糧油檢驗 稻谷出糙率檢驗法編制說明

PAGEPAGE4《稻谷出糙率檢驗法》編制說明（送審稿）一、前言稻谷“出糙率”是《稻谷》國家標(biāo)準(zhǔn)中重要的質(zhì)量指標(biāo)之一，該指標(biāo)的設(shè)置對于促進(jìn)稻谷質(zhì)量品質(zhì)的提高發(fā)揮了重要的作用。原稻谷出糙率檢驗方法隨著《稻谷》國家標(biāo)準(zhǔn)的更新，有必要進(jìn)一步完善，制定規(guī)范的出糙率檢驗的國家標(biāo)準(zhǔn)方法。二、修訂原則為適應(yīng)社會主義市場經(jīng)濟體制、進(jìn)一步深化改革的總體要求，為市場服務(wù)、為企業(yè)服務(wù)。遵循標(biāo)準(zhǔn)要有良好的適應(yīng)性、可行性、方便性的原則。三、工作情況聯(lián)合秈稻谷和粳稻谷主產(chǎn)省質(zhì)檢機構(gòu)，各選擇10個有代表性秈稻谷和粳稻谷樣品，出糙稻谷重量分別為原標(biāo)準(zhǔn)的20g和擬修訂的10～15g，做對比試驗。對測試結(jié)果進(jìn)行分析，確定出糙稻谷重量。四、標(biāo)準(zhǔn)的主要技術(shù)思路1．統(tǒng)一和優(yōu)化檢驗的技術(shù)要求；2．將本標(biāo)準(zhǔn)與《稻谷整精米率檢驗法》國家標(biāo)準(zhǔn)相統(tǒng)一；3．提高檢驗速率和時效性。五、主要技術(shù)（特點）要求1．通過遼寧、湖北兩省所作的對比試驗。對粳稻谷和秈稻谷，10g出糙稻谷重組的出糙率標(biāo)準(zhǔn)偏差最大值為0.4545，3倍的標(biāo)準(zhǔn)偏差值為1.3635而《稻谷》標(biāo)準(zhǔn)中出糙率等級差2.0%。同一試驗樣品兩對照組出糙率極差最大值為0.5%，平均值為0.20%，遠(yuǎn)低于現(xiàn)出糙率標(biāo)準(zhǔn)中規(guī)定的0.5%誤差范圍。所以可以認(rèn)為在減少樣品重量，能夠保證檢驗的一致性，并且加快了檢驗速度。數(shù)據(jù)見表1、表2及附件。表1粳稻谷出糙率數(shù)據(jù)對比樣品編號10g20g均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B極差值1#83.90.35610.424484.30.14180.16820.42#80.80.14590.180680.60.01860.02310.23#81.30.05490.067681.30.16260.20010.14#81.20.06840.084381.20.10980.13530.05#82.40.20060.243582.60.08210.09940.16#82.40.11440.138982.70.05250.06350.37#82.10.12300.149981.80.01540.01890.38#81.30.12100.148781.80.10560.12900.59#82.10.14620.178081.90.14390.17580.310#81.60.11010.134881.50.15550.19070.1平均值0.14410.17510.09880.12040.22表2秈稻谷出糙率數(shù)據(jù)對比樣品編號10g20g出糙率均值標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A出糙率均值標(biāo)準(zhǔn)偏差B變異系數(shù)B極差值1#76.40.15820.207176.50.41090.53680.22#82.00.45450.554082.10.12490.15210.13#78.40.14980.191278.60.11460.14580.24#79.10.26030.329279.20.03870.04880.25#78.90.11220.142179.10.15340.19390.26#78.50.17320.220778.60.15860.20180.17#78.10.18810.240778.10.48620.62270.18#78.90.19450.246579.10.28820.36440.29#85.30.16590.194585.00.09030.10630.310#77.60.21270.274378.00.12070.15480.4平均值0.20690.26000.19860.25270.182.修訂內(nèi)容項目稱樣量，克原標(biāo)準(zhǔn)20擬修訂10～153．增加了與方法相關(guān)的術(shù)語和定義。4．新標(biāo)準(zhǔn)一經(jīng)實施，代替現(xiàn)行的國家標(biāo)準(zhǔn)GB/T5495-85。附件：1稻谷出糙率檢驗法驗證實驗結(jié)果記錄表測試單位:遼寧省糧油檢驗監(jiān)測所測試用設(shè)備型號：JLGJ4.5測試時間:2008樣品名稱1#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)10.2010.1510.1610.170.0260.260220.6920.6320.5420.620.07550.3661糙米重(my,g)8.648.628.678.640.02520.291217.6017.4917.4917.530.06350.3624不完善粒重(mw,g)0.240.140.280.220.072132.77770.270.260.320.280.032111.3455完善粒(m,g)8.408.488.398.420.04930.585617.3317.2317.1717.240.08080.4688出糙率/%83.584.284.083.90.35610.424484.484.184.484.30.14180.1682樣品名稱2#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)10.5410.0210.3910.320.2682.594320.2220.0520.0920.120.08890.4418糙米重(my,g)8.738.388.628.580.17902.086816.9316.5416.7416.740.19501.1652不完善粒重(mw,g)0.450.590.420.490.090718.64471.260.751.101.040.260825.1606完善粒(m,g)8.287.798.208.090.26293.249315.6715.7915.6415.700.07940.5056出糙率/%80.780.780.980.80.14590.180680.680.680.680.60.01860.0231樣品名稱3#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)10.0810.0410.5810.230.3012.940320.1720.0520.0420.090.07230.3601