain structures.
9. Sample Material Shipping and Specimen Conditioning
9.1 Shipping—Materials selected for testing shall be shipped from the manufacturer, distributor or building site to the laboratory
in bundles, seal-wrapped in minimum 0.15-mm (6-mil) 0.15 mm (6 mil) thickness polyethylene plastic, orand shipped with a top
and bottom waster sheet taken from the same population of the sample, or both. sample. Materials selected for testing shall not
include the top or bottom panels or pieces in a stack, unit or pallet. All material shall be held intact prior to specimen conditioning.
When other than newly manufactured wood products (after original application, installation or use) are tested, the method of
packaging and shipping the product for testing shall be fully described. Information known on the age and product history of other
than newly manufactured products shall be detailed in the test report.
NOTE 7—See Appendix X4 for additional discussion on shipping materials for testing.
9.2 Conditioning—Condition test specimens with a minimum distance of 0.15 m (6 in.) between each specimen for seven days
63 h at conditions of 24 6 3°C (75 6 5°F)24 °C 6 3 °C (75 °F 6 5 °F) and 50 6 5 % relative humidity. The formaldehyde
concentration in the air within 0.3 m (12 in.) of where specimens are conditioned shall not be more than the lesser of 0.10 ppm
or the applicable compliance limit when testing for compliance purposes, during the conditioning period as determined by taking
air samples in the conditioning area. (See Note 8.) Circulation of the conditioning air shall be achieved by fans that direct air flow
horizontally in the direction parallel to the primary surface of the test specimens.
NOTE 8—Test specimens with low levels of formaldehyde may absorb formaldehyde from the air when the air formaldehyde content exceeds that of the
test specimen. Consideration should be taken to avoid such air conditions during storage and conditioning. and when conditioning specimens with
different emission characteristics.
10. Procedure
10.1 Test Procedure for Materials:
Examples of products exhibiting this characteristic are interior wall and ceiling finish building materials that contain decorative liquid applied finishes that may emit
significant quantities of formaldehyde, and laminates not containing emitable formaldehyde from the exposed surfaces that are bonded to a substrate that prevents or
significantly restricts emissions from the unexposed back surface of the laminates.
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10.1.1 Purge the chamber by running empty or with the use of filters designed to reduce the formaldehyde background
concentration in air, or both. The formaldehyde background concentration in air of the empty operating chamber shall not contain
more formaldehyde than is capable of being measured considering the sensitivity of the analytical procedure and the volume of
the air samples taken (see 10.2). Clean chamber surfaces periodically with water or solvent to ensure that formaldehyde
background concentrations remain at or below the sensitivity of the analytical procedure used.
10.1.2 Locate the specimens in the chamber so that the air stream of the circulating fan is not blocked by any specimen.
10.1.3 Operate the chamber at 25 6 1°C (77 6 2°F)25 °C 6 1 °C (77 °F 6 2 °F) and 50 6 4 % relative humidity (refer to Test
Methods E77, E220, and E337). Continuously record the temperature and humidity. Conduct the chamber test at
0.5 6 0.05 AC0.5 AC ⁄h 6 0.05 AC ⁄h.
10.1.4 Specimens remain in the operating chamber from 16 to 20 h prior to air sampling for formaldehyde concentration in air
and emission rate determinations.
10.2 Air Sampling—Purge air sampling lines for 5 min. Take at least two simultaneous air samples. At each sampling station,
bubble air through a single impinger containing 20 mL of a 1 % sodium bisulfite (NaHSO ) solution. A filter trap shall be placed
between the impinger and the flowmeter. Set a calibrated flowmeter (calibrated using the equipment listed in X1.1.7) to maintain
an average airflow of 1 6 0.05 L1 L ⁄min 6 0.05 L ⁄min for a minimum of 60 min with time measured accurately to within 5 s.
