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TECHNICAL SPECIFICATIONS OF MATERIALS

Designations		Nature	Utilisation
Chain knot		-20/6 Cotton cable 20/6 -Silk spun threade 7/2
F R A M E	Support thread	-Especially fine quality linen thread or cotton of the same thickness and strength. -Silk spun thread on frame of weave 7/2	One thread
	Knots	1/: Natural or dyed wool : -Mechanically handled. -Or assaying 7/2 Cleaned and treated against moths.. Dye withstands light, cleaning, and rubbing	Alternately rowed in two threads and one thread
	Knots	2 /: Silk in natural or dyed hues. -Or assaying 7/2 Cleaned and treated against moths.. Dye withstands light, cleaning, and rubbing	Two 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	250.000 knots per m2 (50x50)	Mini: 245.000 knots per m2 (49x50)	Mini : 235.000 knots per m2 (47x50)
Height of knots	Mini : 4 mm Maxi : 5 mm Perfect regularity of shear demanded	Mini : 5 mm Maxi : 5 mm Regularity of shear demanded	Mini : 4 mm Maxi : 5 mm
Weight	Mini : 2,400 kg maxi : 2,600 kg Cotton carpet	Mini : 2,300 kg Maxi: 2,500 kg Cotton carpet	Mini : 2,200 kg Maxi: 2,400 kg Cotton carpet
Weight	Mini : 2,000 kg maxi : 2,400 kg Silk carpet	Mini : 1,900 kg maxi : 2,300 kg Silk carpet	Mini : 1,800 kg maxi : 2,200 kg Silk carpet
Centralization of design	Tolerance of 1% on each dimension	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