ISO 389-1 2017 Acoustics Reference zero for the calibration of audiometric equipment Part 1 Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
ISO 23386 2020 Building information modelling and other digital processes used in construction — Methodology to describe, author and maintain properties in interconnected data dictionaries.pdf
ISO IEC 19075-8 2021 Information technology — Guidance for the use of database language SQL — Part 8 Multidimensional arrays.pdf
ISO 1920-12 2015 Testing of concrete — Part 12 Determination of the carbonation resistance of concrete — Accelerated carbonation method.pdf
ISO TS 15666 2021 Acoustics — Assessment of noise annoyance by means of social and socio-acoustic surveys.pdf
ISO 23646 2022 Soil quality — Determination of organochlorine pesticides by gas chromatography with mass selective detection (GC-MS) and gas chromatography with electron-capture detection (GC-ECD).pdf
ISO 129-4 2013 Technical product documentation (TPD) — Indication of dimensions and tolerances — Part 4 Dimensioning of shipbuilding drawings.pdf
ISO 2624 1990 Copper and copper alloys — Estimation of average grain size.pdf
ISO 17777 2016 Welding consumables — Covered electrodes for manual metal arc welding of copper and copper alloys — Classification.pdf
ISO 17736 2010 Workplace air quality — Determination of isocyanate in air using a double-filter sampling device and analysis by high pressure liquid chromatography.pdf
ISO 636 2024 Welding consumables Rods wires and deposits for tungsten inert gas welding of non-alloy and fine-grain steels Classification.pdf
GB-T 30214-2013 飞机 操纵钢索用带球轴承非金属滑轮 尺寸和载荷.pdf
GB-T 4019.1-1997 方柱立式钻床 精度检验 第1部分 几何精度检验.pdf
GB-T 15288-1994 抑制射频干扰整件滤波器 第二部分 分规范 试验方法的选择和一般要求.pdf
GB-T 43543-2023 漱口水.pdf
GB-T 5271.23-2000 信息技术 词汇 第23部分 文本处理.pdf
GB-T 11313.33-2001 射频连接器 第33部分 BMA系列射频连接器分规范.pdf
GB-T 39547-2020 机械指示表的设计和计量特性.pdf
GB-T 3668.3-1983 组合机床通用部件 回转工作台和回转工作台用多边形中间底座尺寸.pdf
GB-T 13419-1998 电子设备用机电开关 第6部分 微动开关分规范.pdf
GB-T 30499-2014 内河船 手动紧缆绞车 安全要求和主要尺寸.pdf