G85 其他化工产品综合 标准查询与下载

ISO 418:2001 摄影 冲洗用化学品 无水亚硫酸钠规范

This International Standard establishes criteria for the purity of photographic-grade anhydrous sodium sulfite andspecifies the tests to be used to determine the purity.

Photography - Processing chemicals - Specifications for anhydrous sodium sulfite

ISO 3627:2001 摄影 冲洗用化学品 无水焦亚硫酸钠规范

This International Standard establishes criteria for the purity of photographic-grade anhydrous sodium metabisulfite and specifies the tests to be used to determine the purity.

Photography - Processing chemicals - Specifications for anhydrous sodium metabisulfite

ISO 6145-2:2001 气体分析 用动态容量法制备标定用混合气体 第2部分：容量泵

This part of ISO 6145 specifies a method for the continuous production of calibration gas mixtures, containing two or more components, from pure gases or other gas mixtures by use of commercially available multi-piston, volumetric pumps. Pumps of this type may be employed to prepare gas mixtures in which the volume fractions of the gaseous components in the complementary gas range from 0,1 % upwards; the relative expanded uncertainty of measure-ment, U, obtained by multiplying the relative combined standard uncertainty by a coverage factor k = 2 is not greater than 0,5 %. Lower concentrations may be obtained by cascading volumetric pumps, and the lowest volume fraction achievable by means of a two-pump cascade is 10. Moreover, if pre-mixed gases are used instead of pure gases, much lower concentrations can be obtained. The merits of this method are that a large quantity of the gas mixture can be prepared on a continuous basis, and that multicomponent mixtures can also be readily prepared.

Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 2: Volumetric pumps

ISO 6143:2001 气体分析 测定并检查标定用混合气体成分的比较方法

This International Standard provides methods for — determining the composition of a calibration gas mixture by comparison with appropriate reference gas mixtures, — calculating the uncertainty of the composition of a calibration gas mixture in relation to the known uncertainty of the composition of the reference gas mixtures with which it was compared, — checking the composition attributed to a calibration gas mixture by comparison with appropriate reference gas mixtures, — comparing the composition of several calibration gas mixtures, e.g. for the purpose of comparing different methods of gas mixture preparation, or for testing consistency among gas mixtures of closely related composition. NOTE In principle, the method described in this document is also applicable to the analysis of (largely) unknown samples instead of prospective calibration gas mixtures (i.e. gas mixtures which are intended for use as calibration gas mixtures). Such applications, however, require appropriate care and consideration of additional uncertainty components, for example concerning the effect of matrix differences between the reference gases used for calibration and the analysed sample.

Gas analysis - Comparison methods for determining and checking the composition of calibration gas mixtures

ISO 6145-7:2001 气体分析 用动态容量法制备标定用混合气体 第7部分：热质流控制仪

This part of ISO 6145 specifies a method for the continuous production of calibration gas mixtures, containing two or more components, from pure gases or other gas mixtures by use of commercially available thermal mass-flow controllers. By adjustment of set-points on flow controllers to pre-determined values, it is possible to change the composition of the gas mixture rapidly and in a continuously variable manner. By selection of appropriate combinations of thermal mass-flow controllers and with use of pure gases, the volume fraction of the component of interest in the complementary gas can be varied by a factor of 1 000. The relative expanded uncertainty of measurement, U, obtained by multiplying the relative combined standard uncertainty by a coverage factor, k = 2, is not greater than 2 %. If pre-mixed gases are used instead of pure gases, mole fractions below 10 can be obtained. The measurement of mass flow is not absolute and the flow controller requires independent calibration. The merits of the method are that a large quantity of the gas mixture can be prepared on a continuous basis and that multi-component mixtures can be prepared as readily as binary mixtures if the appropriate number of thermal mass-flow controllers is utilized. Gas blending systems, based upon thermal mass-flow controllers, and some including the facility of computerization and automatic control, are commercially available.

Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 7: Thermal mass-flow controllers

ISO 6145-9:2001 气体分析 用动态容量法制备标定用混合气体 第9部分：饱和法

This part of ISO 6145 specifies a method for the continuous production of calibration gas mixtures with a component which is easily condensable. In most cases the relative expanded uncertainty occurring on the volume fraction is less than 1 %.

Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 9: Saturation method

ISO 6145-5:2001 气体分析 用动态容量法制备标定用混合气体 第5部分：毛细管校准仪器

This part of ISO 6145 specifies a technique for the continuous production of calibration gas mixtures from pure gases or gas mixtures using capillary devices in single or multiple combinations (gas dividers). Single capillary systems can be used to provide gas mixtures where the minor component is in the range of volume fractions from 10 to 0,5. The relative repeatability of this technique is approximately 2 %. This application is used in industrial gas mixing panels for the production of specific gas atmospheres. Gas dividers can be used to divide gas mixtures prepared from gases or gas mixtures into controlled proportions by volume. These devices are capable of dilutions in the range of volume fractions from 0,1 to 0,9 of the primary gas with a relative repeatability of better than 0,5 %. Traceability of the gas mixtures produced by a gas divider can be achieved by comparison of a mixture at the higher and lower end of the range with gas mixtures related to national or international gas standards. An example is given in annex A.

