A61 化学计量 标准查询与下载

JJG 820-1993 手持糖量(含量)计及手持折射仪检定规程

Verification Regulation of Hand Saccharimeter(Content-meter)and Hand Refractometer

JJG 823-1993 离子色谱仪检定规程

Verification Regulation for Ion Chromatograph

JJG 845-1993 原棉水份测定仪检定规程

Verification Regulation of Raw Cotton Moisture Tester

JJG 826-1993 二级标准分流式湿度发生器检定规程

Verification Regulation for Secondary Standard Divided Flow Humidity Generator

JJG 847-1993 滤纸式烟度计检定规程

Verification Regulation of Filter-Type Smokemeters

JJG 846-1993 光散射式数字粉尘测试仪检定规程

Verification Regulation of Digital Dust Measuring Meter of Light Scattering Method

ASTM E896-92(2005)e1 进行含水直接光解试验的标准试验方法

1.1 This test method describes procedures for obtaining information on direct photolysis rates, quantum yields, and phototransformation products of materials in an aqueous environment. Laboratory testing procedures designed to provide estimates of environmental rates of photolysis are described.1.2 A three-tiered approach is described. The testing procedures are designed to provide basic and easily obtainable information in the first tier. More detailed and costly experiments are proposed in the second and third tiers. This approach is thought to be more scientific and cost-effective than one which provides for no sequential assessment. It is not within the scope of this test method to provide decision points to move from one tier to the next. The degree of testing should be decided as part of an overall exposure assessment in which the importance of photolysis is weighed with respect to other transformation routes.1.3 These procedures are designed to be applicable to all types of materials. However, tests on formulations and commercial products that are complex mixtures of materials with diverse physical and chemical properties may require isolation of individual compounds prior to testing to eliminate indirect photochemical reactions. With slight modification, these procedures should meet the needs of most investigators.1.4 In developing this test method an attempt was made to balance the needs and costs against the scientific considerations and reliability of results. Major considerations were: (1) that the procedures generate precise, accurate, and environmentally relevant data, and (2) that the procedural requirements be as flexible as possible without destroying this integrity of the data and the ability to compare interlaboratory results.1.5 Since all details are not covered in this test method, successful execution of the described tests will require some training or experience in the area of photolysis. Familiarity with the material in the references is essential. Detailed descriptions on conducting similar test procedures have been published by the U.S. Environmental Protection Agency (1, 2).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 specific hazard statements, see Section 6.

Standard Test Method for Conducting Aqueous Direct Photolysis Tests

JJG 757-1991 离子计检定规程

Verification Regulation for Ionometer

JJG 758-1991 罗维朋比色计检定规程

Verification Regulation of Lovibond Comparable Colorimeter

JJG 742-1991 恩氏粘度计检定规程

Verification Regulation of Engler Viscosimeter

JJG 743-1991 流出杯式粘度计检定规程

Verification Regulation of Flow Cups Viscosimeter

JJG 748-1991 示波极谱仪检定规程

Verification Regulation of Oscilloscopic Polarograph

JJG 761-1991 电极式盐度计检定规程

Verification Regulation of Electrode Type Salinometer

JJG 715-1991 水质综合分析仪检定规程

Verification Regulation for Water Quality Synthetical Analyse Instrument

JJG(核工) 1-1991 含氢正比计数管（工作级）检定规程

Hydrogen Proportional Counter Tube (Working Grade) Verification Regulations

STAS 6908/3-1990 气态氢质子．电位分析法测定硫化氢和硫醇硫的含量

Prezentul standard stabile?te determinarea hidrogenului sulfurat ?i a sulfului mercaptanic prin metoda poten?iomstric?. Metoda poten?iometric? se aplic? la hidrocarburi gazoase lipsite de oxigen, pe ntru con-iautul de comou ?i 3a sulf de mix. 50 n m3?i

Gaseous hydroc arbcrs. Hydrogen sulph. Buffers. Shapes and dimensions

JJG 694-1990 原子吸收分光光度计

Atomic Absorption Spectrophotometer

JJG 689-1990 紫外、可见、近红外分光光度计

UV-VIS-NIR Spectrophotometer

JJG 679-1990 冷原子吸收测汞仪检定规程

Verification Regulation of cold Atomic Absorption Analyzer of Mercury

JJG 682-1990 双光束紫外可见分光光度计检定规程

Verification Regulation of Double Beam UV-VIS Spectrophotometers