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1、木材检尺标准木材尺寸统一由厘米、米、立方米公制量度单位计算。一、检量方式直径：原木量小头直径，除去皮厚，以2厘米为增进单位，不足者四舍五入。长度：原木长25米的按0.2米进位，长5.5米以上的按0.5米进位；直径检量：以小头断面的去皮直径，经进舍后作为检尺径。均以2厘米为一增进单位，满1厘米进位，不足1厘米时舍去。例如检量的直径为24.8厘米,则检尺径为24厘米。原木检尺径的量取是通过小头断面中心，先量短径，再通过短径的中心垂直量长径。如短径不足26厘米，其长短径之差在2厘米以上，或短径自26厘米以上，其长短径之差自4厘米以上者，称为椭圆材，均以长短径的平均值进舍后作为检尺径，否则均以短径为准
2、。对小头端面呈不规整、双心、劈裂等现象的原木，则按有关规定予以量取。长度检量：长度应在大小头两端面之间相距最短处取直检量。除加工用原木允许2.5米这一长级以及特级原木外，其他原木的长度增进单位均为0.2米，不足02米的舍去。此外，还规定各类原木有一定的长级公差。例如直接使用原木、针叶树加工用原木和阔叶树加工用原木的长级公差均为-2+6厘米，特级原木为06厘米。如量得的实际长度小于原木标准规定的长级而又不超过负偏差时，则仍按标准的长级计算，否则按下一级的长度计算。二、原木材积计算标准本标准适用于所有树种的原木材积计算。(I)检尺径自4-12CnI的小径原木材积由下式确定：V=O.78541.(D
3、+0.451.+0.2)210000式中：V材积(m3)；1.检尺长(m)；D检尺径(cm)。(2)检尺径自14cm以上的原木材积由下式确定：V=0.78541.D+0.51.+0.0051.2+0.0001251.(14-l)2(D-IO)P10000(3)原木的检尺长、检尺径按GB144.2-84原木检验尺寸检量的规定检量。(4)检尺径4-6Cnl的原木材积数字保留四位小数，检尺径自8cm以上的原木材积数字，保留三位小数。三、原木材积表检尺长，m险尺径，cm2.02.22.42.S2.62.8材枳，,40.00410.00470.00530.00560.00590.006660.00790
4、.00W0.01000.01050.01110.012280.0130.0150.0160.0170.0180.020100.0190.0220.0240.0250.0260.029120.0270.0300.0330.03S0.0370.040U0.0360.0400.0450.0470.0490.054160.0470.0520.0540.0600.0630.069180.0590.0650.0720.0760.079O.OS6200.0720.0800.0880.0920.0970.105220.080.0960.1060.1U0.1160.125240.1020.1U0.1250.13
5、10.1370.149260.1200.1330.1460.1530.1600.174280.1380.1540.1690.1770.1850.201300.1580.1760.1930.2020.2110.230320.1800.1990.2190.2300.2400.260乂0.2020.2240.2470.2580.2700.293360.2260.2510.2760.2890.3020.327380.2520.2790.3070.3210.3350.354400.2780.3090.3400.3550.3710.402420.300.3400.3740.3910.4080.442440
6、.3360.3720.4090.4280.4470.4M460.3670.4060.4470.4670.4870.528480.3990.4420.4860.5080.5300.574500.4320.4790.S20.5500.5740.622520.4670.5180.5690.S940.6200.6720.5030.5580.6130.6400.6680.724560.5410.5990.6580.6880.7180.777580.5800.6420.7050.7370.7690.833600.6200.M70.7S40.7880.8220.890俵表检尺长(m检尺径，cm2.02.22
7、.42.52.62.8材职m1620.6610.7330.8040.8410.8770.950640.7040.7800.8570.8950.9341.Oll660.7490.8290.9100.9510.9921.074680.7940.8800.9661.0091.0521.140700.8410.9311.0221.0681.1141.207720.800.9851.0811.1291.1781.276740.9391.0401.1411.1921.2441.347760.901.0961.2031.2571.3111.419781.0431.1541.2671.3231.3M1.494
8、801.0961.2141.3321.39!1.4511.571821.1511.2741.399!.4611.5231.649941.2081.3371.4671.S321.5981.730861.2651.4011.5371.6051.S741.812881.3251.4661.6091.6801.7521.896901.3851.5331.6821.7571.8321.983921.4471.6011.7571.8351.9132.071941.5101.6711.W31.9151.9972.161961.5741.7421.9111.9%2.0822.253981.6401.8151.
