OIML RECCOMENDATION R 87 LENGTH AREA COUNT Ben

OIML RECCOMENDATION R 87 LENGTH, AREA & COUNT Ben Aitken Trading Standards Officer Trading Standards MBIE New Zealand Kevin Gudmundsson Legal Metrology Advisor Trading Standards MBIE New Zealand

Length / Area / Count OIML R 87 extends to cover pre-packaged goods sold by length, area and count Each of Length, Area & Count has its own unique tolerable deficiency, stated in Table 2, of R 87

Length / Area / Count Sampling plans for goods sold by length, area or count are derived from R 87 Table 1, Sampling plans for prepackages

Length / Area / Count OIML R 87 extends to cover pre-packaged goods sold by length, area and count Qn = Nominal quantity of goods

Length / Area / Count Length Nominal Quantity of Product (Qn) in length Percent of Qn Qn ≤ 5 m No tolerable deficiency allowed Qn >5 m 2

Length / Area / Count What sort of prepackaged goods are sold by length?

Length / Area / Count Example

Length / Area / Count

Length / Area / Count Area Nominal Quantity of Product (Qn) in area Percent of Qn All Qn 3

Length / Area / Count Nominal Quantity of Product (Qn) in count Percent of Qn Qn ≤ 50 items No tolerable deficiency allowed Qn >50 items 1 b Compute the value of T by multiplying the nominal quantity by 1% and rounding the result up to the next whole number. The value may be larger than 1% due to the rounding but this is accepted because the products are whole items and cannot be divided b

Length / Area / Count Test Equipment May include; • Length measure – Tape Measure, or – Ruler • Suitable weighing instrument? • Test masses?

Length / Area / Count Tare determination Unless using a weighing instrument to determine errors there is no need to determine the average tare weight

Length / Area / Count Sample Selection Establish the Inspection lot size and determine the sample size by referencing Table 1, Sampling plans for prepackages from R 87

Length / Area / Count Sample Selection Table 1, Sampling plans for pre-packages from R 87

Length / Area / Count Tolerable Deficiency Calculate the tolerable deficiency by referencing the appropriate section of Table 2, Tolerable deficiencies in actual content for pre-packages

Length / Area / Count • Conduct AQS inspection by determining the error for all individual pre-packages within the sample • Determine if sample meets the requirements of AQS • 3 Packers Rules • Determine if inspection lot passes or fails

Length / Area / Count • Exercise AQS by count

Length / Area / Count Thank you for your attention Any Questions?