Statistical sampling procedures for lot inspection of processed fruits and vegetables by attributes

(a) General. Single sampling plans shall be used as the lot sampling plan for attributes standards under either of the following conditions:

(1) Sampling of the product shall be made during the production period. No grade will be assigned to individual sample units. One grade determination only will be made at the end of the production period for the inspection lot.

(2) Sampling of the product shall be made when the inspection lot is located in a warehouse, truck, railroad car, or other similar conveyance.

(b) Sample size. Samples shall be randomly selected from each inspection lot in the exact number of sample units indicated for the lot size in tables XI through XIV as applicable for canned, frozen, dried, or dehydrated fruits and vegetables.

Table XI—Canned or Similarly Processed Fruits, Vegetables, and Products Containing Units of Such Size and Character as To Be Readily Separable[Lot sample size] Container size group Lot size (number of containers) Group 1: Any type container of a volume not exceeding that of a No. 303 size can 12,000 or less 12,001-39,000 39,001-84,000 84,001-145,000 Group 2: Any type of container of a volume exceeding that of a No. 303 size can but not exceeding that of a No. 3 cylinder size can 6,000 or less 6,001-19,500 19,501-42,000 42,001-72,500 Group 3: Any type of container of a volume exceeding that of a No. 3 cylinder size can, but not exceeding that of a No. 12 size can 3,000 or less 3,001-9,750 9,751-21,000 21,001-36,250 Group 4: Any type of container of a volume exceeding that of a No. 12 Convert to equivalent number of 6-lb. net weight containers and use group 3 size can. Lot inspection: Sample size (number of sample units) 6 13 21 29

Table XII—Frozen or Similarly Processed Fruits, Vegetables, and Products Containing Units of Such Size and Character as To Be Readily Separable[Lot sample size] Container size group Lot size (number of containers) Group 1: Any type of container of 1 lb or less net weight 9,600 or less 9,601-31,200 31,201-67,200 67,201-116,000 Group 2: Any type of container over 1 lb but not over 21⁄2 lb net weight 4,800 or less 4,801-15,600 15,601-33,600 33,601-58,000 Group 3: Any type of container over Convert to equivalent number of 21⁄2-lb. containers and use group 2 21⁄2 lbs. Lot inspection: Sample size (number of sample units) 6 13 21 29

Table XIII—Canned, Frozen, or Otherwise Processed Fruits, Vegetables, Related Products of a Comminuted, Fluid or Homogeneous State[Lot sample size] Container size group Lot size (number of containers) Group 1: Any type of container of 1 lb or less 18,000 or less 18,001-58,500 58,501-126,000 126,001-217,000 Group 2: Any type of container exceeding 1 lb. but not exceeding 60 oz 12,000 or less 12,001-39,000 39,001-84,000 84,001-145,000 Group 3: Any type of container exceeding 60 oz but not exceeding 10 lb 6,000 or less 6,001-19,500 19,501-42,000 42,001-72,500 Group 4: Any type of container Convert to equivalent number of 6-lb. containers and use group 3. exceeding 10 lbs. Lot inspection: Sample size (number of sample units) 6 13 21 29

Table XIV—Dehydrated (Low-Moisture) Fruits, and Vegetables[Lot sample size] Container size group Lot size (number of containers) Group 1: Any type of container of 1 lb or less net weight 7,200 or less 7,201-23,400 23,401-50,400 50,401-87,000 Group 2: Any type of container over 1 lb but not over 6 lb net weight 2,400 or less 2,401-7,800 7,801-16,800 16,801-29,000 Group 3: Any type of container over 6 Convert to equivalent number of 5-lb. containers and use group 2. lbs. Lot inspection: Sample size (number of sample units) 6 13 21 29

(c) Determining compliance. (1) An inspection lot meets the requirements of a quality grade if the number of defects (or defectives) is equal to or less than the acceptance numbers of all classes of defects.

(2) An inspection lot fails the requirements of a quality grade if the number of defects (or defectives) exceeds the acceptance number for one or more classes of defects.

(d) Lot single sampling plans for processed fruits and vegetables. (1) Tables XV through XIX contain the lot single sampling plans for each of five different standard sample unit sizes. The plans within each table are listed according to increasing values of Acceptable Quality Levels (AQL's).

(2) AQL values of 10.0 or less may be expressed either in “defects per hundred units” or in “percent defective units.” The same sampling plans are used for both. Separate sampling plans must be used for AQL values greater than 10.0.

(3) A separate lot single sampling plan is chosen for each class of defects (or defectives) by first specifying the desired AQL, the appropriate standard sample unit size, and the number of sample units as specified in § 52.38c (b) of this subpart. The quality levels associated with the Pa=50% and Pa=10% levels are given in the instructional manual.

