《紙張透氣度測定儀檢定規(guī)程》技術(shù)報(bào)告

PAGEPAGE10《紙張透氣度測定儀檢定規(guī)程》標(biāo)準(zhǔn)修訂項(xiàng)目實(shí)驗(yàn)報(bào)告《紙張透氣度測定儀檢定規(guī)程》標(biāo)準(zhǔn)修訂項(xiàng)目的主要承擔(dān)單位為中國煙草標(biāo)準(zhǔn)化研究中心（以下簡稱標(biāo)準(zhǔn)化中心），項(xiàng)目的協(xié)作單位是國家煙草質(zhì)量監(jiān)督檢驗(yàn)中心、中國科學(xué)院合肥物質(zhì)科學(xué)研究院、浙江、川渝、廣東、廣西中煙工業(yè)有限責(zé)任公司、紅塔煙草（集團(tuán)）有限責(zé)任公司和廈門煙草工業(yè)有限責(zé)任公司。標(biāo)準(zhǔn)化中心和協(xié)作單位以及其它參與規(guī)程修訂工作的項(xiàng)目組成員一起對規(guī)程的操作可行性、規(guī)程中的檢定項(xiàng)目及檢定指標(biāo)要求與相關(guān)標(biāo)準(zhǔn)的一致性進(jìn)行了驗(yàn)證，以期達(dá)到科學(xué)、權(quán)威、可行的目的。目前行業(yè)內(nèi)使用的紙張透氣度測定儀主要是由國內(nèi)外四家公司生產(chǎn)的，項(xiàng)目組根據(jù)需要選取了這四家儀器公司具有代表性的10臺(tái)紙張透氣度測定儀進(jìn)行了實(shí)驗(yàn)驗(yàn)證。一、實(shí)驗(yàn)?zāi)康男滦抻喌摹都垙埻笟舛葴y定儀檢定規(guī)程》與1998版檢定規(guī)程相比，主要變化是：1、改變了紙張透氣度測定儀的測量壓力條件，增加了紙張透氣度測定儀壓力計(jì)的檢定方法；2、增加了紙張透氣度測定儀樣品夾持器密封性的計(jì)量性能要求及其檢定方法；3、增加了透氣度示值誤差的計(jì)量性能要求及其檢定方法；4、增加了透氣度測量值重復(fù)性的計(jì)量性能要求及其檢定方法。為驗(yàn)證新的檢定方法，確定了實(shí)驗(yàn)方案：1、驗(yàn)證紙張透氣度測定儀壓力計(jì)的檢定方法；2、驗(yàn)證紙張透氣度測定儀樣品夾持器密封性的檢定方法；3、驗(yàn)證透氣度示值誤差的檢定方法；4、驗(yàn)證透氣度測量值重復(fù)性的檢定方法。二、實(shí)驗(yàn)方法1、對紙張透氣度測定儀的外觀和電氣性能進(jìn)行檢查，確認(rèn)紙張透氣度測定儀符合開機(jī)要求。2、打開紙張透氣度測定儀電源，根據(jù)操作手冊要求對紙張透氣度測定儀進(jìn)行工作前準(zhǔn)備并預(yù)熱后，按照手冊步驟對紙張透氣度測定儀進(jìn)行校準(zhǔn)。3、紙張透氣度測定儀壓力計(jì)的實(shí)驗(yàn)將數(shù)字壓差計(jì)并連至紙張透氣度測定儀的壓力計(jì)處。然后密封樣品夾持器接合面，用數(shù)字壓差計(jì)對紙張透氣度測定儀的測量壓力重復(fù)測量10次。分別記錄每次測量的數(shù)字壓差計(jì)讀數(shù)和紙張透氣度測定儀的壓力計(jì)示值。每次測量都以數(shù)字壓差計(jì)讀數(shù)為標(biāo)準(zhǔn)值，計(jì)算出紙張透氣度測定儀的壓力計(jì)示值與標(biāo)準(zhǔn)值之間的差值。4、紙張透氣度測定儀樣品夾持器密封性的實(shí)驗(yàn)將皂膜流量計(jì)串聯(lián)到紙張透氣度測定儀的樣品夾持器和測量單元之間，密封樣品夾持器接合面。在皂膜流量計(jì)中引入皂泡，將皂泡調(diào)節(jié)至適當(dāng)位置，開始測定。重復(fù)測量5次，計(jì)算并記錄樣品夾持器的氣體泄漏量。5、透氣度示值誤差和透氣度測量值重復(fù)性的實(shí)驗(yàn)選取高、中、低至少三個(gè)透氣度流量盤，且流量盤的量值應(yīng)均勻分布。用紙張透氣度測定儀對每個(gè)透氣度流量盤重復(fù)測量10次。分別記錄每次測量的紙張透氣度測定儀的透氣度值。計(jì)算出每個(gè)透氣度流量盤10次測量值的平均值以及每個(gè)透氣度流量盤10次測量值的極差。以上實(shí)驗(yàn)結(jié)果見表1-表10。三、實(shí)驗(yàn)儀器根據(jù)需要選定的實(shí)驗(yàn)用的測試儀器如下：1、皂膜流量計(jì)量程應(yīng)不低于20ml，準(zhǔn)確度等級(jí)為1.0級(jí)。2、數(shù)字壓差計(jì)壓差測量范圍應(yīng)不低于2kPa，準(zhǔn)確度等級(jí)為0.1級(jí)。3、透氣度流量盤流量值在（0～50）L/min范圍內(nèi)的高、中、低至少三個(gè)透氣度流量盤，且流量盤的量值應(yīng)均勻分布，準(zhǔn)確度等級(jí)為1.5級(jí)。四、實(shí)驗(yàn)環(huán)境條件——溫度：（23±1）℃，相對濕度：（50±2）%RH，大氣壓力：（96±10）kPa。