ISO 18283:2022
Coal and coke — Manual sampling
This document provides the basic terms used in manual sampling of coal and coke and describes the general principles of sampling. It provides procedures and requirements for establishing a manual sampling scheme, methods of manual sampling, sampling equipment, handling and storage of samples, sample preparation and a sampling report, and applies to manual sampling during the transfer of coal or coke. Guidelines for manual sampling in stationary situations are given in Annex B, but this method of sampling does not provide a representative test sample and the sampling report shall state this.
This document covers sampling of brown coals and lignites, but does not include sampling from coal seams, for which guidance is given in ISO 14180. Mechanical sampling of coal and coke is covered in ISO 13909.
| Get this standard | Prices exclude GST | |
|---|---|---|
| PDF ( Single user document) |
$361.74 NZD
|
|
| HardCopy |
$406.09 NZD
|
|
| Networkable PDF |
Price varies
|
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Establishing a sampling scheme
4.1 General
4.1.1 Sampling
4.1.2 Sampling scheme
4.1.3 Parameters
4.1.4 Sampling methods
4.2 Design of the sampling scheme
4.2.1 General
4.2.2 Coal or coke to be sampled and considerations for sampling
4.2.3 Division of lots
4.2.4 Precision of results
4.2.5 Bias of results
4.2.6 Requirements for test samples
4.3 Precision of sampling
4.3.1 General
4.3.2 Precision and total variance
4.3.3 Primary increment variance
4.3.4 Sub-lot variance
4.3.5 Preparation and testing variance
4.3.6 Number of sub-lots and number of increments per sub-lot
4.3.7 Minimum mass of samples for general analysis and determination of total moisture content
4.4 Checking the overall precision for the lot by calculation and selection of sampling scheme
4.5 Determination of acquired precision by replicate sampling
4.5.1 General
4.5.2 Method and calculation
4.5.3 Precision obtained using normal sampling scheme
4.6 Size analysis
5 Methods of sampling
5.1 General
5.2 Sampling by time interval (time-basis sampling)
5.3 Sampling by mass interval (mass-basis sampling)
5.4 Stratified random sampling
5.4.1 General
5.4.2 Stratified random sampling by time interval
5.4.3 Stratified random sampling by mass interval
5.5 Extracting the increment
5.6 Coal or coke in motion
5.6.1 General
5.6.2 Stopped belt
5.6.3 Falling stream
5.6.4 Moving belt
5.6.5 Stockpiles (building/reclaiming)
5.6.6 Grabs/front-end loaders
5.6.7 Barges/trucks/railcars/wagons (loading/unloading)
5.7 Moisture/common sample
5.8 Different coals or cokes
5.9 Random selection of increments
6 Sampling equipment
6.1 General
6.2 Examples
6.2.1 Ladles
6.2.2 Shovels
6.2.3 Scoops
6.2.4 Probes
6.2.5 Manual cutter
6.2.6 Stopped-belt sampling frame
7 Handling and storage of samples
7.1 Sample size
7.2 Time
7.3 Divided sample
7.4 Containers
7.5 Moisture loss/breakage or degradation
7.6 Identification/labelling
8 Sample preparation
8.1 General
8.2 Constitution of a sample
8.3 Division
8.3.1 General
8.3.2 Mechanical methods
8.3.3 Manual methods
8.4 Reduction
8.4.1 General
8.4.2 Reduction mills
8.5 Mixing
8.6 Air-drying of coal
8.7 Coal — Preparation of test samples
8.7.1 Types of test samples
8.7.2 Preparation of samples for determination of total moisture content
8.7.3 Preparation of samples for general analysis
8.7.4 Common samples
8.7.5 Preparation of size-analysis sample
8.7.6 Preparation of samples for other tests
8.7.7 Reserve sample
8.8 Coke — Preparation of test samples
8.8.1 Types of test samples
8.8.2 Preparation of coke samples for determination of total moisture content
8.8.3 Preparation of samples for general analysis
8.8.4 Storage
8.8.5 Physical test sample
8.8.6 Samples for special properties
8.8.7 Reserve sample
9 Packing and marking of samples
10 Sampling report
Annex A (informative) Example of calculation of precision, mass of increments,number of sub-lots and number of increments per sub-lot
Annex B (informative) Methods of sampling coal and coke from stationary lots
Bibliography
Previous versions
Keep me up-to-date
Register to receive notifications when updates are made to this standard.
