Standard Test Method for Measuring Air Performance Characteristics of Central Vacuum Cleaning Systems

SCOPE
1.1 This test method covers the procedures for determining air performance characteristics of household central vacuum cleaning systems which use a flexible cleaning hose assembly. This test method does not apply to the carpet cleaning mode of operation, nor does it apply to any operation where dirt or debris is involved.  
1.2 This test method and calculations include determination of suction, air flow, air power, maximum air power, and input power under standard conditions.  
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only. Note 1-For more information on air performance characteristics, see Ref (1) through (7).  
1.4 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 and health practices and determine the applicability of regulatory limitations prior to use. A specific precautionary statement is given in Note 2.

General Information

Status
Historical
Publication Date
09-Sep-1999
Technical Committee
Drafting Committee
Current Stage
Ref Project

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ASTM F820-99 - Standard Test Method for Measuring Air Performance Characteristics of Central Vacuum Cleaning Systems
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
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An American National Standard
Designation: F 820 – 99
Standard Test Method for
Measuring Air Performance Characteristics of Central
1
Vacuum Cleaning Systems
This standard is issued under the fixed designation F 820; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This test method covers procedures for determining air 3.1 Definitions:
performance characteristics of household central vacuum 3.1.1 air power, AP, W, n—in a vacuum cleaner, the net time
cleaning systems, which use a flexible cleaning hose assembly rate of work performed by an air stream while expending
and incorporates a series universal motor(s). This test method energy to produce an airflow by a vacuum cleaner under
does not apply to the carpet cleaning mode of operation where specified air resistance conditions.
dirt or debris is involved. 3.1.2 automatic bleed valve, n—any device a part of a
1.2 These tests and calculations include determination of vacuum cleaner’s design, which automatically introduces an
suction, airflow, air power, maximum air power, and input intentional leak within the vacuum cleaner’s system when
power under standard operating conditions (see Note 1). manufacturer specified conditions are met.
3.1.3 corrected airflow, Q, cfm, n—in a vacuum cleaner, the
NOTE 1—For more information on air performance characteristics, see
2 volume of air movement per unit of time under standard
Refs (1-6).
atmospheric conditions.
1.3 The values stated in inch-pound units are to be regarded
3.1.4 input power, W, n—the rate at which electrical energy
as the standard. The values given in parentheses are provided
is absorbed by a vacuum cleaner.
for information only.
3.1.5 model, n—the designation of a group of vacuum
1.4 This standard does not purport to address all of the
cleaners having the same mechanical and electrical construc-
safety concerns, if any, associated with its use. It is the
tion with only cosmetic or nonfunctional differences.
responsibility of the user of this standard to establish appro-
3.1.6 population, n—the total of all units of a particular
priate safety and health practices and determine the applica-
model vacuum cleaner being tested.
bility of regulatory limitations prior to use. A specific precau-
3.1.7 repeatability limit (r), n—the value below which the
tionary statement is given in Note 2.
absolute difference between two individual test results obtained
under repeatability conditions may be expected to occur with a
2. Referenced Documents
probability of approximately 0.95 (95 %).
2.1 ASTM Standards:
3.1.8 reproducibility limit (R), n—the value below which
3
E 1 Specification for ASTM Thermometers
the absolute difference between two test results obtained under
4
F 395 Terminology Relating to Vacuum Cleaners
reproducibility conditions may be expected to occur with a
F 431 Specification for Air Performance Measurement Ple-
probability of approximately 0.95 (95 %).
4
num Chamber for Vacuum Cleaners
3.1.9 repeatability standard deviation (S ), n—the standard
r
2.2 AMCA Standard:
deviation of test results obtained under repeatability condi-
5
210–85 Laboratory Methods of Testing Fans for Rating
tions.
3.1.10 reproducibility standard deviation (S ), n—the stan-
R
dard deviation of test results obtained under reproducibility
1
conditions.
This test method is under the jurisdiction of ASTM Committee F11 on Vacuum
Cleaners and is the direct responsibility of Subcommittee F11.22 on Air Perfor-
3.1.11 sample, n—a group of vacuum cleaners taken from a
mance.
large collection of vacuum cleaners of one particular model,
Current edition approved Sept. 10, 1999. Published December 1999. Originally
which serves to provide information that may be used as a basis
published as F 820 – 88. Last previous edition F 820 – 95.
2
for making a decision concerning the larger collection.
The boldface numbers in parentheses refer to the list of references at the end of
3
this standard.
3.1.12 standard air density, r , lb/ft , n—atmospheric air
std
3
Annual Book of ASTM Standards, Vol 14.03. 3 3
density of 0.075 lb/ft (1.2014 kg/m ).
4
Annual Book of ASTM Standards, Vol 15.08.
5
3.1.12.1 Discussion—This value of air density corresponds
Available from Air Movement and Control Association, Inc., 30 West Univer-
sity Dr., Arlington Heights, IL 60004–1893. to atmospheric air at a temperature of 68 °F (20 °C), 14.696 psi
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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