瓶装液化石油气净含量技术要求

1、.目次 前言I1 范围12 标准性引用文件13 术语和定义14 符号和说明25 要求26 检验方法47 检验规那么5附录A7附录B9附录C 资料性附录气瓶中气态石油气重量修正表YSP-26.2型11附录D 资料性附录气瓶中气态石油气重量修正表YSP-23.5型13附录E 资料性附录气瓶中气态石油气重量修正表YSP-12型15附录F 资料性附录气瓶中气态石油气重量修正表YSP-4.7型17附录G 资料性附录液化石油气钢瓶瓶重和残液量检验原始记录19附录H 资料性附录瓶装液化石油气净含量计量检验原始记录20附录I 资料性附录液化石油气钢瓶瓶重标注方法21. v.瓶装液化石油气净含量技术要求1 范围

2、本标准规定了对瓶装液化石油气净含量的技术要求及检验方法，对使用中的液化石油气钢瓶瓶重和残液量的技术要求及检验方法。本标准适用于瓶装液化石油气充装，对液化石油气钢瓶瓶重和残液量的计量监视检验，对瓶装液化石油气净含量的计量监视检验，委托检验可参考本标准进展。2 标准性引用文件以下文件对于本文件的应用是必不可少的。但凡注日期的引用文件，仅所注日期的版本适用于本文件。但凡不注日期的引用文件，其最新版本包括所有的修改单适用于本文件。GB 5842 液化石油气钢瓶ISO 4706GB 17267 液化石油气瓶充装站平安技术条件JJF 1070 定量包装商品净含量计量检验规那么定量包装商品计量监视管理方法国

3、家质量监视检验检疫总局令第75号3 术语和定义JJF 1070 中确立的以及以下术语和定义适用于本标准。瓶装液化石油气 bottled liquefied petroleum gas以销售为目的，在一定量限范围内具有统一的质量标注，使用专用钢瓶重复盛装的液化石油气产品。同种瓶装液化石油气 same kind bottled liquefied petroleum gas由同一充装单位充装，标注净含量、盛装钢瓶规格均一样的瓶装液化石油气。注： 本标准中的瓶装液化石油气充装单位，即是瓶装液化石油气的生产者。检验批 inspection lot在瓶装液化石油气充装站厂内，成品区或运输工具上已灌装、检

4、验、封口完毕的同种瓶装液化石油气的全体为检验批；在瓶装液化石油气销售门市，同种瓶装液化石油气的全体为检验批。总重 tolal weight 瓶装液化石油气钢瓶、液化石油气和残液的总质量。瓶重 cylinder weight检验环境下，钢瓶内含有一个大气压气态石油气的钢瓶质量含角阀等固定安装的部件，不含防撞胶圈等非固定安装的部件。残液量 residue liquid weight检验环境下，不能正常燃烧的残留物的质量。净含量 net quantity液化石油气充装单位当次充装在钢瓶中的液化石油气的质量。标注净含量 nominal quantity瓶装液化石油气充装单位在瓶上明示的净含量。4 符号

5、和说明本标准使用的符号和说明见表1。表1 符号和说明符号单位说明W pyqkg瓶重、残液和气态石油气重量质量之和Wpqkg瓶重和气态石油气重量质量之和Wpykg瓶重与残液重量质量之和Wpykg瓶重和残液综合偏差Wykg残液量Wp0kg标注瓶重Wpkg瓶重Wpkg瓶重偏差Wzkg总重qkg净含量Wq，Wq1，Wq2kg被检瓶内剩余气态石油气重量质量修正值P，P1，P2MPa瓶内剩余压力表压P0MPa标准大气压。取0.101MPa。0kg/m30时液化石油气密度。为简化计算，取其主要成分丙烷2.02kg/m3、正丁烷2.60kg/m3、异丁烷2.67kg/m3按2:1:1配比，为2.33kg/m3

