What is ISO 3085- checking the precision of sampling of iron ores about?
ISO 3085 specifies experimental methods for checking the precision of sampling, sample preparation and measurement of iron ores being carried out in accordance with the methods specified in ISO 3082 and the relevant ISO standards for measurement.
ISO 3085 can also be applied for the purpose of checking the precision of sampling, sample preparation and measurement separately.
Who is ISO 3085- checking the precision of sampling of iron ores for?
ISO 3085 on checking the precision of sampling on iron ores is useful for:
- Metal industry
- Iron ore industry
- Agencies involved in sampling and sample preparation
Why should you use ISO 3085- checking the precision of sampling of iron ores?
ISO 3085 specifies the use of the mean square difference between assay pairs to estimate the numerical value of the precision instead of the mean difference between assay pairs.
The use of mean square differences avoids overestimating the sampling system’s capability, thereby limiting the opportunity for improvement.
In addition, when possible measurement outliers are identified, the process (such as sampling, sample preparation or measurement) under investigation may not be in a state of statistical control and should be checked in order to detect assignable causes.
If these assignable causes can be identified as specified in ISO 3085, then the set of measurements should be repeated after the assignable causes have been corrected. Otherwise, data assessment should proceed without eliminating the outliers.
ISO 3085 helps you ensure sampling of iron ores is done with precision and accuracy.
What’s changed since the last update?
BS ISO 3085:2019 supersedes ISO 3085:2002. BS ISO 3085:2019 includes some technical changes with respect to ISO 3085:2002.