蒙面材料检测

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GB/T 14774-1993工作座椅一般人类工效学要求

本标准规定了工作座椅的术语、结构型式、主要尺寸和一般人类工效学要求。 本标准适用于一般工作场所（含计算机房、打字室、控制室、交换台等场所）坐姿操作人员使用的工作座椅。 本标准不适用于办公室和家庭用椅，不适用于安装在生产设备上的固定式工作座椅、驾驶员座椅和在狭小作业空间使用的工作座椅。

GB 50371-2006厅堂扩声系统设计规范

本规范适用于新建、扩建和改建的各类厅堂相对固定安装的扩音系统设计，不包括电影还音系统(即B环)。 本规范制定了各类厅堂扩声系统设计的技术要求和观众厅的扩声系统特性指标。

SN/T 2809-2011出口食品接触材料.高分子材料.高温下总迁移量的试验方法

本标准规定了与食品接触的高分子材料及其制品在100℃～175℃范围内，向食品模拟物中总迁移量的测定方法。本标准适用于片或薄膜形式的与食品接触的高分子材料及其制品，也可用于更广泛的材料和容器类型。

JGJ 57-2016剧场建筑设计规范

本规范适用于新建、扩建和改建的剧场建筑设计。

JGJ/T 131-2012体育场馆声学设计及测量规程

本规程适用于新建、扩建、改建体育场馆的声学设计和声学测量，也适用于既有体育场馆的声学测量。

TB/T 3138-2018机车车辆用材料阻燃技术要求

本标准规定了铁路机车车辆用材料阻燃技术要求及试验方法。本标准适用于高运行速度不大于200 km/h的铁路机车及客车。

TB/T 3264-2011动车司机座椅

本标准规定了动车司机座椅的使用条件、技术要求、试验方法、检验规则以及标志、包装、运输和贮存等。本标准适用于动车司机座椅，其他机车车辆司机座椅可参照使用。

ITU-R BS.1387-1 SPANISH-2001感知音频质量的客观测量方法

The ITU Radiocommunication Assembly considering that conventional objective methods (e.g. for measuring signal-to-noise ratio and distortion) are no longer adequate for measuring the perceived audio quality of systems which use low bit-rate coding schemes or which employ analogue or digital signal processing; that low bit-rate coding schemes are rapidly being deployed; that not all implementations conforming to a specification or standard guarantee the best quality achievable with that specification or standard; that formal subjective assessment methods are not suitable for continuous monitoring of audio quality, e.g. under operational conditions; that objective measurement of perceived audio quality may eventually complement or supersede conventional objective test methods in all areas of measurement; that objective measurement of perceived audio quality may usefully complement subjective assessment methods; that, for some applications, a method which can be implemented in real time is necessary.

DIN 1320-2009声学.术语

This document specifies the terminology of acoustics. It contains general terms and definitions as well as terms and definitions from other realms of acoustic.

DIN EN 61649-2009魏布尔分析

This International Standard provides methods for analysing data from a Weibull distribution using continuous parameters such as time to failure, cycles to failure, mechanical stress, etc. In this standard, numerical methods and graphical methods are described to plot data, to make a goodness-of-fit test, to estimate the parameters of the two- or three-parameter Weibull distribution and to plot confidence limits. Guidance is given on how to interpret the plot in terms of risk as a function of time, failure modes and possible weak population and time to first failure or minimum endurance.

DIN EN ISO 105-B02-2014纺织品.色牢度试验.第B02部分:耐人造光色牢度:氙弧灯试验(ISO 105-B02-2014).德文版本EN ISO 105-B02-2014

This part of ISO 105 specifies a method intended for determining the effect on the colour of the textiles of all kinds and in all forms to the action of an artificial light source representative of natural daylight (D65). The method is also applicable to white (bleached or optically brightened) textiles. This method allows the use of two different sets of blue wool references. The results from the two different sets of references may not be identical.

DIN EN ISO 10808-2011纳米技术.在吸入暴露室中测试纳米粒子吸入毒性的特征(ISO 10808-2010);德文版本EN ISO 10808-2010

This International Standard specifies requirements for characterization of airborne nanoparticles in inhalation exposure chambers for the purpose of inhalation toxicity studies in terms of particle mass, size distribution, number concentration and composition.

DIN EN ISO 12572-2017建筑材料和制品湿热性能.水蒸气扩散特性的测定.杯式法(ISO 12572-2016);德文版本EN ISO 12572-2016

This document specifies a method based on cup tests for determining the water vapour permeance of building products and the water vapour permeability of building materials under isothermal conditions. Different sets of test conditions are specified. The general principles are applicable to all hygroscopic and non-hygroscopic building materials and products, including insulation materials and including those with facings and integral skins. Annexes give details of test methods suitable for different material types. The results obtained by this method are suitable for design purposes, production control and for inclusion in product specifications.