五、實(shí)驗(yàn)數(shù)據(jù)1、紙張透氣度測定儀1的實(shí)驗(yàn)數(shù)據(jù)樣品夾持器密封性（ml/min）序號(hào)12345備注氣體泄漏0.300.200.100.100.10壓力計(jì)（Pa）序號(hào)12345678910備注壓力計(jì)示值1005100410051005100510061005100510041005壓力標(biāo)準(zhǔn)值997996997997997997997997997997示值誤差和測量值重復(fù)性（L/min）流量盤標(biāo)準(zhǔn)值12345678910平均值0.0750.075480.075740.075480.07570.075380.075520.075660.075460.075660.075660.075570.5640.56280.56280.56280.56340.56280.5630.56320.56280.56320.56360.56304.4214.524.5184.524.524.5164.5184.5124.5164.5144.5124.51719.5019.64819.61219.72419.719.63819.6119.63419.63419.65419.64419.6502、紙張透氣度測定儀2的實(shí)驗(yàn)數(shù)據(jù)樣品夾持器密封性（ml/min）序號(hào)12345備注氣體泄漏0.100.080.100.100.10壓力計(jì)（Pa）序號(hào)12345678910備注壓力計(jì)示值998998997998998998998998998998壓力標(biāo)準(zhǔn)值991992991992992992992992991992示值誤差和測量值重復(fù)性（L/min）流量盤標(biāo)準(zhǔn)值12345678910平均值0.0210.020380.020240.02030.02050.020160.020260.020160.020280.020160.020160.02030.5040.51080.5110.51120.50960.50860.50860.50860.50860.50860.50860.50940.6810.77140.7720.77120.77220.7720.7720.77280.77280.77260.7720.77214.5834.654.6524.654.654.6484.6464.6464.6484.6464.6484.648424.3724.16624.16624.15424.17624.1824.20824.19624.21224.20824.1924.1863、紙張透氣度測定儀3的實(shí)驗(yàn)數(shù)據(jù)樣品夾持器密封性（ml/min）序號(hào)12345備注氣體泄漏0.120.110.120.230.29壓力計(jì)（Pa）序號(hào)12345678910備注壓力計(jì)示值1000999999999998998998998998998壓力標(biāo)準(zhǔn)值999999999998998998998998998998示值誤差和測量值重復(fù)性（L/min）流量盤標(biāo)準(zhǔn)值12345678910平均值0.0210.021860.021460.021440.021640.021660.021680.021660.021540.020340.021640.02150.5040.50580.5060.50640.50660.50660.50680.50680.5070.50720.5070.50660.681///////////4.583///////////24.3723.9423.9223.9323.92623.90823.92223.92623.91423.9123.9323.9234、紙張透氣度測定儀4的實(shí)驗(yàn)數(shù)據(jù)樣品夾持器密封性（ml/min）序號(hào)12345備注氣體泄漏0.100.050.050.100.10壓力計(jì)（Pa）序號(hào)12345678910備注壓力計(jì)示值9979979999989991000998997999999壓力標(biāo)準(zhǔn)值994994994993995996995993995996示值誤差和測量值重復(fù)性（L/min）流量盤標(biāo)準(zhǔn)值12345678910平均值0.0750.074170.074240.074290.074110.074130.074270.074290.074420.074110.074350.074230.5640.56360.56350.56340.56360.56420.56290.56390.56360.56290.56330.56354.421///////////19.50///////////5、紙張透氣度測定儀5的實(shí)驗(yàn)數(shù)據(jù)樣品夾持器密封性（ml/min）序號(hào)12345備注氣體泄漏0.200.050.150.150.20壓力計(jì)（Pa）序號(hào)12345678910備注壓力計(jì)示值9991001100299810011001999999998999壓力標(biāo)準(zhǔn)值995997997993996996994994993994示值誤差和測量值重復(fù)性（L/min）流量盤標(biāo)準(zhǔn)值12345678910平均值0.0210.02080.02090.02090.0210.0210.021060.021060.021040.021280.021280.02100.5040.50980.50960.51020.51040.51040.51060.51060.5110.51120.5110.51050.6810.69040.69040.69020.69060.6910.69080.69120.69120.6910.69120.69084.5834.4784.4824.484.4824.4844.4864.4864.4884.494.4924.484824.3724.39224.3724.34824.34424.3424.31224.31424.31824.28424.3724.3396、紙張透氣度測定儀6的實(shí)驗(yàn)數(shù)據(jù)樣品夾持器密封性（ml/min