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A carpet with a texture of 30x30 has 90,000 knots per m2 (30 vertical and 30 horizontal rows per 10 cm).

TECHNICAL SPECIFICATIONS OF MATERIALS

Designations		Nature	Utilisation
Chain knot		-Cotton cable 20/9 -Or Cotton thread of same thickness and strength
F R A M E	Support thread	-Cotton thread 12/6 -Cotton thread equivalent -Or wool thread	One thread
F R A M E	Knots	Natural or dyed wool : -mechanical weaving or handwoven. -Assaying 2.300 m/kg -Or assaying 7/2 Cleaned and treated against moths.. Dye withstands light, cleaning, and rubbing	Two threads Three thread

A certificate or a bill of sale guaranteeing all the operations associated with the wool used for the carpet (cleaning, dying, etc.) is provided by either the wool seller or the wool dyer and required by the ONA.

SPECIFICATIONS AND CLASSIFICATION
OF FINISHED PRODUCT

Critères	Superieur	1st choice	2nd choice
Texture	90.000 knots per m2 (30x30)	Mini: 87.000 knots per m2 (29x30)	Mini : 34.000 knots per m2 (27x30)
Height of knots	Mini : 8 mm Maxi : 10 mm Perfect regularity of shear demanded	Mini : 8 mm Maxi : 10 mm Regularity of shear demanded	Mini : 8 mm Maxi : 10 mm
Weight	Mini : 2,800 kg maxi : 3,200 kg	Mini : 2,700 kg Maxi: 3,100 kg	Mini : 2,500 kg Maxi: 2,900 kg
Centralization of design	Zero tolerance	Tolerance of 1,5% on each dimension	Tolerance of 2% on each dimension
Fringes	-Perfect Regular -Perfect bias cut	-Regular -bias cut	-Regular -Bias cut with slight tolerance that does not alter aspect of carpet.
Change of hue	None	None	Light in background where it does not alter aspect of carpet
Warping	None	None	Partial and does not alter aspect of carpet