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F1249-90(1995) Standard Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor

ASTM
1995
American Society for Testing and Materials, Philadelphia, Pa
Diffusion cell apparatus; Flexible barrier materials; Infrared (IR) analysis; Plastic sheet and film; Polymers; Referee methods; Water vapor transmission

ASTM, (1995), F1249-90(1995) Standard Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor, American Society for Testing and Materials, Philadelphia, Pa.
Abstract:
1. Scope

1.1 This test method covers a procedure for determining the rate of water vapor transmission through flexible barrier materials. The method is applicable to sheets and films up to 3 mm (0.1 in.) in thickness, consisting of single or multilayer synthetic or natural polymers and foils, including coated materials. It provides for the determination of ( ) water vapor transmission rate (WVTR), ( ) the permeance of the film to water vapor, and ( ) for homogeneous materials, water vapor permeability coefficient.

Note 1-Values for water vapor permeance and water vapor permeability must be used with caution. The inverse relationship of WVTR to thickness and the direct relationship of WVTR to the partial pressure differential of water vapor may not always apply.

1.2 This standard does not purport to address all of the safety problems, 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.

2. Referenced Documents

D374 Test Methods for Thickness of Solid Electrical Insulation

D4204 Practice for Preparing Plastic Film Specimens for a Round-Robin Study

E104 Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions

E96 Test Methods for Water Vapor Transmission of Materials

D 1898 Practice for Sampling of Plastics

Index Terms

Diffusion cell apparatus; Flexible barrier materials; Infrared (IR) analysis; Plastic sheet and film; Polymers; Referee methods; Water vapor transmission (WVT)-permeability; water vapor transmission rate through plastic film/sheeting (up to 3 mm; (0.1 in.)), using modulated infrared sensor, test
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Related Concepts

Author Information and Other Publications Notes
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  3. C1060-90(1997)e1 Standard Practice for Thermographic Inspection of Insulation Installations in Envelope Cavities of Frame Buildings
  4. C1134-90(2001) Standard Test Method for Water Retention of Rigid Thermal Insulations Following Partial Immersion
  5. C1155-95, Standard Practice for Determining Thermal Resistance of Building Envelope Components from the In-Situ Data
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  7. C1199-00 standard test method for measuring the steady-state thermal transmittance of fenestration systems using hot box methods
  8. C1363-97 standard test method for the thermal performance of building assemblies by means of a hot box apparatus
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  10. C168-01 Standard Terminology Relating to Thermal Insulating Materials
  11. C177-85 Standard test method for steady-state heat flux measurements and thermal transmission properties by means of the guarded-hot-plate apparatus
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  14. C518-91, Standard test method for steady-state heat flux measurements and thermal transmission properties by means of the heat flow meter apparatus
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  39. E2099-00, standard practice for the specification and evaluation of pre-construction laboratory mockups of exterior wall systems
  40. E2128-01a Standard Guide for Evaluating Water Leakage of Building Walls
  41. E241-04 Standard Guide for Limiting Water-Induced Damage to Buildings
  42. E283-04, standard test method for rate of air leakage through exterior windows, curtain walls and doors
  43. E29-04 standard practice for using significant digits in test data to determine conformance with specifications
  44. E330-02 standard test method for structural performance of exterior windows, curtain walls, and doors by uniform static air pressure difference
  45. E331-00 Standard Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air Pressure Difference
  46. E331-00, Standard test method for water penetration of exterior windows, curtain walls, and doors by uniform static air pressure difference
  47. E547-00: water penetration of exterior windows, curtain walls, and doors by cyclic static air pressure differential
  48. E631-93a(1998)e1 Standard Terminology of Building Constructions
  49. E632-82(1996) standard practice for developing accelerated tests to aid prediction of the service life of building components and materials
  50. E72-98 Standard Test Methods of Conducting Strength Tests of Panels for Building Construction
  51. E74-04 standard practice of calibration of force-measuring instruments for verifying the force indication of testing machines
  52. E741-00 Standard Test Method for Determining Air Change in a Single Zone by Means of a Tracer Gas Dilution
  53. E773-01, Standard test method for accelerated weathering of sealed insulating glass units
  54. E779-03, ASTM Method for Determining Air Leakage Rates by Fan Pressurization Test
  55. E779-99 Standard test method for determining air leakage rate by fan pressurization
  56. E783-02 standard test method for field measurement of air leakage through installed exterior windows and doors
  57. E917-99 standard practice for measuring life-cycle costs of buildings and building systems
  58. E964-93(1998)e1 Standard Practice for Measuring Benefit-to-Cost and Savings-to-Investment Ratios for Buildings and Building Systems
  59. E96-93 Standard test methods for water-vapor transmission of materials
  60. F372-99 Standard Test Method for Water Vapor Transmission Rate of Flexible Barrier Materials Using an Infrared Detection Technique
  61. G84-89(1999)e1 standard practice for measurement of time-of-wetness on surfaces exposed to wetting conditions as in atmospheric corrosion testing
  62. Heat transmission measurements in thermal insulations
  63. Performance of exterior envelopes of whole buildings VIII: integration of building envelopes
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