ISO 17831-1:2015 PDF
Solid biofuels — Determination of mechanical durability of pellets and briquettes — Part 1: Pellets
Solid biofuels — Determination of mechanical durability of pellets and briquettes — Part 1: Pellets
- Статус документа:
- Отменён
- Формат:
- Электронный (PDF)
- Количество страниц:
- 7
- Дата публикации:
- 4 декабря 2015 г.
- Издание:
- ISO IS 17831 edition 1 version 1
- ICS:
- 27.190
ISO 17831-1:2015 defines a determination method for testing the mechanical durability of pellets. The mechanical durability is a measure of the resistance of compressed fuels towards shocks and/or abrasion as a consequence of handling and transportation.
Abstract
Overview
ISO 17831-1:2015 - Solid biofuels - Determination of mechanical durability of pellets - Part 1: Pellets - specifies a laboratory method to measure the mechanical durability of solid biofuel pellets. Mechanical durability quantifies a pellet’s resistance to shocks and abrasion incurred during handling, storage and transportation. The standard is intended for producers, testing laboratories, equipment manufacturers and purchasers who need reliable durability data for quality control, specification and process design.
Key topics and technical requirements
- Scope and purpose: Defines the test objective, terminology and reporting requirements for pellet durability testing.
- Apparatus (pellet tester):
- Dust-tight stainless-steel rotating box (inner dims ≈ 300 × 300 × 125 mm, wall thickness ~1.5 mm).
- A baffle fixed on the diagonal, rounded edges to avoid cutting.
- Rotation at (50 ± 2) rpm; sample subjected to controlled pellet-to-pellet and pellet-to-wall collisions.
- Sieve and balance:
- Manual sieve with round holes of 3.15 mm diameter (recommended ≥ 400 mm diameter).
- Balance capacity ≥ 2 kg with 0.1 g readability.
- Sample preparation:
- Sampling and sub-sampling per the referenced sampling/sample-preparation documents.
- Minimum sample size 2.5 kg; pre-sieve to remove fines < 3.15 mm.
- Moisture content determination according to ISO 18134 (oven-dry methods).
- Procedure:
- Duplicate determinations.
- Test portion: (500 ± 10) g (500 ± 50 g for pellets >12 mm).
- Tumble for 500 rotations at 50 rpm, then gently sieve (5–10 circular shakes) to separate fines.
- Calculation:
- Mechanical durability (DU) = (mass after tumbling / mass before tumbling) × 100; results to two decimals, report rounded to 0.1%.
- Precision and bias:
- For DU ≥ 97.5%: repeatability 0.3% abs, reproducibility 0.6% abs.
- For DU
Технические детали
- Технический комитет
- ISO/TC 238 - Solid biofuels
- SKU
- ISO 17831-1:2015
Похожие стандарты
Упомянутые в описании и другие стандарты ISO
BS EN ISO 18134-3:2023
ДействующийSolid biofuels. Determination of moisture content. Moisture in general analysis sample.
ISO 8689-1:2000
ДействующийWater quality — Biological classification of rivers — Part 1: Guidance on the interpretation of biological qu…
Overview ISO 8689-1:2000, titled Water quality - Biological classification of rivers - Part 1: Guidance on the interpretation of biological quality data from surveys of benthic macroinvertebrates, is…
ISO/ASTM51540-04(2012)
ОтменёнStandard Practice for Use of a Radiochromic Liquid Dosimetry System (Withdrawn 2020)
Significance and Use4.1 The radiochromic liquid dosimetry system provides a means of measuring absorbed dose in materials (5-7). Under the influence of ionizing radiation, chemical reactions take pla…
ISO/ASTM51204-04
ДействующийStandard Practice for Dosimetry in Gamma Irradiation Facilities for Food Processing (Withdrawn 2013)
Significance and Use4.1 Food products may be treated with ionizing radiation, such as gamma-rays from 60Co or 137Cs sources, for numerous purposes, including control of parasites and pathogenic micro…
ISO/ASTM51431-05
ОтменёнStandard Practice for Dosimetry in Electron Beam and X-Ray (Bremsstrahlung) Irradiation Facilities for Food P…
Significance and Use4.1 Food products may be treated with acceleratorgenerated radiation (electrons and X-rays) for numerous purposes, including control of parasites and pathogenic microorganisms, in…
ISO/ASTM52628-20e1
ДействующийStandard Practice for Dosimetry in Radiation Processing
1.1 This practice describes the basic requirements that apply when making absorbed dose measurements in accordance with the ASTM E61 series of dosimetry standards. In addition, it provides guidance o…
ISO/ASTM52921-13(2019)
ДействующийStandard Terminology for Additive Manufacturing—Coordinate Systems and Test Methodologies
Significance and Use 3.1 Although many additive manufacturing systems are based heavily upon the principles of Computer Numerical Control (CNC), the coordinate systems and nomenclature specific to CN…
ISO/ASTMTR52917-EB
ДействующийAdditive Manufacturing — Round Robin Testing — General Guidelines
This document outlines the steps with regard to aspects of design to conduct and run a round robin study (RRS) to assess the degree of variability in an additive manufacturing material or process. Th…