9、9912.0802.1692.3471001.7071.8392.0732.1652.2572.4431021.7761.9652.1562.2522.3482.540!041.8462.0422.2402.3402.4402.6401061.9172.1212.3272.4302.R42.7421081.9902.2022.4152.S222.6292.845no2.0642.2832.5042.6152.7272.95022.1392.3672.5962.7112.8263.0581142.2162.4512.M82.8082.9273.1671162.2942.5372.7832.906
10、3.0303.2781182.3732.6252.8793.0073.1353.3911202.4542.7142.9773.1093.2413.506续表险尺径，cm检尺长，m3.03.23.43.63.8材脱.m,40.00730.00800.0OSe0.00960.010460.01340.0147o.oo0.01730.018780.02!0.0230.0250.0270.029100.0310.0340.0370.0400.042120.0430.0470.0500.0540.058U0.0580.0630.0680.0730.078160.0750.0810.0870.0930.1
11、00180.0930.1010.1080.1160.124200.1140.1230.1320.1410.151220.1370.1470.1580.1690.180240.1810.1740.1860.t990.212260.1880.2030.2170.2320.247280.2170.2340.2500.2870.2S4300.2480.2670.2860.3050.324320.2810.3020.3240.3450.367S40.3180.3400.340.3U0.412360.3530.3800.400.4330.460390.3930.4220.4510.4810.510400.
12、4340.4660.4980.5310.564420.4770.5120.5480.5830.619440.5220.5610.5990.6380.678460.5700.l20.6540.6950.739480.6190.6650.7100.7560.802500.6710.7200.7690.8190.869520.7240.7770.8300.8840.93540.7800.8370.1940.9511.00950.83S0.8990.9601.0211.00580.8990.9631.0281.0941.160600.9591.0291.0991.1691.239续表检尺长.m检尺径，
13、Cm3.03.23.43.63.B材m,621.0231.0971.1721.2461.321641.0891.1681.2471.3261.406661.1571.2411.3251.4091.493681.2271.3161.4051.4941.583701.3001.3931.4871.S811.676721.3741.4731.5721.S711.771741.4501.554i.6S91.7M1.869761.5281.6381.7481.8591.969781.6091.7241.8401.9562.073801.6911.8121.9342.0562.178821.7761.90
14、32.0302.1582.287%1.8621.9952.1292.2632.398861.9512.0902.2302.3712.511882.0422.1872.3342.4802.627902.2.2872.4392.5932.746922.2292.3382.5482.7072.868942.3262.4922.6582.8252.992962.4252.5982.7712.9453.119982.5262.7062.8863.0673.2481002.6292.8163.0043.1923.3801022.7342.9283.1233.3193.5151042.8413.0433.2
15、463.4493.6521062.9503.1603.3703.5813.7921083.0623.2793.4973.7163.9341103.1753.4003.6263.8534.0801123.2903.5243.7583.9924.227IU3.4083.6503.8924.1354.3781163.5273.7774.0284.2794.5311183.6493.9084.1674.4264.6861203.7734.0404.3084.5764.845GB481484续表检尺长，m检尺径cm4,04.24.44.64.8材黑.m40.01130.01220.01320.01420
16、.015260.02010.02160.02310.02470.026380.0310.0340.0360.0380.040100.0450.0480.0510.0540.058120.0620.05S0.0690.0740.078140.0830.0890.0940.1000.105160.1060.H30.1200.1260.134180.1320.1400.1480.1560.165200.1600.1700.1800.1900.200220.1910.2030.2140.2260.238240.2250.2390.2520.2660.279260.2620.2770.2930.3080
