ASTM-F820 2011

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F820-11 Standard Test Method for Measuring Air Performance Characteristics of Central Vacuum Cleaning Systems

Published By	Publication Date	Number of Pages
ASTM	2011	16

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Category: ASTM

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Description

1.1 This test method covers procedures for determining air performance characteristics of household central vacuum cleaning systems, which use a flexible cleaning hose assembly and incorporates a series universal motor(s). This test method does not apply to the carpet cleaning mode of operation where dirt or debris is involved.

1.2 These tests and calculations include determination of suction, airflow, air power, maximum air power, and input power under standard operating conditions (see Note 0).

Note 0

For more information on air performance characteristics, see Refs () .

1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.

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 0.

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PDF Pages	PDF Title
1	Scope Referenced Documents Terminology
2	Significance and Use Apparatus Sampling Test Vacuum Cleaners
3	Procedure FIG. 1
4	FIG. 2 FIG. 3
5	Calculation FIG. 4
6	Report Precision and Bias TABLE 1 TABLE 2
7	Keywords A1. MATHEMATICAL METHOD FOR DETERMINING MAXIMUM AIR POWER POINT A1.1 A1.2 A1.3 A1.4
8	A2. DETERMINATION OF 90 % CONFIDENCE INTERVAL A2.1 Theory TABLE A2.1
9	A2.3 Example FIG. A2.1
10	X1. DERIVATION OF DENSITY RATIO FORMULA X1.1 Symbols X1.2 Derivation
11	X1.3 Error Analysis for Usable Range of svp Equation X2. DERIVATION OF AIR FLOW FORMULA FROM ASME STANDARDS X2.1 X2.2 X2.3
12	X2.4 X3. DERIVATION OF AIR POWER EQUATION X3.1 X3.2 X3.3 X3.4
13	X4. STANDARD CONDITIONS X5. MINIMUM AND MAXIMUM h VALUES BY ORIFICE SIZE X6. ALTERNATE EQUATIONS FOR FINDING ORIFICE FLOW COEFFICIENT
14	X7. EXAMPLE OF CALCULATING AIR POWER AT TWO DIFFERENT TEST LOCATIONS X7.1 X7.2 X7.3 X7.4 Test Location 1: Low Elevation X7.5 X7.6 X7.7 TABLE X7.1
15	X7.8 X7.9 Test Location 2: High Elevation X7.10 X7.11 X7.12 TABLE X7.2
16	X7.13 X7.14 REFERENCES TABLE X7.3

Additional information

Standard Title	F820-11 Standard Test Method for Measuring Air Performance Characteristics of Central Vacuum Cleaning Systems
Published Code	ASTM
Publication Date	2011
Pages Count	16

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