
ISO 13909-7:2025
ISO 13909-7:2025 Coal and coke — Mechanical sampling — Part 7: Methods for determining the precision of sampling, sample preparation and testing
CDN $347.00
This publication was last reviewed and confirmed in 2025.
Coal and coke — Mechanical sampling — Part 7: Methods for determining the precision of sampling, sample preparation and testing
Description
This document defines methods for estimating overall precision and for deriving values for primary increment variance which can be used to modify the sampling scheme to change the precision. Methods for checking the variance of sample preparation and testing are also described.
In this document, formulae are developed which link the variables that contribute to overall sampling precision.
Edition
3
Published Date
2026-06-18
Status
PUBLISHED
Pages
42
Format 
Secure PDF
Secure – PDF details
- Save your file locally or view it via a web viewer
- Viewing permissions are restricted exclusively to the purchaser
- Device limits - 3
- Printing – Enabled only to print (1) copy
See more about our Environmental Commitment
Abstract
This document defines methods for estimating overall precision and for deriving values for primary increment variance which can be used to modify the sampling scheme to change the precision. Methods for checking the variance of sample preparation and testing are also described.
In this document, formulae are developed which link the variables that contribute to overall sampling precision.
Previous Editions
Can’t find what you are looking for?
Please contact us at:
Related Documents
-

ISO 17246:2024 Coal and coke – Proximate analysis
CDN $85.00 Add to cart -

ISO 23604:2022 Method of determining specific surface area of coal
CDN $129.00 Add to cart -

ISO 7404:2016 Methods for the petrographic analysis of coals – Part 1: Vocabulary
CDN $82.00 Add to cart -

ISO 19579:2006 Solid mineral fuels – Determination of sulfur by IR spectrometry
CDN $85.00 Add to cart







