Ukrainian Standard regulating the quality of the coniferous logs supplied from Ukraine.

1. Coniferous Logs of General Purpose
Requirements according to GOST 9463-88
№Indicator Requirement
1 grade 2 grade Grade 3
1 Kind of wood pine, spruce, fir, larch, cedar
2 Nominal length, m from 3.0 to 6,5 with gradation 0.25
3 Deviations from nominal length, m from 0.03 to 0.10
4 The smallest log diameter, cm 14 (to be processed by milling and sawing machines - 12)
5 The diameter of the greatest knot, cm: 3 8 allowed
- At a diameter logs up to 24 cm
- At a diameter logs 26 cm or more 5 10 allowed
6 The diameter of the tobacco bitch, cm not allowed 2 5
7 The thickness of the cutting of kernel rot and not allowed 0.20 (at one end) 0.33 (at one end)
hollow, the share of butt diameter:
in diameter and 24 cm end
26 - 38 cm 0,25 (at one end) 0,25 (at one end) 0.33 (at one end)
40 cm and more 0.33 (at one end) 0.33 (at one end) 0.50, on the second
end 0.25
8 Depth of sapwood rot, shares of diameter butt not allowed 0,1
9 The total thickness of heartwood and sapwood not allowed on demand to the
clippings rot, shares of diameter butt kernel rot (p.7)
10External mouldering rot not allowed
11The depth of the blue, the proportion of diameter 0,05 0,10 allowed
butt
12The thickness of the fillet cracks (except for 0,33 0,33 allowed
cracks from shrinkage), shares of diameter butt
13Depth of lateral cracks from shrinkage, the 0,05 0,05 0,20
proportion of diameter butt
14The depth of face cracks from shrinkage no more than allowance on length less than the
diameter of the
upper end
15Number of holes deep and shallow wormhole by not allowed 5 10
an average of 1 m length pieces.
16 Height of sweep, percentage from length of logs: 1,0 1,5 2,0
simple
complex 0,5 0,75 1,0
17The depth of mechanical damage, open bark of amount of 0.1 diameter top end and the half- allowed
side shrinkage and canker, cm diameters in the damage side and in the upper
end
18The thickness of the fillet of mechanical damage, do not apply 0.33 allowed
bark pocket, scar, shares of diameter logs
19Height of knots (from bark), cm 2 2 2
20Bevel Cutting no more than allowance on length
21The volume of defective logs in the lot (not 3,0
conforming to paragraph 1-20),%
22Recommended ratio of prices in diameter at the 90 75 68
upper end:
up to 18 cm (on)
20 - 24 cm 100 (base price) 83 71
26 cm and more 107 89 79
23Recommended price of defective logs, with the equal to the price of suitable timber of 3 grade of paragraph 22
volume of defective timber in the lot (sample):
to 3,0%
3,1% or more 45% of base price
24Conversion factor of pooled volume of logs with Nominal length of logs, m
bark in dense volume without bark (OST 13-43- 3.0 - 3.9 4.0 - 5.5 5.6 - 6.5
79)
cars without a hat, cars 0,68 0,66 0,62

2. cars with the headline: 0,67 0,65 0,61
zoning envelope
normal size 0,64 0,62 0,58