6、。Vm3气瓶标称容积。YSP-118 型为0.1180m3； YSP-35.5型为 0.0355m3； YSP-26.2型为 0.0262m3；YSP-23.5型为0.0235m3； YSP-12 型为 0.0120m3； YSP-4.7 型为 0.0047m3。t瓶内气态石油气温度。由于难以测量且影响量较小，一般用气温代替。kg样本平均净含量Qnkg标注净含量kg修正因子skg样本净含量标准偏差N瓶检验批量n瓶抽样瓶数5 要求5.1 总那么瓶装液化石油气是定量包装商品。瓶装液化石油气和液化石油气钢瓶在符合有关产品平安、质量标准的前提下，必须同时符合"定量包装商品计量监视管理方法&q

7、uot;和本标准的净含量计量要求。5.2 净含量标注瓶装液化石油气充装单位应当在钢瓶的显著位置正确、清晰地标注净含量。净含量的标注由“净含量中文、数字和法定计量单位三个局部组成。法定计量单位应选择“kg或“千克。净含量应按表2的要求标注，标注字符高度应不小于6mm。5.3 瓶重标注a) 瓶装液化石油气充装单位应对钢瓶逐瓶称重并按3.5的定义标注实际瓶重。注： 瓶重标注的方法可参考附录I。b) 瓶重标注在钢瓶的上封头上，应采用油漆等不易脱落的形式，标注由：“瓶重中文、数字和法定计量单位三局部组成。瓶重标注的小数位数应符合表2的规定，计量单位应选择“kg或“千克。瓶重标注字符高度应不小于10mm。

8、c) 瓶重标注的偏差应在表2规定的允许偏差范围内。d) 充装单位至少每年应对瓶重标注进展一次检查，标注不清晰或超过偏差的应重新标注。5.4 残液量每次充装前的残液量应不超过表2的规定。5.5 净含量单瓶瓶装液化石油气的标注净含量与实际含量之差不得大于表2规定的允许短缺量，且不得大于 GB 17267和GB 5842的平安要求；批量瓶装液化石油气的平均实际含量应当大于或等于其标注净含量。表2 钢瓶和瓶装液化石油气技术要求钢瓶型号a标 注净含量kg钢瓶瓶重标注的小数位数位钢瓶瓶重和残液综合允许偏差kg钢瓶瓶重标注允许偏差kg残 液允许量kg单瓶瓶装液化石油气允许短缺量kgYSP-4.71.92-0

9、.060.12±0.060.060.1YSP-124.82-0.10.2±0.10.10.2YSP-23.59.51-0.20.4±0.20.20.3YSP-26.210.61-0.20.4±0.20.20.4YSP-35.514.51-0.20.4±0.20.20.5YSP-11849.01-0.40.8±0.40.41.0a 本标准中的钢瓶型号采用 GB 5842 的表示方法，其与 GB 17267 中的表示方法对应关系如下括号中为 GB 17267 中对应的表示方式：YSP-4.7YSP-2，YSP-12YSP-5，YSP-23

10、.5YSP-10，YSP-26.2无，YSP-35.5YSP-15，YSP-118YSP-50。5.6 充装管理瓶装液化石油气充装单位应在充装站厂内设置检瓶区、充装区、成品区和不合格瓶区，不同区域应有明显标志划分。待充装的空瓶应先在检瓶区检查残液量和瓶重，符合要求的钢瓶方可进入充装区；残液量超过允许量的钢瓶应做抽残液处理，瓶重标注偏差超过允许偏差的应重新标注。5.7 检验设备5.7.1 主要检验设备符合防爆要求的秤，其最大秤量应不小于相应规格的瓶装液化石油气总重的120%，其最大允许误差绝对值应不大于相应规格钢瓶瓶重标注允许偏差绝对值的1/5。5.7.2 辅助检验设备a) 瓶装液化石油气净含量

11、检测抽灌机或使用充装站厂抽残液的设备；b) 温度计，测量范围-1050，分度值1；c) 真空压力表带灌装枪接头，测量范围-0.11.5MPa，1.6级 ；d) 钢直尺，分度值1mm；或游标卡尺，分度值0.1mm。5.8 检验环境条件瓶装液化石油气净含量和钢瓶瓶重检验应在-1040环境下进展。6 检验方法6.1 单个钢瓶瓶重标注检查，残液量和瓶重偏差的检验6.1.1 检查和检验步骤a) 根据5.3的要求，检查钢瓶瓶重标注内容和计量单位，使用钢直尺或游标卡尺测量标注字符高度。b) 用温度计测量气温，记为t。c) 检查钢瓶，假设有防撞胶圈等非固定安装的部件或附着物，应去除。d) 用秤称瓶重，记为Wp

