Differences between GB5044 and hgb20660
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GB5044 – Degree of hazard from occupational exposure; HG20660 – Chemical hazards of chemical substances in pressure vessels. How is the degree of toxicity hazard of a substance determined? Which one is accurate
GB5044 has been repealed; the classification of the hazards associated with occupational exposure to toxic substances is now based on GBZ230-2010
Thank you. May I ask which standard should be referred to regarding the toxicity of media in non-pressure pipelines?
GBZ230-2010 Classification of the Hazard Level of Occupational Exposure to Toxic Substances
In accordance with the newly issued standard specification \"GBZ230-2010 Classification of the Hazard Level of Occupational Exposure to Toxic Substances\", the classification of medium toxicity shall be carried out in line with this new standard.