1、 STANDARD FOR SAFETY Performance Requirements for Instruments Used to Detect Oxygen-Deficient/Oxygen-Enriched Atmospheres This page intentionally left blank. UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Performa
2、nce Requirements for Instruments Used to Detect Oxygen-Deficient/Oxygen-Enriched Atmospheres, UL 920401 First Edition, Dated November 15, 2007 Summary of Topics Adoption of ANSI/ISA-92.04.01, Part 1-2007 (R2013), Standard for Performance Requirements for Instruments Used to Detect Oxygen-Deficient/O
3、xygen-Enriched Atmospheres as ANSI/UL 920401. This Standard is being issued to update the title page to reflect the reaffirmation of its ANSI approval. No changes in requirements have been made. As noted in the Commitment of Amendments statement located on the back side of the title page, UL and ISA
4、 are committed to updating this co-designated standard jointly after processing according to the standards development procedures by UL Please note that as this is a simple reaffirmation of an existing ISA standard. These requirements are substantially in accordance with Proposal(s) on this subject
5、dated August 25, 2017. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this Standard “as is“ without war
6、ranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or fitness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of profits, lost savings, loss of
7、data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the
8、 form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while pur
9、chaser is storing an electronic Standard on the purchasers computer system. UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL This page intentionally left blank. UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION W
10、ITHOUT PERMISSION FROM UL ISA - International Society of Automation ANSI/ISA-92.04.01, Part 1-2007 (R2017) First Edition Underwriters Laboratories Inc. ANSI/UL 920401, Part 1-2007 First Edition Performance Requirements for Instruments Used to Detect Oxygen-Deficient/Oxygen-Enriched Atmospheres Novem
11、ber 15, 2007 (Title Page Reprinted: November 3, 2017) ANSI/ISA/UL 920401, Part 1-2007 (R2017) UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL
