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8. SAMPLINGANDCRITERIAFORCONFORMITY 8.1 Lot All sacks of the same construction in a consignment shall be grouped together to constitute a lot. 8.2 Lot Conformity The conformity of the lot to the requirements of the standard shall be determined on the basis of the test carried out on the samples selected from it. 8.3 Sample Size The number of samples to be selected depends on the size of the lot and number of bales to be sampled shall be in accordance with col 2 and col 3 of Table 2. The number of sacks to be selected from the bales sampledshall be in accordance with col 4 of Table 2 for visual inspection, dimensions, ends, picks and mass requirements. The number of sacks shall be in accordance with col 5 of Table 2 for breaking load of fabric and seam strength requirements. The number of sacks to be selected for breaking strength of sacks after exposure of UV radiation shall be in accordance with col 6 of Table 2. 8.4 Criteria for Conformity The lot shall be considered as conforming to the requirements of the standard if the following conditions are satisfied: The number of defective sacks in case of visual inspection, ends, picks and dimensions is up to 10 percent of the sample size subject to rounding off the fraction to next higher integer. None of the bales of sacks weighs less than the respective lower specified limit after allowing tolerance of ±6 percent on individualSack and ± 3 percent on the bale (6.3). The average seam strength is not less than the value specified and none of the individual value is more than 10 percent below the specified value. None of the samples after exposure to UV radiation and weathering shall have breaking strength less than 50 percent of the original breaking strength. Table 2 Sample size and criteria for conformity SN iUpto12500 3 13 8 1 No. of PP/HDPE Sacks in a Lot No. of Bales to be Sampled Sample Size for VisualInspection, Dimensions,Ends, Picks and Mass Requirements Sample Size for BreakingStrength of PP/HDPEFabric before Exposing toUV Radiation and BreakingStrength of SeamRequirements Sample Size for BreakingStrength of PP/HDPE Fabric after Exposing toUV RadiationRequirement ii 12 501 to 25 000 iii 25 001 to 50 000 iv 50001and above 5 20 8 1 8 32 13 2 12 50 20 2 7PDF Image | High Density Polyethylene HDPE Textiles
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