17、.324n0.3020.3190.3370.3540.372300.3440.3640.3830.4040.424320.3890.4110.4330.4560.479340.4370.4610.4860.5110.537360.4S70.5150.5420.5700.598380.5410.5710.6010.6320.563400.S970.6300.6630.6970.731420.6560.6920.7290.760.803440.7170.7570.7970.8370.877460.7820.8250.8680.9120.955480.8490.8960.9420.9901.037W
18、0.9190.9691.0201.0711.122520.9921.0461.1001.1S51.21054l.0671.12S1.1S41.2421.301561.1451.2081.2701.3331.396581.2261.2931.3601.4271.43601.3101.3811.4521.5241.595续表检尺长*ra检尺径，Cm4.04.24.44.64.8材积m,621.3971.4721.5481.6241.700641.4161.5661.6471.7281.808661.5781.6631.7491.S341.920681.8731.7631.8541.9442.034
19、701.7711.8661.9612.0572.152721.87!1.9722.0722.1732.274741.9752.OBO2.1862.2922.399762.0812.1922.3032.4152.527782.1892.3062.4242.5412.658802.3012.4242.5472.6702.793822.4152.S442.6732.S022.931842.5322.6672.8022.9373.072862.6522.7932.9M3.0763.217882.7752.9923.0703.2173.365902.9003.0543.2093.3623.516923.
20、0283.1893.3503.5103.671943.1593.3273.4943.6623.829963.2933.4673.6423.8163.990983.4293.8113.7923.9744.1551003.5693.7573.9464.1354.3231023.7113.9074.1034.2994.4941043.554.0594.2634.4664.6691064.0034.2144.4254.6364.M71084.1534.S724.5914.8105.0281104.3064.5334.7604.9875.2131124.4624.6974.9325.1675.40111
21、44.6214.S645.1075.3505.5921164.7825.0345.2855.5365.7871184.9475.2075.4665.7265.M51205.1135.3825.6515.9196.186续表检R长，m嘘尺侵，Cm5.05.25.45.65.8材用，40.01630.017S0.01860.01990.021160.02800.02980.03150.03340.035480.0430.0450.040.0510.053100.0610.0640.0680.0710.075120.0820.060.0910.0950.100140.1110.1170.!230.1
22、290.136】60.U10.1480.1SS0.1630.171180.1740.1820.1910.2010.210200.2100.2210.2310.2420.253220.2500.2620.2750.2870.300240.2930.3080.3220.3360.3S1260.M00.3550.3730.3890.406280.3910.4090.4Z70.4460.465300.4440.4650.486O.5C70.528320.5020.5250.5480.57!0.595340.5S20.5880.6140.5400.666360.6260.6550.6830.7120.7
23、41390.6940.7250.7570.7880.820400.7650.8000.8340.8690.903420.8400.8770.9150.9530.990440.9180.9590.9991.0401.082460.9991.(M31.0M1.1321.177481.0841.1321.1M1.2281.276501.1731.2241.2761.S271.379521.2651.3201.S751.4311.486541.301.4191.4781.5381.597561.4591.5221.M5l.491.712581.5S11.6291.6961.7641.832501.86
24、71.7391.1111.M31.955续表检尺长.m桧尺径，cm5.05.25.45.65.8材枳m621.7761.8531.9292.0052.082641.M9i.9702.0512.1322.213662.0052.0912.1772.2632.348时2.1252.2162.3062.3972.487702.2482.3442.4392.5352.631722.3752.4762.5762.6772.778742.5052.6112.7172.8232.929762.6382.7502.8622.9733.047B2.7752.8933.0103.1273.244802.9163.