糙米重(my,g)8.418.308.818.510.26843.155116.7916.6416.6416.690.08660.5189不完善粒重(mw,g)0.430.280.400.370.079421.45200.820.750.640.740.090712.3173完善粒(m,g)7.988.028.418.140.23762.919615.9715.8916.0015.950.05690.3564出糙率/%81.381.381.481.30.05490.067681.281.181.481.30.16260.2001樣品名稱4#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)10.2810.3410.4310.350.0750.729520.0420.0620.1120.070.03610.1796糙米重(my,g)8.578.638.768.650.09711.122416.6716.8116.7016.730.07370.4407不完善粒重(mw,g)0.460.460.600.510.080815.95310.841.060.700.870.181520.9395完善粒(m,g)8.118.178.168.150.03210.394615.8315.7516.0015.860.12770.8050出糙率/%81.181.281.181.20.06840.084381.181.281.381.20.10980.1353樣品名稱5#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)10.0810.0010.0310.040.0400.402720.0220.0320.0120.020.01000.0500糙米重(my,g)8.438.378.378.390.03460.412916.7116.7316.7016.710.01530.0914不完善粒重(mw,g)0.200.270.240.240.035114.83890.400.360.350.370.02657.1507完善粒(m,g)8.238.108.138.150.06810.834916.3116.3716.3516.340.03060.1869出糙率/%82.682.482.382.40.20060.243582.582.682.682.60.08210.0994樣品名稱6#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)10.0310.0110.0510.030.0200.199420.0520.0020.0620.040.03210.1604糙米重(my,g)8.398.388.388.380.00580.068916.8416.7816.8116.810.03000.1785不完善粒重(mw,g)0.260.250.230.250.01536.19270.530.460.460.480.04048.3616完善粒(m,g)8.138.138.158.140.01150.141916.3116.3216.3516.330.02080.1275出糙率/%82.482.582.282.40.11440.138982.782.882.782.70.05250.0635樣品名稱7#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)10.0010.0110.0310.010.0150.152520.0420.0620.0120.040.02520.1256糙米重(my,g)8.408.388.378.380.01530.182216.7416.7616.7216.740.02000.1195不完善粒重(mw,g)0.360.330.300.330.03009.09090.690.700.690.690.00580.8327完善粒(m,g)8.048.058.078.050.01530.189716.0516.0616.0316.050.01530.0952出糙率/%82.282.182.082.10.12300.149981.881.881.881.80.01540.0189樣品名稱8#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)10.0210.0210.0110.020.0060.057620.0120.0020.0120.010.00580.0289糙米重(my,g)8.298.308.278.290.01530.184316.6016.6216.5716.600.02520.1516不完善粒重(mw,g)0.290.270.270.280.01154.17360.400.520.420.450.064314.3935完善粒(m,g)8.008.038.008.010.01730.216216.2016.1016.1516.150.05000.3096出糙率/%81.381.581.381.30.12100.148782.081.881.881.80.10560.1290樣品名稱9#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)10.0210.0010.0110.010.0100.099920.0220.0020.0020.010.01150.0577糙米重(my,g)8.368.378.358.360.01000.119616.7016.7016.6716.690.01730.1038不完善粒重(mw,g)0.250.350.240.280.060821.72420.580.630.660.620.04046.4836完善粒(m,g)8.118.028.118.080.05200.643116.1216.0716.0116.070.05510.3428出糙率/%82.282.082.282.10.14620.178082.081.981.781.90.14390.1758樣品名稱10#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)10.0210.0310.0110.020.0100.099820.0120.0020.0020.000.00580.0289糙米重(my,g)8.288.318.298.290.01530.184216.6316.5816.6016.600.02520.1516不完善粒重(mw,g)0.220.220.240.230.01155.09430.560.600.590.580.02083.5686完善粒(m,g)8.068.098.058.070.02080.258116.0715.9816.0116.020.04580.2861出糙率/%81.581.881.681.60.11010.134881.781.481.581.50.15550.1907稻谷出糙率檢驗法驗證實驗結(jié)果記錄表測試單位:湖北省糧油檢驗監(jiān)測所測試用設(shè)備型號：測試時間:2008