12、yq；将带灌装枪接头的真空压力表连接在钢瓶的角阀上，翻开角阀和灌装枪上的阀门，用真空压力表测量瓶内剩余压力P1。e) 使用抽残液的设备或瓶装液化石油气净含量检测抽灌机逐个抽钢瓶中的残液；确认抽空后，称瓶重，记为 Wpq ；测量瓶内剩余压力P2。6.1.2 数据处理瓶重与残液量的和 Wpy 、瓶重 Wp 和残液量 Wy 分别按式1、式2和式3计算：Wpy = Wpyq - Wq11Wp = Wpq - Wq22Wy = Wpy- Wp3瓶重偏差Wp按式4计算：Wp = Wp - Wp04瓶重和残液综合偏差Wpy按式5计算：Wpy = Wpy - Wp0 5其中 Wq1和 Wq2按式6计算：6根据

13、公式6和有关参数编制“气瓶中气态石油气重量修正表附录AF，在现场可快速查表确定Wq ，查表时假设实际温度、压力介于两数值之间的选择最接近的数值查表。6.2 净含量标注检查根据5.2的要求，检查瓶装液化石油气净含量标注内容和计量单位，使用钢直尺或游标卡尺测量标注字符高度。6.3 净含量计量检验常规6.3.1 检验步骤a) 检查钢瓶，假设有防撞胶圈等非固定安装的部件或附着物，应去除。b) 用秤逐瓶称总重，记为Wz。c) 记录每瓶标注瓶重Wp0 ：1) 已按本标准5.3要求标注瓶重的，采用钢瓶封头上的瓶重标注，不采用钢瓶护罩钢印标记上的钢瓶瓶重标注；2) 暂未按本标准5.3要求标注瓶重的，采用钢瓶护

14、罩钢印标记上的钢瓶瓶重标注。6.3.2 数据处理单瓶瓶装液化石油气净含量q按式7计算：q= Wz - Wp0 76.4 净含量计量检验仲裁6.4.1 检验步骤a) 用温度计测量气温，记为t。b) 用秤逐瓶称总重，记为Wz。c) 使用抽残液的设备或瓶装液化石油气净含量检测抽灌机抽钢瓶中的液化石油气。d) 确认抽空后，称瓶重，记为Wpq，测量瓶内剩余压力P。6.4.2 数据处理单瓶瓶装液化石油气净含量按下式计算：q= Wz - Wp = Wz - Wpq + Wq8其中 Wq 按式6计算。7 检验规那么7.1 瓶重和残液量检验7.1.1 用抽样的方法评定一个检验批的瓶重或残液量，应按表3规定进展抽

15、样检验，样本中单瓶超过瓶重标注偏差的瓶数以及单瓶超过残液允许量的瓶数应当符合表3的规定。表3 瓶重和残液量计量检验抽样方案检验批量N抽样瓶数n瓶重要求残液要求允许大于1倍，小于或等于2倍瓶重允许偏差的瓶数允许大于2倍瓶重允许偏差的瓶数允许大于1倍，小于或等于2倍残液允许量的瓶数允许大于2倍残液允许量的瓶数110N0000115010000051991310101005005030305013200805050大于320012570707.1.2 瓶装液化石油气充装站厂的充装区内待充装的钢瓶，按7.1.1的要求采用随机抽样法抽样，按6.1的方法检验每一个样本，其标注应符合5.3的要求；瓶重和残液

16、量应符合以下要求：a 假设单个钢瓶瓶重和残液综合偏差Wpy已在钢瓶瓶重标注允许偏差范围内，那么认为该钢瓶已符合5.3和5.4的要求，可不再继续检测其瓶重偏差和残液量。b 假设单个钢瓶瓶重和残液综合偏差Wpy已超过钢瓶瓶重和残液综合允许偏差下限的2倍，那么认为该钢瓶瓶重偏差大于2倍允许偏差，不符合5.3的要求；假设瓶重和残液综合偏差Wpy已超过钢瓶瓶重和残液综合允许偏差上限的2倍，那么认为该钢瓶瓶重偏差大于2倍允许偏差，残液量大于2倍允许量，不符合5.3和5.4的要求；可不再继续检测其瓶重偏差和残液量。c 上述a和b情况以外的，应按6.1的方法检测瓶重偏差和残液量。d 瓶重偏差应符合5.3和7.

17、1.1的要求，残液量应符合5.4和7.1.1的要求。7.2 净含量计量检验7.2.1 用抽样的方法评定一个检验批的瓶装液化石油气，应当按表4规定进展抽样检验和计算。样本中单瓶的标注净含量与其实际含量之差大于允许短缺量的瓶数以及样本的平均实际含量应当符合表4的规定。表4 净含量计量检验抽样方案检验批量N抽样瓶数n样本平均实际含量修正值·s允许大于1倍，小于或等于2倍允许短缺量T1类短缺的瓶数允许大于2倍允许短缺量T2类短缺的瓶数修正因子样本实际含量标准偏差s110N/001150101.028s005199130.848s10100500500.379s305013200800.295

18、s50大于32001250.234s70样本平均净含量应当大于或等于标注净含量减去样本平均实际含量修正值·s，即Qn-·s式中： -样本平均净含量 Qn标注净含量 修正因子 s样本净含量标准偏差注： 本抽样方案对于批量为110件的瓶装液化石油气，只对单件瓶装液化石油气的实际含量进展检验，不作平均实际含量的计算。7.2.2 按7.2.1的要求采用随机抽样的方法，在检验批中抽取样本，对检验样本进展编号。7.2.3 按6.2的方法检查净含量标注，应符合5.2的要求。7.2.4 根据检验性质，按6.3或6.4的方法检验液化石油气净含量，应符合7.2.1的要求。资料性附录气瓶中气态石

19、油气重量修正表YSP-118型kg压力MPa温度-10-50510152025303540-0.10-0.28-0.28-0.27-0.27-0.26-0.26-0.25-0.25-0.25-0.24-0.24-0.08-0.23-0.22-0.22-0.21-0.21-0.21-0.20-0.20-0.20-0.19-0.19-0.06-0.17-0.17-0.16-0.16-0.16-0.15-0.15-0.15-0.15-0.14-0.14-0.04-0.11-0.11-0.11-0.11-0.11-0.10-0.10-0.10-0.10-0.10-0.09-0.02-0.06-0.06

20、-0.05-0.05-0.05-0.05-0.05-0.05-0.05-0.05-0.050.000.000.000.000.000.000.000.000.000.000.000.000.020.060.060.050.050.050.050.050.050.050.050.050.040.110.110.110.110.110.100.100.100.100.100.090.060.170.170.160.160.160.150.150.150.150.140.140.080.230.220.220.210.210.210.200.200.200.190.190.100.280.280.2

21、70.270.260.260.250.250.250.240.240.120.340.330.330.320.320.310.300.300.290.290.280.140.400.390.380.370.370.360.360.350.340.340.330.160.450.440.440.430.420.410.410.400.390.390.380.180.510.500.490.480.470.460.460.450.440.430.430.200.570.550.540.530.530.520.510.500.490.480.470.220.620.610.600.590.580.5

22、70.560.550.540.530.520.240.680.670.650.640.630.620.610.600.590.580.570.260.730.720.710.700.680.670.660.650.640.630.620.280.790.780.760.750.740.720.710.700.690.680.660.300.850.830.820.800.790.770.760.750.740.720.710.320.900.890.870.860.840.830.810.800.780.770.760.340.960.940.930.910.890.880.860.850.8

23、30.820.810.361.021.000.980.960.950.930.910.900.880.870.850.381.071.051.031.021.000.980.960.950.930.920.900.401.131.111.091.071.051.031.011.000.980.970.950.421.191.161.141.121.101.081.071.051.031.011.000.441.241.221.201.181.161.141.121.101.081.061.040.461.301.281.251.231.211.191.171.151.131.111.090.4