）序號(hào)12345備注氣體泄漏0.400.400.300.400.30壓力計(jì)（Pa）序號(hào)12345678910備注壓力計(jì)示值100210011001100210001000100110009991000壓力標(biāo)準(zhǔn)值1001100010001001999999999998998999示值誤差和測量值重復(fù)性（L/min）流量盤標(biāo)準(zhǔn)值12345678910平均值0.0210.02140.02120.02180.0210.02080.02140.0210.02180.02120.02160.02130.5040.50760.50760.50780.50740.50780.50760.50720.5070.50760.50780.50750.6810.68620.6860.68580.68620.68580.68560.68540.68580.6860.68580.68594.5834.6484.6464.6444.6464.6424.6444.6464.644.6444.6424.644224.3724.4224.4124.3924.4424.4124.4624.4424.4224.4924.4524.43307、紙張透氣度測定儀7的實(shí)驗(yàn)數(shù)據(jù)樣品夾持器密封性（ml/min）序號(hào)12345備注氣體泄漏0.200.300.500.400.40壓力計(jì)（Pa）序號(hào)12345678910備注壓力計(jì)示值1002100210021003100110021001100110001001壓力標(biāo)準(zhǔn)值10001000100010009999991000998998998示值誤差和測量值重復(fù)性（L/min）流量盤標(biāo)準(zhǔn)值12345678910平均值0.0210.02060.02080.02080.0210.02080.02040.0210.02080.02060.02060.02070.5040.50360.50360.50380.50340.50380.50360.50320.5030.50360.50380.50350.6810.68420.6840.68480.68420.68480.68460.68440.68480.6840.68480.68454.5834.6184.6144.6144.6164.6184.6144.6164.614.6144.6124.614624.3724.3924.3824.3624.4124.4124.4224.4124.3924.4624.4424.40708、紙張透氣度測定儀8的實(shí)驗(yàn)數(shù)據(jù)樣品夾持器密封性（ml/min）序號(hào)12345備注氣體泄漏0.100.050.100.100.15壓力計(jì)（Pa）序號(hào)12345678910備注壓力計(jì)示值1001100110011001100110011001100110011001壓力標(biāo)準(zhǔn)值1005100510051006100510051006100610051005示值誤差和測量值重復(fù)性（L/min）流量盤標(biāo)準(zhǔn)值12345678910平均值0.1430.1420.1420.1420.1420.1420.1420.1420.1420.1420.1420.1420.3660.36220.36200.36220.36220.36220.36220.36220.36200.36200.36220.36227.627.79527.79507.79427.79467.79267.79387.79727.79327.79127.79587.794322.95///////////9、紙張透氣度測定儀9的實(shí)驗(yàn)數(shù)據(jù)樣品夾持器密封性（ml/min）序號(hào)12345備注氣體泄漏0.600.500.700.800.60壓力計(jì)（Pa）序號(hào)12345678910備注壓力計(jì)示值1004100310031003100210021003100210021003壓力標(biāo)準(zhǔn)值999998999998997996999998998999示值誤差和測量值重復(fù)性（L/min）流量盤標(biāo)準(zhǔn)值12345678910平均值0.5560.5610.560.5610.5620.5610.5630.5620.5610.5620.5610.56149.459.499.4939.4989.4969.5029.4989.5069.4969.4989.5029.497933.4633.56233.58433.57633.59433.60233.58833.59633.633.58433.59833.588410、紙張透氣度測定儀1的實(shí)驗(yàn)數(shù)據(jù)樣品夾持器密封性（ml/min）序號(hào)12345備注氣體泄漏1.101.201.051.151.30壓力計(jì)（Pa）序號(hào)12345678910備注壓力計(jì)示值999998999998999100099910019991000壓力標(biāo)準(zhǔn)值1012101310131012101210141013101410131012示值誤差和測量值重復(fù)性（L/min）流量盤標(biāo)準(zhǔn)值12345678910平均值0.0870.0900.0900.0910.0900.0910.0900.0910.0900.0900.0910.09040.2680.2730.2750.2740.27