The COV: Volatil
Organic Compounds
Volatile
organic compounds are organic substances :
- Or of synthesis,
said secondary, they are petrochemicals. They are going to become soaked in any forms of
supports (varnishes, wood stain, synthetic paints).
They put months to volatilize in
our inside.
- Or
natural, said
primary, quickly volatilize. (Ex: in natural organic paints in 100).This day, no French label
concerns the natural products (but foreign labels, yes!).
The content in COV is classified
according to their nature, paints
in aqueous phase -PA- and in phase
solvent
-PS- (toxins) and their domain of application
of said paints. Thanks to the directive Reach, this COV
is henceforth limited according to g/l and by
threshold : ex, maximum of 30g / l in inside in PA.
The
mineral paints (paint in the lime, the clay) do not emit COV.
Example of calculations
of Volatil organic compounds:
(Lasting "degassing" in 12 to
24 months)
Only decoration of the walls of
a room of 3m × 4m, by height under ceiling of 2,50 m, is 35m ².
Version 1
- coats "polished concrete" :
return 1kg by m² !! (If 1kg ~ 1litre)
Rate COV 200g/l in m² thus 200g by m² = 35 m² ×
200g /m ² = 7000 g of cov/room
+finish polishes on concrete: rate COV polishes 75g/l
1litre for 8-10 m² thus 7.5g cov for 1m² × 35 m² = 262.5 g
Total COV in gram
for this room = 7262.50 g
Version 2
- paint acrylic satin not éco
label nor NF environment averages of 350g/l of COV
For 1 liter = 10m² thus 35g in m² × 35 m² = 1225g
× 2 sleep paint = 2450g cov
Total COV in gram
for this room = 2450 g
Enterprise
THOMAS:
choice
through
ESFD
(environmental
and health
declaration
sheets)
Version 3 -
paint éco label satin (threshold 2010 for matt) of 30g/l of cov
for 1 liter = 10 in 12m²
We keep the value of 1liter for 10m² thus 3g cov
by m² × 35 m² × 2
sleep paint
= 105g × 2
Total COV in gram
for this room = 210 g
Version 4 - paint with
10g/l of cov
for 1 liter = 10m² thus 1g by m² × 35 m² = 35g × 2
sleep paint
= 75 g
Total COV in gram
for this room = 75 g
Version 5 - paint with
1g/l of cov
(synthetic or natural) always 1litre = 10m²
0.1 g by m² × 35 m² = 3.5 g × 2
sleep paint
= 7 g
Total COV in gram
for this room = 7 g