Gas analysis - Preparation of calibration gas mixtures using dynamic volumetric methods - Part 5: Capillary calibration devices

JIS K 4810:2001 炸药的试验方法

Testing methods of explosives

DLA MIL-DTL-87934 A-2001 (充满的)分子筛干燥剂

This specification covers one type of sodium alumina-silicate molecular sieve desiccant.

DESICCANT, MOLECULAR SIEVE (IMPREGNATED)

JIS K 4800:2000 爆药的技术术语

この規格は，火薬関係で用いる主な用語とその定羨について規定する。

Technical terms for explosives

ISO 5990:2000 摄影 冲洗用化学品 650g/L的亚硫酸钾溶液规范

This International Standard establishes criteria for the purity of photographic-grade potassium sulfite, 650 g/l aqueous solution, and specifies the tests to be used to determine the purity.

Photography - Processing chemicals - Specifications for potassium sulfite, 650 g/l solution

ISO 3629:2000 摄影 冲洗用化学品 焦亚硫酸钾规范

This International Standard establishes criteria for the purity of photographic-grade potassium metabisulfite and specifies the tests to be used to determine the purity.

Photography - Processing chemicals - Specifications for potassium metabisulfite

BS 4559-4:2000 校正用混合气体的制备方法.混合气体制备证书

This International Standard specifies requirements for certificates for pure gases and for certificates for homogene-ous gas mixtures to be used as calibration gases. This International Standard specifies the minimum information (mandatory data) required and additional information (optional data) recommended for characterizing a pure gas, or a homogeneous gas mixture, supplied under pressure in a cylinder or other container. This International Standard does not cover the field of safety-relevant data and re-lated labelling. Two different formats are considered for the information specified by this International Standard: — a certificate, i.e., a document uniquely related to the container; and — a certificate extract, i.e., a document affixed to the container.

Methods for preparation of calibration gas mixtures - Certificate of mixture preparation

HG/T 20663-1999 化工粉体产品计量、包装及码垛系统设计规定

1.0.1为了统一化工粉粒产品计量、包装及码垛系统工程设计的原则和标准，更好地贯彻执行国家的技术经济政策和技术标准，进一步提高设计水平和设计质量，加快设计进度，特制定本规定。 1.0.2本规定适用于大、中型化工企业的新建或扩建工程的袋装化工粉粒产品计量、包装及码垛系统的设计。小型化工企业及其它行业建设工程的袋装粉粒产品计量、包装及码垛系统设计也可参照使用。 1.0.3化工粉粒产品计量、包装及码垛系统的设计应结合工程实际，吸取国内外先进技术经验，采用成熟的新工艺、新设备，遵守劳动安全卫生和环境保护的有关规定，力求做到技术先进、布置合理、运行可靠、操作安全、维护方便、经济实用。 1.0.4化工粉粒产品计量、包装及码垛系统的设计应根据全厂生产规模的远景规划，全面规划、分期建设，留有扩建余地。若通过技术经济比较确认分期建设不合理时，亦可一次建成。在扩建设计时，应结合原有生产系统的实际情况，充分发挥原有设施的能力。 1.0.5化工粉粒产品计量、包装及码垛系统设计，除应符合本规定外，尚应符合国家现行的有关标准的规定。

Specification on Design of Metro-Measuring Packaging and Palletizing System for Chemical Powder-Granule Products

BS 7954:1999 珠状干燥活性铝氧粉规范

This British Standard specifies requirements for beaded activated alumina for use as a desiccant. NOTE This material is suitable for use in compressed gas drying equipment and for use in packages requiring protection from water vapour.

Beaded desiccant activated alumina - Specification

ISO 3626:1996 摄影 冲洗用化学品 硫氰酸钾规范

This International Standard establishes criteria for the purity of photographic-grade potassium thiocyanate and specifies the test methods to be used to determine the purity.

Photography - Processing chemicals - Specifications for potassium thiocyanate

ISO 3622:1996 摄影 冲洗用化学品 硫氰酸铵规范

This International Standard establishes criteria for the purity of photographic-grade ammonium thiocyanate and specifies the test methods to be used to determine the purity.

Photography - Processing chemicals - Specifications for ammonium thiocyanate

ISO 3629:1996 摄影术.加工照片用化学药品.偏亚硫酸氢钾规范

Photography - Processing chemicals - Specifications for potassium metabisulfite

ISO 5990:1996 摄影术.加工照片用化学药品.浓度为650g/l的亚硫酸钾水溶液规范

Photography - Processing chemicals - Specifications for potassium sulfite, 650 g/l aqueous solution

DLA A-A-55298-1996 金刚钻海事战斗发生

This commercial item description covers the requirements for a collapsible, diamond shaped, day maiitime signal for use as displays on ships to wain other vessels to stay clear of operations being conducted, such as: undeiwater operations, towing, etc.

SHAPE, DAY, MARITIME, DIAMOND