[KongchangAI]
Unverified50% confidenceFactExact time

ISO 8573-1 Class 0 does not set a fixed threshold, it is agreed by both supplier and buyer in the contract, must be stricter than Class 1, and must be supported by third-party test reports; Class 1 specifies a total oil content of no more than 0.100 mg/m³.

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50%
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Long-term
Relevance
10/13/2026
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