Related Information
Similar Standards
-
AS/NZS 4012:2014
Domestic solid fuel burning appliances - Method for determination of power output and efficiency -
AS/NZS 4012:2014 A1
Domestic solid fuel burning appliances - Method for determination of power output and efficiency: Amendment 1:2015 -
AS/NZS 4014.1:1999
Domestic solid fuel burning appliances - Test fuels - Hardwood
-
AS/NZS 4014.2:2016
Domestic solid fuel burning appliances - Test fuels - Part 2: Softwood
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Establishing a sampling scheme
4.1 General
4.1.1 Sampling
4.1.2 Sampling scheme
4.1.3 Parameters
4.1.4 Sampling methods
4.2 Design of the sampling scheme
4.2.1 General
4.2.2 Coal or coke to be sampled and considerations for sampling
4.2.3 Division of lots
4.2.4 Precision of results
4.2.5 Bias of results
4.2.6 Requirements for test samples
4.3 Precision of sampling
4.3.1 General
4.3.2 Precision and total variance
4.3.3 Primary increment variance
4.3.4 Sub-lot variance
4.3.5 Preparation and testing variance
4.3.6 Number of sub-lots and number of increments per sub-lot
4.3.7 Minimum mass of samples for general analysis and determination of total moisture content
4.4 Checking the overall precision for the lot by calculation and selection of sampling scheme
4.5 Determination of acquired precision by replicate sampling
4.5.1 General
4.5.2 Method and calculation
4.5.3 Precision obtained using normal sampling scheme
4.6 Size analysis
5 Methods of sampling
5.1 General
5.2 Sampling by time interval (time-basis sampling)
5.3 Sampling by mass interval (mass-basis sampling)
5.4 Stratified random sampling
5.4.1 General
5.4.2 Stratified random sampling by time interval
5.4.3 Stratified random sampling by mass interval
5.5 Extracting the increment
5.6 Coal or coke in motion
5.6.1 General
5.6.2 Stopped belt
5.6.3 Falling stream
5.6.4 Moving belt
5.6.5 Stockpiles (building/reclaiming)
5.6.6 Grabs/front-end loaders
5.6.7 Barges/trucks/railcars/wagons (loading/unloading)
5.7 Moisture/common sample
5.8 Different coals or cokes
5.9 Random selection of increments
6 Sampling equipment
6.1 General
6.2 Examples
6.2.1 Ladles
6.2.2 Shovels
6.2.3 Scoops
6.2.4 Probes
6.2.5 Manual cutter
6.2.6 Stopped-belt sampling frame
7 Handling and storage of samples
7.1 Sample size
7.2 Time
7.3 Divided sample
7.4 Containers
7.5 Moisture loss/breakage or degradation
7.6 Identification/labelling
8 Sample preparation
8.1 General
8.2 Constitution of a sample
8.3 Division
8.3.1 General
8.3.2 Mechanical methods
8.3.3 Manual methods
8.4 Reduction
8.4.1 General
8.4.2 Reduction mills
8.5 Mixing
8.6 Air-drying of coal
8.7 Coal — Preparation of test samples
8.7.1 Types of test samples
8.7.2 Preparation of samples for determination of total moisture content
8.7.3 Preparation of samples for general analysis
8.7.4 Common samples
8.7.5 Preparation of size-analysis sample
8.7.6 Preparation of samples for other tests
8.7.7 Reserve sample
8.8 Coke — Preparation of test samples
8.8.1 Types of test samples
8.8.2 Preparation of coke samples for determination of total moisture content
8.8.3 Preparation of samples for general analysis
8.8.4 Storage
8.8.5 Physical test sample
8.8.6 Samples for special properties
8.8.7 Reserve sample
9 Packing and marking of samples
10 Sampling report
Annex A (informative) Example of calculation of precision, mass of increments,number of sub-lots and number of increments per sub-lot
Annex B (informative) Methods of sampling coal and coke from stationary lots
Bibliography