1. Extraction Of Testing Sample
The glued laminated timber from which test pieces are cut off (hereinafter referred to as “sample laminated timber”) shall be extracted from a lot in the manner specified below for each category of tests.
· As to the immersion delamination test, moisture content test and surface check resistance test, sample laminated timber shall be extracted at random up to the number of pieces specified in the right column of the following table corresponding to the size of the lot specified in the left column of the same table.
Size of the lot (in piece) Number of sample laminated timber (in piece)
Up to 200 2 In the case of re-testing, twice of the number
201 ~ 500 3 of sample laminated timber listed in left shall
501 ~ 1.000 4 be extracted
1,001 ~ 3.000 5
3.001 ~ and more 6
· As to the boiling water soak delamination test, vacuum/pressure treatment test, block shear test and bending test, sample laminated timber shall be extracted at random up to the number of pieces specified in the right column of the following table corresponding to the size of the lot specified in the left column of same table
Size of the lot (in piece) Number of sample laminated timber (in piece)
Up to 10 3 In the case of re-testing, twice of the number
11 ~ 20 4 of sample laminated timber listed in left shall
21 ~ 100 5 be extracted
101 ~ 500 6
501 ~ and more 7
· As to the formaldehyde emission test, sample laminated timber shall be extracted from a lot at random up to the number of pieces specified in the right column of the following table corresponding to the size of the lot specified in the left column of the same table
Size of the lot (in piece) Number of sample laminated timber (in piece)
Up to 1.000 up to 2
1.001 ~ 2.000 3
2.001 ~ 3.000 4
3.001 ~ or more 5
