OIML RECCOMENDATION R87 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 R87 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 R87

Length / Area / Count Sampling plans for goods sold by length, area or count are derived from R87 Table 1, Sampling plans for prepackages

Length / Area / Count OIML R87 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 (Q n ) in length Percent of Q n Q n ≤ 5 mNo tolerable deficiency allowed Q n >5 m2

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

Length / Area / Count Example

Length / Area / Count

Area Nominal Quantity of Product (Q n ) in area Percent of Q n All Q n 3

Length / Area / Count Count Nominal Quantity of Product (Q n ) in count Percent of Q n Q n ≤ 50 itemsNo tolerable deficiency allowed Q n >50 items1b1b 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

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 pre- packages from R87

Length / Area / Count Sample Selection Table 1, Sampling plans for pre-packages from R87

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?