24、81.361.331.311.281.261.241.221.201.181.161.140.501.411.391.361.341.311.291.271.251.231.211.190.521.471.441.421.391.371.341.321.301.281.251.230.541.531.501.471.441.421.391.371.351.321.301.280.561.581.551.521.501.471.451.421.401.371.351.330.581.641.611.581.551.521.501.471.451.421.401.380.601.701.661.6

25、31.601.581.551.521.501.471.451.420.621.751.721.691.661.631.601.571.551.521.501.470.641.811.771.741.711.681.651.621.601.571.541.520.661.861.831.801.761.731.701.671.651.621.591.570.681.921.891.851.821.791.751.721.701.671.641.610.701.981.941.911.871.841.811.781.751.721.691.660.722.032.001.961.921.891.8

26、61.831.801.771.741.710.742.092.052.011.981.941.911.881.851.811.791.760.762.152.112.072.032.001.961.931.901.861.831.800.782.202.162.122.092.052.011.981.951.911.881.850.802.262.222.182.142.102.062.032.001.961.931.900.822.322.272.232.192.152.122.082.042.011.981.950.842.372.332.292.252.212.172.132.092.0

27、62.031.990.862.432.382.342.302.262.222.182.142.112.082.040.882.492.442.402.352.312.272.232.192.162.122.090.902.542.502.452.412.362.322.282.242.212.172.140.922.602.552.502.462.422.372.332.292.262.222.180.942.662.612.562.512.472.432.382.342.312.272.230.962.712.662.612.572.522.482.432.392.352.322.280.9

28、82.772.722.672.622.572.532.492.442.402.362.331.002.832.772.722.672.632.582.542.492.452.412.371.022.882.832.782.732.682.632.592.542.502.462.421.042.942.882.832.782.732.682.642.592.552.512.471.063.002.942.892.832.782.742.692.642.602.562.521.083.052.992.942.892.842.792.742.692.652.612.561.103.113.052.9

29、92.942.892.842.792.742.702.652.611.123.163.113.052.992.942.892.842.792.752.702.661.143.223.163.103.052.992.942.892.842.802.752.711.163.283.223.163.103.052.992.942.892.852.802.751.183.333.273.213.153.103.042.992.942.892.852.801.203.393.333.273.213.153.103.042.992.942.902.851.223.453.383.323.263.203.1

30、53.093.042.992.942.901.243.503.443.383.313.263.203.153.093.042.992.941.263.563.493.433.373.313.253.203.143.093.042.991.283.623.553.483.423.363.303.253.193.143.093.041.303.673.603.543.483.413.353.303.243.193.143.091.323.733.663.593.533.473.413.353.293.243.183.131.343.793.723.653.583.523.463.403.343.2

31、93.233.181.363.843.773.703.643.573.513.453.393.343.283.231.383.903.833.763.693.623.563.503.443.383.333.281.403.963.883.813.743.683.613.553.493.433.383.32资料性附录气瓶中气态石油气重量修正表YSP-35.5型kg压力MPa温度-10-50510152025303540-0.10-0.09-0.08-0.08-0.08-0.08-0.08-0.08-0.08-0.07-0.07-0.07-0.08-0.07-0.07-0.07-0.06-0.06

32、-0.06-0.06-0.06-0.06-0.06-0.06-0.06-0.05-0.05-0.05-0.05-0.05-0.05-0.05-0.05-0.04-0.04-0.04-0.04-0.03-0.03-0.03-0.03-0.03-0.03-0.03-0.03-0.03-0.03-0.03-0.02-0.02-0.02-0.02-0.02-0.02-0.02-0.02-0.02-0.01-0.01-0.010.000.000.000.000.000.000.000.000.000.000.000.000.020.020.020.020.020.020.020.020.020.010.

33、010.010.040.030.030.030.030.030.030.030.030.030.030.030.060.050.050.050.050.050.050.050.050.040.040.040.080.070.070.070.060.060.060.060.060.060.060.060.100.090.080.080.080.080.080.080.080.070.070.070.120.100.100.100.100.090.090.090.090.090.090.090.140.120.120.110.110.110.110.110.110.100.100.100.160.

