可燃气体分析的验证方法. 第2部分: 量化方法的多个实验室验证

[中文适用范围]： 本文件描述了在实验室开发分析方法时用于验证火灾气体分析的工具和技术。它补充了ISO 12828-1，该标准涉及定量和检测限。 描述的工具和技术可应用于数量、浓度（摩尔和质量）、体积分数以及浓度或体积分数与时间分析的测量。火灾排放物通常是化学物质的复杂矩阵，强烈依赖于火灾中涉及的材料，但也依赖于火灾场景参数（参见ISO 19706）。由于条件的多样性，可用的分析技术将在矩阵对方法和可测量浓度范围的影响方面有所不同。可用的分析技术可能在几个方面有显著差异，例如它们对矩阵的敏感性和可可靠测量的浓度/体积分数范围。因此，在实践中，为每个感兴趣的火灾排放物提供一个独特的参考分析技术是困难或不可能的。本文件中的工具允许验证火灾排放物分析的可靠测量范围和条件，从而能够比较各种分析技术。 可以使用本文件中包含的信息的现有国际标准的例子是ISO 19701、ISO 19702、ISO 5660-1中的分析化学方法，以及在ISO/TR 16312-2、ISO 16405中讨论的方法中的化学测量，或它们在火灾毒性评估中的应用，使用ISO 13571和ISO 13344。 [外文原描述]： ISO 12828-2:2016 describes tools and techniques for use in validating the analysis of fire gases when an analytical method is developed in a laboratory. It complements ISO 12828‑1, which deals with limits of quantification and detection. The tools and techniques described can be applied to the measurement of quantities, concentrations (molar and mass), volume fractions, and concentration or volume fraction versus time analyses. Fire effluents are often a complex matrix of chemical species, strongly dependent on the materials involved in the fire, but also dependent on fire scenario parameters (see ISO 19706). With such a wide variety of conditions, the analytical techniques available will differ in terms of the influence of the matrix on the methods and on the concentration ranges which can be measured. The analytical techniques available are likely to differ significantly in several respects, such as their sensitivity to the matrix and the range of concentrations/volume fractions which can be reliably measured. For these reasons, a unique reference analytical technique for every fire effluent of interest is, in practical terms, difficult or impossible to achieve. The tools in this document allow verification of the reliable measurement ranges and conditions for the analysis of fire effluents, thereby enabling a comparison among various analytical techniques. Examples of existing International Standards where the information contained in this document can be used are the analytical chemical methods in ISO 19701, ISO 19702, ISO 5660‑1, and the chemical measurements in the methods discussed in ISO/TR 16312‑2, ISO 16405, or their application to fire toxicity assessment using ISO 13571 and ISO 13344. NOTE 1 The variable "concentration" is used throughout this document, but it can be replaced in all places with "volume fraction" without altering the meaning. This does not apply to the Annexes. NOTE 2 Concentration can be calculated from volume fraction by multiplying by the density of the relevant gas at the relevant temperature and pressure.