Evaluation grid of pipe laggings

The decree of February 7, 1996 defines the evaluation method of asbestos containing pipe laggings.
The evaluation varies from 1 to 3:
- 1: periodic control of the state of conservation of the product,
- 2: monitoring of the level of dust contamination,
- 3: removal.

The result is obtained by filling from left to right the columns of the following grid:

Degradation and Surface quality				Result

Bad condition				3

			low	1
		low	middle	1
			high	2

			low	1
	P	middle	middle	1
			high	2

			low	2
		high	middle	2
			high	2
Local degradations
			low	2
		low	middle	2
			high	2

			low	2
	NP	middle	middle	2
			high	3

			low	2
		high	middle	3
			high	3

			low	1
		low	middle	1
			high	2

			low	1
	P	middle	middle	1
			high	2

			low	2
		high	middle	2
			high	2
Good state
			low	1
		low	middle	2
			high	2

			low	1
	NP	middle	middle	2
			high	2

			low	2
		high	middle	3
			high	3

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