Significance and Use
Air permeability is an important factor in the performance of vacuum cleaner bag filter media, because it is a direct indicator of the resistance to air flow. It may also indicate the size of vacuum cleaner bag needed to achieve the desired air flow volume.
Performance specifications, both industrial and military, have been set up on the basis of air permeability and are used in the purchase of materials where permeability is of interest.
Since air permeability is not a linear function of pressure differential between paper surfaces, all tests should be made at a prescribed pressure differential, 0.5 in. (12.7 mm) of water.
1.1 These test methods cover procedures to be followed for qualifying papers to be used in the manufacture of vacuum cleaner bags and filters. The filtration efficiency of the paper is not evaluated with the use of these test methods.
1.2 The procedures appear in the following sections:
|Air Permeability (Test Method D 737)||3-5|
|Basis Weight (Test Method D 646)||6-8|
|Bursting Strength (Mullen Test) (Test Method D 774)||9-11|
|Internal Tearing Resistance (Test Method D 689)||12-14|
|Tensile Breaking Strength (Test Method D 828)||15-17|
1.3 The values stated in inch-pound units are to be regarded as the standard.
1.4This 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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D646 Test Method for Grammage of Paper and Paperboard (Mass Per Unit Area)
D689 Test Method for Internal Tearing Resistance of Paper
D737 Test Method for Air Permeability of Textile Fabrics
D774/D774M Test Method for Bursting Strength of Paper
D828 Test Method for Tensile Properties of Paper and Paperboard Using Constant-Rate-of-Elongation Apparatus
T414 Internal Tearing Resistance of Paper
filtration; paper; vacuum cleaner;
ICS Number Code 85.080 (Paper products); 85.080.99 (Other paper products)
ASTM International is a member of CrossRef.
Citing ASTM Standards
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