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
Jan 19, 2016
OIML RECCOMENDATION R87LENGTH, AREA & COUNT
Ben AitkenTrading Standards OfficerTrading Standards MBIENew Zealand
Kevin Gudmundsson Legal Metrology AdvisorTrading Standards MBIENew 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 (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
CountNominal Quantity of Product
(Qn) in countPercent of Qn
Qn ≤ 50 items No tolerable deficiency allowed
Qn >50 items 1b
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
• ExerciseAQS by count
Length / Area / Count
Thank you for your attention
Any Questions?