25、0393.1623.2843.407823.0603.1893.3173.4463.574843.2073.3423.4773.6113.745863.3583.4993.6403.7803.921883.5123.6603.8073.9534.100903.6703.8243.9774.1304.283923-83J3.9924.1524.3114.471943.9964.1634.3304.4964.662964.l44.3384.5124.6854.857984.3364.5174.6974.775.0571004.5114.6994.887S.0735.26010246904.8855
26、.0805.2745.4671048725.0745.275.4785.6791065-0585.2675.4775.M65.894108S-2475.4645.6815.8986.113no5.4395.6645.M96.1136.3371125.6355.8686.1016.3336.5641145.8J46.0768.3166.5566.7951166.0376.2876.5366.7847.0311186-2446.502.7597.0157.2701206.4536.7206.9157,2507.SU续表检尺长m检尺径cm6.06.26.46.66.8材鼠m40.02240.0238
27、0.02520.02660.028160.03730.03940.04140.04360.04580.050.0590.0620.0650.068100.880.0820.M60.0900.094120.1050.1090.1140.1190.124140.1420.1490.1560.1620.169160.1790.1870.1950.2030.211180.2190.2290.2M0.2480.258200.2840.2750.2S60.2980.309220.S130.320.3390.3520.365240.360.3800.3960.4110.426260.4230.4400.45
28、70.4740.491280.4840.5030.5220.5420.561300.5490.S710.5920.6140.636320.6190.6430.670.910.715340.6920.7190.7460.7720.799360.7700.7990.8290.85S0.898M08520.M40.9160.9490.981400.9M0.9731.OOg1.0441.079421.0281.0671.1051.1431.1S24411231.1W1.2061.2471.299461.2211.2661.3111.351.401481-3241.3721.4211.4691.5185
29、01.4311.4tt1.5351.5171.639521.5421.5971.S531.7091.7855416571.7161.7761.B351.B9S56.1.8391.9031.9672.030SS1.8991.9672.0352.1022.170602.0272.0992.1712.2432.315续表检尺长，m检尺自，cm7.07.27.47.67.8材积，m40.02970.03130.03300.03470.036480.04110.05040.05290.05520.057880.0710.0740.0770.0l0.084100.0980.1020.1060.1110.1
30、15120.1300.1350.1400.140.151140.1760.1840.1910.i990.20160.2200.2290.2380.2470.256180.2680.2780.2890.3000.310200.3210.3330.3450.3580.370220.3790.3930.4070.4210.435240.4420.4570.4730.U90.506260.5090.5270.5450.530.591280.5810.6010.2l0.6420.662300.6580.6810.7030.7260.74320.7400.7650.7900.8150.840340.827
31、O.S540.8810.9090.937360.9180.9480.9781.0081.039M1.0141.0471.0801.1131.146401.11S1.1511.!861.2231.259421.2211.2591.2981.3371.377441.3311.3731.4151.4571.SOO461.4461.4921.5371.531.628481.5661.6151.664!.7131.762501.6911.7431.7961.8481.901521.8211.8771.9331.9892.045541.9552.0152.0752.1352.195562.0942.1”2
32、.2222.2862.349582.2382.3062.3742.4422.510602.3872.4592.S312.6032.675续表检尺长，m检尺径，cm8.08.59.09.510.0材职，4I0.03820.04300.04810.05360.059460.06030.06710.07430.08190.089980.0870.0970.1060.1160.127100.1200.1310.1440.1560.170120.1S70.1710.1870.2030.219140.2U0.2340.2560.2780.301160.2650.2890.3140.3400.367180.
33、3210.3490.3780.4080.440200.3S30.4150.4480.4830.S19220.4500.4870.5250.5640.604240.5220.5640.6070.6510.697260.6000.6470.6950.7440.795280.6830.7350.7890.8440.900300.7710.8300.8890.9501.012320.8650.9300.9951.0621.131340.9651.0351.1071.1811.255361.0691.1471.2251.3051.387381.101.2641.3491.4361.525401.2951.M71.4791.5741.669