Following air sampling, analyze the collection solution. Formaldehyde concentrations from simultaneous air samples taken from
the two lines shall not vary by more than 0.02 ppm. If the samples differ by more than 0.02 ppm, repeat 10.2.
10.3 Analysis of Air Samples:
10.3.1 Pipet 4 mL of the NaHSO solution from the impingers into each of two 1616 mm by 150 mm screwcap test tubes for
duplicate analysis of each impinger sample.
10.3.2 Pipet 4 mL of 1 % NaHSO into a 16- by 150-mm screwcap test tube to act as a reagent blank.
10.3.3 Add 0.1 mL of 1 % chromotropic acid reagent to each test tube. Shake tube after addition.
10.3.4 Slowly and carefully pipet 6.0 mL concentrated sulfuric acid into each test tube (Warning—see 7.1) and allow to flow
down the side of test tube. Allow the volumetric pipet to drain. DO NOT BLOW OUT. Before placing caps on test tubes, check
the condition of the PTFE cap liners to make sure they are clean and not deteriorated.)
10.3.5 Slowly and gently agitate test tubes to effect mixing. Mixing is complete when there is no sign of stratification.
(Warning—Avoid rapid mixing as heating and pressure will increase and potentially break the test tube.)
10.3.6 If absorbance readings exceed 1.0 or if spectrophotometric analysis is performed within 2 h, heat capped test tubes to
95°C95 °C or place capped test tubes in a boiling water bath for 15 6 2 min15 min 6 2 min to ensure that the chemical reaction
is completed. After removal, allow the test tubes to cool to room temperature. Carefully vent test tubes to release pressure.
10.4 Absorbance Readings:
10.4.1 Standardize the spectrophotometer using distilled water at 580 nm in accordance with the instrument’s operating
instructions. The reagent blank (Tube 1) shall be read against distilled water. A high absorbance for the reagent blank indicates
contamination of reagent blank or improper solution preparation. If absorbance for the reagent blank compared to distilled water
is greater than 0.040 (using a 12-mm 12 mm cell path length) or above 0.030 (using a 10-mm 10 mm cell path length), repeat the
entire standardization procedure.
10.4.2 Zero the instrument using the reagent blank, or the instrument shall be left zeroed on distilled water, and the absorbance
of the reagent blank subtracted from the absorbance of the standard solutions.
10.4.3 Read and record absorbance at 580 nm for each test tube prepared (see 11.2 for calculations). If the absorbance of the
specimen solution is found to fall outside the absorbance range (>1.0 or as determined in Annex A4), 10.3.1 – 10.3.4 shall be
repeated using an appropriate dilution of each impinger solution.
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11. Calculation
11.1 Convert the volume of air sampled to the volume of air at standard conditions as follows:
V 3P 3298
V 5 (1)
s
101 3 T1273
~ !
where:
V = volume of air at standard conditions (101 kPa and 298 K), L,
s
V = volume of air sampled, L,
P = barometric pressure, kPa, and
T = temperature of sample air, °C.
11.2 Calculate total micrograms of formaldehyde collected in each impinger sample as follows:
C 5 C 3F (2)
t a a
where:
C = total formaldehyde in the sample, μg,
t
C = total quantity of formaldehyde in the sample aliquots taken from the impinger (as determined from the calibration curve
a
in Annex A4), μg, and
sampling solution volume, mL
F 5 aliquot factor 5 (3)
a
aliquot used, mL
11.2.1 Calculate the concentration in air of formaldehyde in the large chamber as follows:
C 324.47
t
C 5 (4)
L
V 330.03
s
where:
C = parts of formaldehyde per million parts air, ppm,
L
30.03 = molecular weight of formaldehyde, and
24.47 = μL of formaldehyde gas in 1 μmol at 101 kPa and 298 K.
Round calculated formaldehyde concentrations in air to the nearest 0.01 ppm. Round up to the nearest 0.01 ppm all residual
values at or in excess of 0.005 ppm (any value or only zeros following the 0.005). Round down all residual values below 0.005
to the nearest 0.01 ppm.
