A46 天文学 标准查询与下载

GB/T 38242-2019 月球与行星近景摄影测量相机地形测量能力地面验证试验规范

Specification of the ground verification test for the topographic measurement capability of the lunar and planet close-range photogrammetry camera

GB/T 37846-2019 空间高能天文数据存档格式

Definition of archived data format for space-based high-energy astronomy

GB/T 37541-2019 月球地形图要素分类、代码与图式

Classification,codes and symbols for the features of lunar topographic map

GB/T 35440-2017 空间高能天文辐射源命名规范

Specifications concerning designations for space high-energy astronomical radiation sources

GB/T 34055-2017 月球数字高程模型数据制作规范

Production specifications of lunar digital elevation model

GB/T 34054-2017 月球影像平面图制作规范

Specifications for lunar image plan making

GB/T 33990-2017 月球数字地图质量检查与验收

Inspection and acceptance for lunar digital map quality

GB/T 33997-2017 月球与行星数据产品格式规范

Specification of lunar and planetary data products format

GB/T 33991-2017 月球信息要素数据字典

Data dictionary for lunar information essentials

GB/T 33998-2017 月球信息元数据

Lunar information metadata

GB/T 33996-2017 月球探测数据产品分级与命名

Hierarchy and nomenclature of lunar exploration data products

GB/T 33661-2017 农历的编算和颁行

Calculation and promulgation of the Chinese calendar

GB/T 32521-2016 月球基本比例尺地形图分幅和编号

本标准规定了月球基本比例尺地形图的分幅和编号，给出了多种比例尺地形图图幅编号和图幅经度、纬度计算公式与示例。 本标准适用于1:2 500 000、1:1 000 000、1:500 000、1:250 000、1:100 000、1:50 000、1:25 000和1:10 000等8种比例尺月球地形图(以下简称“地形图”)的分幅和编号。

Subdivision and numbering for the lunar primary scale topographic maps

GB/T 30112-2013 月球空间坐标系

本标准规定了月球探测及其数据处理相关的坐标系,包括坐标系的原点、尺度、定向及其随时间演变的一系列协议、算法和常数,并定义了相关坐标系之间的转换关系。本标准适用于月球探测的数据获取、数据处理以及科学研究。

The lunar coordinate system

EN 14034-4:2004+A1:2011 尘埃云的爆炸特性的测定.第4部分:尘埃云的氧浓度下限的测定

This document describes a test method for the determination of the limiting oxygen concentration of dust clouds in a closed vessel under defined initial conditions of pressure and temperature. This method is not suitable for use with recognised explosives, like gunpowder and dynamite, substances which do not require oxygen for combustion, pyrophoric substances, or substances or mixtures of substances which may under some circumstances behave in a similar manner. Where any doubt exists about the existence of hazard due to explosive properties, expert advice should be sought.

Determination of explosion characteristics of dust clouds - Part 4: Determination of the limiting oxygen concentration LOC of dust clouds

EN 14034-1:2004+A1:2011 尘埃云的爆炸特性的测定.第1部分:尘埃云的最大爆炸压力值的测定

This document describes a test method for the determination of the maximum explosion pressure of dust clouds in a closed vessel under defined initial conditions of pressure and temperature. This method is not suitable for use with recognised explosives, like gunpowder and dynamite, substances which do not require oxygen for combustion, pyrophoric substances, or substances or mixtures of substances which may under some circumstances behave in a similar manner. Where any doubt exists about the existence of hazard due to explosive properties, expert advice should be sought.

Determination of explosion characteristics of dust clouds - Part 1: Determination of the maximum explosion pressure pmax of dust clouds

DB44/T 839-2010 汽车装饰用皮革材料中挥发性有害有机物的测定

本标准规定了汽车装饰用皮革(包括天然皮革、人造革、合成革)中六种挥发性有害有机物的测定方法。

Determination of Volatile Harmful Organic Compounds in Leather Materials for Automotive Upholstery

SAE ARP210-2007 日志式通用定义(大气环境温度-压力特征曲线)

"Hot Day", "Tropical Day", "Standard Day", "Polar Day" and "Cold Day" are part of the lexicon of the aircraft industry. These terms are generally understood to refer to specific, generally accepted characteristics of atmospheric temperature versus pressure altitude. There are also other, less well-known days, defined by their frequency of occurrence, such as "1% Hot Day", "10% Cold Day", or "Highest Recorded Day". These temperature characteristics have their origins in multiple sources, including U.S. military specifications which are no longer in force. This document is intended to preserve the commonly used day types in an accessible form for future use, make recommendations for their consistent usage, and collect the data in a single format.

Definition of Commonly Used Day Types (Atmospheric Ambient Temperature Characteristics Versus Pressure Altitude)

ASTM E104-02 用水溶液保持相对恒定湿度的标准实施规程

Standard value relative humidity environments are important for conditioning materials in shelf-life studies or in the testing of mechanical properties such as dimensional stability and strength. Relative humidity is also an important operating variable for the calibration of many species of measuring instruments.1.1 This practice describes one method for generating constant relative humidity (rh) environments in relatively small containers.1.2 This practice is applicable for obtaining constant relative humidities ranging from dryness to near saturation at temperatures spanning from 0 to 508212;C.1.3 This practice is applicable for closed systems such as environmental conditioning containers and for the calibration of hygrometers.1.4 This practice is not recommended for the generation of continuous (flowing) streams of constant humidity unless precautionary criteria are followed to ensure source stability. (See Section 9.)1.5 Caution-Saturated salt solutions are extremely corrosive, and care should be taken in their preparation and handling. There is also the possibility of corrosive vapors in the atmospheres over the saturated salt solutions.1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For more specific safety precautionary information see 1.5 and 10.1.

Standard Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions

ASTM D6176-97(2003) 用电阻温度感应器测量表面大气温度的标准规程

Applications8212;Ambient atmospheric temperature measurements can be made using resistance thermometers for many purposes. The application determines the most appropriate type of resistance thermometer and data recording method to be used. Examples of three typical meteorological applications for temperature measurements follow. 4.1.1 Single-level, near-surface measurements for weather observations (1)3 , thermodynamic computations for industrial applications, or environmental studies (2). 4.1.2 Temperature differential or vertical gradient measurements to characterize atmospheric stability for atmospheric dispersion analyses studies (2). 4.1.3 Temperature fluctuations for heat flux or temperature, or variance computations, or both. Measurements of heat flux and temperature variance require high precision measurements with a fast response to changes in the ambient atmosphere. Purpose8212;This practice is designed to assist the user in selecting an appropriate temperature measurement system for the intended atmospheric application, and properly installing and operating the system. The manufacturerrsquo;recommendations and the U.S. Environmental Protection Agency handbook on quality assurance in meteorological measurements (3) should be consulted for calibration and performance audit procedures.1.1 This practice provides procedures to measure representative near-surface atmospheric (outdoor air) temperature for meteorological purposes using commonly available electrical thermometers housed in radiation shields mounted on stationary or portable masts or towers.1.2 This practice is applicable for measurements over the temperature range normally encountered in the ambient atmosphere, -50 to +50176;C.1.3 Air temperature measurement systems include a radiation shield, resistance thermometer, signal cables, and associated electronics.1.4 Measurements can be made at a single level for various meteorological purposes, at two or more levels for vertical temperature differences, and using special equipment (at one or more levels) for fluctuations of temperature with time applied to flux or variance measurements.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Practice for Measuring Surface Atmospheric Temperature with Electrical Resistance Temperature Sensors