What is TWA ? – for 8 Hrs. exposure perday

What is TWA ? – for 8 Hrs. exposure perday

Registration Open= +92-3315999937, +92- 3215056755 (WhatsApp Only)

It is define as the limit of air bone concentration of substances under which personnel may be
exposed for 8 hrs. per day without any adverse effect.

Registration Open= +92-3315999937, +92- 3215056755 (WhatsApp Only)

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