34、140.130.130.130.130.120.120.120.120.120.110.180.150.150.150.140.140.140.140.140.130.130.130.200.170.170.160.160.160.160.150.150.150.150.140.220.190.180.180.180.170.170.170.170.160.160.160.240.200.200.200.190.190.190.180.180.180.170.170.260.220.220.210.210.210.200.200.200.190.190.190.280.240.230.230.

35、230.220.220.210.210.210.200.200.300.260.250.250.240.240.230.230.230.220.220.210.320.270.270.260.260.250.250.240.240.240.230.230.340.290.280.280.270.270.260.260.260.250.250.240.360.310.300.290.290.280.280.270.270.270.260.260.380.320.320.310.310.300.290.290.290.280.280.270.400.340.330.330.320.320.310.

36、310.300.300.290.290.420.360.350.340.340.330.330.320.320.310.300.300.440.370.370.360.350.350.340.340.330.320.320.310.460.390.380.380.370.360.360.350.350.340.330.330.480.410.400.390.390.380.370.370.360.350.350.340.500.430.420.410.400.400.390.380.380.370.360.360.520.440.430.430.420.410.400.400.390.380.

37、380.370.540.460.450.440.430.430.420.410.410.400.390.390.560.480.470.460.450.440.430.430.420.410.410.400.580.490.480.470.470.460.450.440.440.430.420.410.600.510.500.490.480.470.470.460.450.440.440.430.620.530.520.510.500.490.480.470.470.460.450.440.640.540.530.520.510.510.500.490.480.470.460.460.660.

38、560.550.540.530.520.510.500.500.490.480.470.680.580.570.560.550.540.530.520.510.500.490.490.700.600.580.570.560.550.540.530.530.520.510.500.720.610.600.590.580.570.560.550.540.530.520.510.740.630.620.610.600.580.570.560.560.550.540.530.760.650.630.620.610.600.590.580.570.560.550.540.780.660.650.640.

39、630.620.610.600.590.580.570.560.800.680.670.660.640.630.620.610.600.590.580.570.820.700.680.670.660.650.640.630.620.610.600.590.840.710.700.690.680.660.650.640.630.620.610.600.860.730.720.700.690.680.670.660.650.630.620.610.880.750.730.720.710.700.680.670.660.650.640.630.900.770.750.740.720.710.700.

40、690.680.660.650.640.920.780.770.750.740.730.710.700.690.680.670.660.940.800.780.770.760.740.730.720.710.690.680.670.960.820.800.790.770.760.750.730.720.710.700.690.980.830.820.800.790.770.760.750.740.720.710.701.000.850.830.820.800.790.780.760.750.740.730.711.020.870.850.840.820.810.790.780.770.750.

41、740.731.040.880.870.850.840.820.810.790.780.770.750.741.060.900.880.870.850.840.820.810.800.780.770.761.080.920.900.880.870.850.840.820.810.800.780.771.100.940.920.900.880.870.850.840.830.810.800.791.120.950.930.920.900.880.870.850.840.830.810.801.140.970.950.930.920.900.880.870.860.840.830.811.160.

42、990.970.950.930.920.900.890.870.860.840.831.181.000.980.970.950.930.920.900.890.870.860.841.201.021.000.980.970.950.930.920.900.890.870.861.221.041.021.000.980.960.950.930.920.900.890.871.241.051.031.021.000.980.960.950.930.910.900.891.261.071.051.031.011.000.980.960.950.930.910.901.281.091.071.051.

43、031.010.990.980.960.940.930.911.301.111.081.061.051.031.010.990.980.960.940.931.321.121.101.081.061.041.021.010.990.970.960.941.341.141.121.101.081.061.041.021.010.990.970.961.361.161.131.111.091.071.061.041.021.000.990.971.381.171.151.131.111.091.071.051.041.021.000.991.401.191.171.151.131.111.091.071.051.031.021.00附录A 资料性附录气瓶中气态石油气重量修正表YS