樣品名稱1#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)12.7312.7412.7012.720.0210.163620.0020.0120.0120.010.00580.0289糙米重(my,g)9.809.839.809.810.01730.176615.4215.5115.4415.460.04730.3057不完善粒重(mw,g)0.180.210.150.180.030016.66670.350.200.300.280.076426.9563完善粒(m,g)9.629.629.659.630.01730.179915.0715.3115.1415.170.12340.8134出糙率/%76.376.376.676.40.15820.207176.277.076.476.50.41090.5368樣品名稱2#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)12.7212.6312.6812.680.0450.355720.0220.0220.0220.020.00000.0000糙米重(my,g)10.6210.5010.5410.550.06110.579016.6816.6316.6416.650.02650.1589不完善粒重(mw,g)0.240.360.330.310.062420.14520.430.380.450.420.03618.5846完善粒(m,g)10.3810.1410.2110.240.12341.204916.2516.2516.1916.230.03460.2134出糙率/%82.581.781.882.00.45450.554082.282.182.082.10.12490.1521樣品名稱3#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)12.7512.7012.7312.730.0250.197720.0020.0020.0020.000.00000.0000糙米重(my,g)10.1710.1410.1610.160.01530.150415.9616.0016.0015.990.02310.1445不完善粒重(mw,g)0.310.400.380.360.047313.00680.460.630.570.550.086215.5813完善粒(m,g)9.869.749.789.790.06110.623915.5015.3715.4315.430.06510.4216出糙率/%78.578.378.378.40.14980.191278.778.478.678.60.11460.1458樣品名稱4#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)12.6912.6312.6512.660.0310.241420.0220.0220.0020.010.01150.0577糙米重(my,g)10.1410.0610.0810.090.04160.412515.9815.9815.9515.970.01730.1085不完善粒重(mw,g)0.140.170.210.170.035120.26090.250.220.200.220.025211.2684完善粒(m,g)10.009.899.879.920.07000.705615.7315.7615.7515.750.01530.0970出糙率/%79.479.078.979.10.26030.329279.279.379.379.20.03870.0488樣品名稱5#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)12.7812.7412.7512.760.0210.163220.0120.0220.0020.010.01000.0500糙米重(my,g)10.2810.2110.2310.240.03610.352116.0816.1816.0916.120.05510.3417不完善粒重(mw,g)0.360.340.330.340.01534.44910.540.620.580.580.04006.8966完善粒(m,g)9.929.879.909.900.02520.254315.5415.5615.5115.540.02520.1620出糙率/%79.078.878.978.90.11220.142179.079.379.079.10.15340.1939樣品名稱6#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)12.7312.7412.7112.730.0150.120020.0220.0020.0020.010.01150.0577糙米重(my,g)10.0310.0310.0310.030.00000.000015.8115.7415.7815.780.03510.2226不完善粒重(mw,g)0.060.120.090.090.030033.33330.080.090.150.110.037935.4932完善粒(m,g)9.979.919.949.940.03000.301815.7315.6515.6315.670.05290.3377出糙率/%78.678.378.678.50.17320.220778.878.578.578.60.15860.2018樣品名稱7#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)12.7212.7312.7012.720.0150.120120.0020.0220.0220.010.01150.0577糙米重(my,g)10.2010.1610.1510.170.02650.260215.9916.1016.0316.040.05570.3471不完善粒重(mw,g)0.580.400.430.470.096420.51840.950.750.790.830.105812.7506完善粒(m,g)9.629.769.729.700.07210.743415.0415.3515.2415.210.15721.0333出糙率/%77.978.278.278.10.18810.240777.678.578.178.10.48620.6227樣品名稱8#項目測試1測試2測試3均值A(chǔ)標(biāo)準(zhǔn)偏差A(yù)變異系數(shù)A測試1測試2測試3均值B標(biāo)準(zhǔn)偏差B變異系數(shù)B凈稻谷重(mj,g)12.7312.7112.7412.730.0150.120020.0020.0220.0220.010.01150.0577糙米重(my,g)10.2510.2010.2710.240.03610.352116.0216.1616.1316.100.07370.4577不完善粒重(mw,g)0.380.400.410.400.01533.85090.480.520.650.5