11.3 When the chamber temperature differs from 2525 °C by 0.3°C (770.3 °C (77 °F by 0.5°F)0.5 °F) or more, adjust the
large-chamber formaldehyde concentrations in air obtained to a standard temperature of 25°C (77°F)25 °C (77 °F) using the
formula developed by Berge, et al. (6).Annex A1 contains a table of conversion factors for use at different observed test
temperatures as calculated using this formula. The observed test temperature is the average temperature for the total period of
30 min prior to air sampling plus the time of air sampling.
11.4 The large chamber formaldehyde concentration in air shall be adjusted to a concentration at 50 % relative humidity when the
difference in relative humidity from 50 % is greater than or equal to 1 % (see Annex A2).
11.5 The emission rate (ER) shall be calculated from the formaldehyde concentration in air observed in the large chamber at
steady-state conditions. The formaldehyde ER shall be calculated as follows:
ER 5 1.23 C 3N/L 5 mg/ m ·h (5)
~ !
s
where:
ER = formaldehyde emissions per unit area and unit time, mg/(m ·h),
C = formaldehyde concentration in air at steady state conditions, ppm,
s
N = ventilation rate, air changes per hour, (AC/h), and,
2 3
L = loading rate, m /m .
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NOTE 9—Concentration in air and emission rate are only relevant to the specific test air exchange rate and test loading ratio used. Concentration in air
and emission rate do not change in direct proportion with changes in air exchange rates or loading ratios. Estimates of formaldehyde exposures in
structures can be made by using mathematical models (7). Concentration in air or emission rate profile information from large chamber tests can be used
as mathematical model inputs. This data is not normally obtained in Test Method E1333 unless testing is extended and chamber concentrations in air and
emission rates are obtained for the tested product at multiple chamber air exchange rates or multiple product loading ratios, or both.
12. Report
12.1 Report the Following Information:
12.1.1 Test number,
12.1.2 Title of report Report shall state if standard face and back configuration testing (see 8.1) or if nonstandard configuration
testing (see 8.2) was performed.
12.1.3 The manner in which materials were shipped or stored, or both; wrapped separately in vapor retarder, wrapped collectively
in vapor retarder; waster sheet on top and bottom; or in original box or container. If materials were shipped unwrapped, with no
top or bottom waster sheets, or not in the original box or container, it shall be noted on the test report. For other than newly
manufactured products, the age and product history, if known, shall be described in the test report.
12.1.4 Name of product manufacturer or name of company submitting material, or both, and date of manufacture.
12.1.5 Description of test material or product to include generic product name, thickness, size, if surface finished or sealed (both
surfaces shall be described), and special treatment (if known).
12.1.6 The nature of machining, if the test material is grooved, routed, bored or otherwise machined results in increased emitting
area of the test material.
12.1.7 Specimen conditioning details to include temperature (and range), relative humidity (and range), time to nearest hour,
approximate distance between specimens, and the air circulation conditions (for example, air velocity or air exchange rate).
12.1.8 Formaldehyde background concentration in air in room or area where specimens are conditioned (see 9.2).
12.1.9 Chamber volume; nominal length, width, and height.
12.1.10 Test material or product loading ratio in chamber.
12.1.11 Description of specimens as loaded into chamber including number of specimens in charge and number of surfaces
exposed.
12.1.12 Average temperature during the conduct of the test (see 10.1.3) and temperature range during sampling period.
12.1.13 Chamber formaldehyde concentration in air at test conditions, chamber formaldehyde concentration in air corrected to
25°C (77°F),25 °C (77 °F), 50 % relative humidity, rounded to nearest 0.01 ppm.
12.1.14 Formaldehyde emission rate at 25°C (77°F),25 °C (77 °F), 50 % relative humidity, rounded to the nearest 0.001
mg/(m ·h).
12.1.15 Relative humidity average and range during sampling period and if chamber values have been corrected to 50 % relativ
...