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Standard 99-10 | Standards Handbook


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Comments:

Section/Figure/Table #: Annex B of the 2016 standard
Comments:
All figures are missing from what was excerpted from ISO 13349.

Annex B mentions figure numbers that are used in the main part of AMCA 99.

Proposed Change:
Copy all mentioned figures from ISO or preface the annex that figures were left out due to copyright or whatever.

Armin Hauer
ebm-papst Inc.
armin.hauer@us.ebmpapst.com
Posted: August 22, 2017

Section/Figure/Table #: "See Annex B for ISO definition of this term"
Comments:
This footnote occurs 29 times in the standard: "See Annex B for ISO definition of this term"
Each time it is is used in-line but separated from the text by one line.
And Asterix is missing each time form the expression.

Proposed Change:
Attach an asterix to the expression .
& make this one global footnote for the entire document.

Armin Hauer
ebm-papst Inc.
armin.hauer@us.ebmpapst.com
Posted: August 22, 2017

Section/Figure/Table #: Annex B
Comments:
Several entries for these ISO definitions refer to other sections of ISO 13349. However the text does not indicate that the reference is in another document. The reader would assume it is in this document and be unable to find it.l

Proposed Change:
In front of all dead end references in Annex B, add "[ISO 13349:2010]"

Joe Brooks
AMCA International, Inc.
jbrooks@amca.org
Posted: November 9, 2018

Section/Figure/Table #: Definitions
Comments:
Air Curtain Standard 220 introduced new method to define ACU construction and orientation as well as updating other definitions.

Proposed Change:
Make necessary changes to ACU definitions in Standard 99 to harmonize.

David Johnson
Berner International LLC
Djohnson@berner.com
Posted: November 13, 2018

Section/Figure/Table #: 14. Operating Limits for Centrifugal Fans (fig1-5)
Comments:
clarity,
see email to Erin on Dec 11, 2018

Proposed Change:
14. Operating Limits for Centrifugal and Tubular Impellers
A class standard specifies that an impeller is structurally approved by the manufacturer for reliably operating at every point of rating on and below the maximum limits for that class.
Figure 1 —Airfoil & Backward Inclined Single Width Impellers
Figure 2 —Airfoil & Backward Inclined Double Width Impellers
Figure 3 —Forward Curved Single Width Impellers
Figure 4 —Forward Curved Double Width Impellers
Figure 5 — Tubular Fan Impellers

Armin Hauer
ebm-papst Inc.
armin.hauer@us.ebmpapst.com
Posted: December 11, 2018

Section/Figure/Table #: Class Standard
Comments:
Clarity,
See email to Erin.

Proposed Change:
Class Standard
An established minimum level of structural strength for impellers in terms of fan pressure and average outlet velocity.

Armin Hauer
ebm-papst Inc.
armin.hauer@us.ebmpapst.com
Posted: December 11, 2018

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