Table XV—Lot Single Sampling Plans[Standard sample unit size=6] Number of sample units 6 13 21 29 Acceptance numbers—quality levels expressed as defects per 100 units or percent defective—AQL 1 1 2 3 4 1.5 1 3 4 5 2.5 3 4 6 8 4 4 6 9 11 5 4 7 11 14 6.5 5 9 13 17 8.5 6 11 16 21 10 7 12 19 24 Quality levels expressed as defects per 100 units only 12.5 8 15 22 29 15 9 17 26 35 20 12 22 33 44 25 14 27 41 54 33 18 34 52 70 40 21 40 62 83 50 25 49 76 102 65 31 62 97 131 85 40 80 124 168 100 46 92 144 196 150 66 135 212 288 250 105 218 344 469 Quality levels expressed as percent defective only 12.5 8 15 22 29 15 9 17 25 34 20 11 21 33 43 25 13 26 39 53 33 16 32 50 67 40 19 38 59 80 50 23 46 72 98

Table XVI—Lot Single Sampling Plans[Standard sample unit size=13] Number of sample units 6 13 21 29 Acceptance numbers—quality levels expressed as defects per 100 units or percent defective—AQL 0.65 1 3 4 5 1 2 4 6 7 1.5 3 5 8 10 2.5 4 8 11 15 4 6 11 16 22 5 7 13 20 26 6.5 9 17 25 33 8.5 11 21 31 41 10 12 24 36 48 Quality levels expressed as defects per 100 units only 12.5 15 29 44 58 15 17 34 51 69 20 22 43 67 90 25 27 53 82 110 33 34 68 106 143 40 40 81 126 171 50 49 99 156 211 65 62 127 199 271 85 80 163 257 350 100 92 190 300 409 Quality levels expressed as percent defective only 12.5 15 28 43 58 15 17 33 51 68 20 21 42 65 88 25 26 51 80 108 33 32 66 103 139 40 38 78 123 166 50 46 95 150 204

Table XVII—Lot Single Sampling Plans[Standard sample unit size=25] Number of sample units 6 13 21 29 Acceptance numbers—quality levels expressed as defects per 100 units or percent defective—AQL 0.4 2 3 5 6 0.65 3 5 7 8 1 4 6 9 12 1.5 5 9 13 16 2.5 7 13 19 25 4 10 19 29 38 5 12 23 35 46 6.5 15 29 44 58 8.5 19 36 56 74 10 21 42 64 86 Quality levels expressed as defects per 100 units only 12.5 26 51 79 106 15 30 60 93 126 20 39 78 122 165 25 48 96 150 203 33 61 124 195 265 40 73 149 234 318 50 89 183 289 394 65 114 235 372 507 Quality levels expressed as percent defective only 12.5 25 50 78 105 15 30 59 92 125 20 38 77 120 163 25 46 94 148 200 33 59 121 191 260 40 70 145 228 312 50 85 177 281 385

Table XVIII—Lot Single Sampling Plans[Standard sample unit size=50] Number of sample units 6 13 21 29 Acceptance numbers—quality levels expressed as defects per 100 units or percent defective—AQL 0.15 1 3 4 5 0.25 2 4 5 7 0.4 3 5 8 10 0.65 4 8 11 15 1 6 11 16 21 1.5 8 15 22 29 2.5 12 23 35 46 4 18 34 53 70 5 21 42 64 86 6.5 27 53 82 110 8.5 34 67 105 142 10 39 78 122 165 Quality levels expressed as defects per 100 units only 12.5 48 96 150 203 15 56 114 178 242 20 73 149 234 318 25 89 183 289 394 33 115 239 377 514 40 138 287 454 620 50 170 355 563 769 Quality levels expressed as percent defective only 12.5 47 95 149 202 15 55 112 177 240 20 71 147 231 315 25 87 181 286 390 33 112 234 372 508 40 134 281 446 611 50 164 346 552 756

Table XIX—Lot Single Sampling Plans[Standard sample unit size=100] Number of sample units 6 13 21 29 Acceptance numbers—quality levels expressed as defects per 100 units or percent defective—AQL 0.1 2 3 5 6 0.15 3 4 6 8 0.25 4 6 9 12 0.4 5 9 13 17 0.65 7 13 20 26 1 10 19 29 38 1.5 14 27 41 54 2.5 21 42 64 86 4 32 64 99 134 5 39 78 122 165 6.5 49 99 156 211 8.5 63 128 200 272 10 73 149 234 318 12.5 89 183 289 394 15 105 218 344 469 20 138 287 454 620 25 170 355 563 769 33 221 463 736 1,008 40 266 558 888 1,216 50 329 692 1,103 1,513 Quality levels expressed as percent defective only 12.5 88 182 287 392 15 104 216 342 467 20 136 284 450 615 25 167 351 558 763 33 217 457 728 999 40 260 549 877 1,203 50 320 680 1,088 1,494

[43 FR 10542, Mar. 14, 1978. Redesignated at 46 FR 63203, Dec. 31, 1981]