Detection and assessment of volatile organic compounds in interior wall coating in Lanzhou city

  Objective   To study the status of volatile organic compounds(VOCs)in two kinds, 25 brands of interior wall coating.

  Methods   VOCs, density and the water in two kinds of interior wall coating were tested by GB6 751-86, GB76 750-86 and azeotropic distillation, respectively.

  Results   With regard to the quantities of VOCs, 42% of the water soluble coating(5 out of 12 samples)and 23% of the emulsion(3 out of 13 samples)were above 200 g/L evaluated by GB18 582-2001.No statistical significance between the two kinds of interior wall coating was found(t=1.657, P > 0.05).

  Conclusion   The quality of the two kinds of interior wall coating was much concerned, therefore, the government should pay more attentions to quality and health safety of interior wall coating.