Properties of ammonia water

2018-12-07 View Original

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Is 20% (m/m) ammonia solution classified as a Class A2 fluid? Can PL flanges be used?

Reply #2 2018-12-07

Ammonia is classified as having a low level of hazard in the GB5044 classification system for occupational exposure to toxic substances; it corresponds to Category A2 fluids as specified in the GB 50316 Code for Design of Industrial Metal Piping. Press 13. 1. 3. Rule 6 stipulates that flat welding flanges must indeed not be used

Reply #3 2018-12-07

Thank you. GB5044 is no longer in use now; I’m not sure what hazard level ammonia has at present

Reply #4 2018-12-07

This post was last edited by li*nji on 2018-12-7 at 15:25. GBZ 230-2010 \"Classification of the Hazard Levels of Occupational Exposure to Toxic Substances\"; for reference: https://wenku.baidu.com/view/d852043b9a6648d7c1c708a1284ac850ad0204b0.html. Ammonia hazard identification table

Reply #5 2018-12-07

Mm-hmm, it has been designed according to Class A2 standards

Reply #6 2019-02-22

Determine toxicity according to GBZ230. Refer to HG20660_2017: Ammonia is of moderate hazard.

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Properties of ammonia water

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