1.1本指南涵盖了分析软件应用中色谱数据协议的实施。本协议的实施需要: 1.1.1规范 E1947 ，其中包含完整的数据定义集。色谱数据协议不基于任何具体实施；它被设计为独立于任何特定的实现，因此实现可以随着技术的发展而变化。该协议分阶段实现，以通过实际使用加快其接受速度。 1.1.2规范 E1947 包含数据通信协议内容的完整描述，包括色谱测试大多数方面的分析信息类别和数据元素及其属性。 1.2分析信息类别是将标准化过程分解为更小、更易于管理的部分的一种实用便利。开发人员更容易建立共识，并基于较小的信息集生成工作系统，而不需要所有类别中包含的数百个数据元素的负担和复杂性。这些类别还帮助供应商和最终用户在其计算环境中使用指南。 1.3 NetCDF数据交换系统是用于以独立于计算机架构和最终用户应用程序的方式在应用程序之间通信数据的容器。 本质上，它是为数据交换设计的一种特殊类型的应用程序。 1.4色谱通用数据语言（CDL）模板是交换色谱数据集的语言规范。通过使用NetCDF实用程序，该人类可读模板可用于生成分析应用程序中输入和输出数据所需的等效二进制文件和软件子程序调用。 ====意义和用途====== 通用编码准则 — NetCDF库作为源代码提供给开发人员。作为供应商应用程序的一部分，最终用户将收到编译后的二进制形式的库。 一些供应商发现，由于数组指针通过其边界，因此需要在MS-DOS上的Microsoft Windows下使用大内存模型进行编译。许多供应商选择编写转换程序作为独立的DOS应用程序，因此转换程序仅使用文本模式屏幕输入/输出。一些供应商现在在其MS Windows应用程序中使用它。 打算编写程序将其数据文件转换为色谱数据协议的开发人员应使用NetCDF实用程序ncgen和ncdump。将ncgen实用程序应用于CHROMSTD。CDL模板将生成创建NetCDF文件所需的框架代码。然后，程序员可以修改代码以创建一个程序，该程序从另一个供应商处读取netDCF文件。 开发人员创建NetCDF文件后，应使用ncdump程序生成数据文件的ASCII表示，并对其进行检查，以确保数据正确放入文件中。 为NetCDF库和实用程序生成文件 — 一般来说，编译很简单。make文件在从Unidata Corporation收到后进行了修改，因为它们不是第一次在PC上编译的。使Unidata发行版在DOS上运行所需的更改如下:( 1. )将文件MAKEFILE重命名为UNIX。MK，和( 2. )重命名MSOFT。MK到MAKEFILE，然后运行NMAKE。Unidata分发中的默认开关使用浮点协处理器和Microsoft Windows选项的开关。 该协议包含一些在DOS上运行的Microsoft C V6.0的完整makefile示例。有关编译器和链接器选项的确切含义，请参阅Microsoft C V6.0编译器手册。 VMS和SunOS编译指令位于这些操作系统的目录中。

1.1 This guide covers the implementation of the Chromatographic Data Protocol in analytical software applications. Implementation of this protocol requires: 1.1.1 Specification E1947 , which contains the full set of data definitions. The chromatographic data protocol is not based upon any specific implementation; it is designed to be independent of any particular implementation, so that implementations can change as technology evolves. The protocol is implemented in stages, to speed its acceptance through actual use. 1.1.2 Specification E1947 contains a full description of the contents of the data communications protocol, including the analytical information categories with data elements and their attributes for most aspects of chromatographic tests. 1.2 The Analytical Information Categories are a practical convenience for breaking down the standardization process into smaller, more manageable pieces. It is easier for developers to build consensus and produce working systems based on smaller information sets, without the burden and complexity of the hundreds of data elements contained in all the categories. The categories also assist vendors and end users in using the guide in their computing environments. 1.3 The NetCDF Data Interchange System is the container used to communicate data between applications in a way that is independent of both computer architectures and end-user applications. In essence, it is a special type of application designed for data interchange. 1.4 The Common Data Language (CDL) Template for Chromatography is a language specification of the chromatography dataset being interchanged. With the use of the NetCDF utilities, this human-readable template can be used to generate an equivalent binary file and the software subroutine calls needed for input and output of data in analytical applications. ====== Significance And Use ====== General Coding Guidelines — The NetCDF libraries are supplied to developers as source code. End users receive the libraries in compiled binary form as part of a vendor's application. Some vendors found that compilation using the huge memory model under Microsoft Windows on MS-DOS was needed because of an array pointer passing its boundary. Many vendors chose to write a conversion program as a stand-alone DOS application, whereby the conversion program used only text-mode screen I/O. Some vendors are now using it in their MS-Windows applications. Developers setting out to write a program to convert their data files to the Chromatographic Data Protocol should use the NetCDF utilities ncgen and ncdump. Applying the ncgen utility to the CHROMSTD.CDL template will generate the skeletal code needed to create the NetCDF file. The programmer can then modify the code to create a program that reads the netDCF file from another vendor. After developers create the NetCDF file they should use the ncdump program to generate the ASCII representation of the data files, and examine it to ensure the data is being correctly put into the file. Make Files for NetCDF Libraries and Utilities — In general the compilation is straightforward. The make files were modified after they were received from the Unidata Corporation, because they did not compile the first time on PCs. The changes needed to get the Unidata distribution to run on DOS are ( 1 ) rename the file MAKEFILE to UNIX.MK, and ( 2 ) rename MSOFT.MK to MAKEFILE, and then run NMAKE. The default switches in the Unidata distribution use the switches for the floating point coprocessor and Microsoft Windows options. The protocol contain some complete makefile examples for Microsoft C V6.0 running on DOS. The Microsoft C V6.0 compiler manual should be consulted for the exact meaning of the compiler and linker options. The VMS and SunOS compilation instructions are in directories for those operating systems.