目 录
1 范围··························································································…… (1)
2 概述··························································································…… (1)
3 计量性能要求·...................................................................................(3)
3.1 测微读数系统的行差·································································…… (3)
3.2 测微读数系统的空程··································································…… (3)
3.3 校正块的90。角误差 ··································································…… (3)
3.4 V棱镜两通光端面的平行差和V形槽90。角误差 ······························…… (3)
3.5折射率测量误差········································································……(3)
3.6 折射率测量重复性·····································································…… (3)
4 通用技术要求··············································································…… (3)
4.1 外观·······················································································…… (3)
4.2 仪器附件·················································································…… (3)
4.3 光学系统成像质量·····································································…… (3)
4.4 视差··························································。····························…… (4)
4.5 平行差·····················。······························································…… (4)
5 计量器具控制·························································。····················…… (4)
5.1检定条件·················································································…… (4)
5.2 检定项目··············································……，’’··························…… (4)
5.3 检定方法···，·········、······、·················‘·、·······················，·······一 (4)
5.4 检定结果的处理········································································…… (8)
5.5 检定周期·················································································…… (8)
附录A 常用折射液的折射率及配制方法 ·············································…… (9)
附录B 测微读数系统行差检定记录和计算实例 ····································…… (io)
附录c 测微读数系统的空程检定记录和计算实例 ·································…… (it)
附录D V棱镜折射仪检定记录格式 ······························。····················…… ( iz)
附录E V棱镜折射仪检定证书、检定结果通知书内页格式 ·。···。···············…… (17)
附录F 检定结果的测量不确定度评定实例 ·······················。················。·…… (18)
3 计f性能要求
3.1 测微读数系统的行差
度盘最小分度值的名义值 S与测微读数系统相应测量范围S'之差，称为测微读数
系统的行差，以符号P表示。
仪器测微读数系统的行差不得大于1.8"o
3.2 测微读数系统的空程
测微读数系统空程以对度盘同一刻线，用测微手轮旋进与旋出方向对准读数的差值
h来表示。
仪器测微读数系数的空程不得大于3"0
3.3 校正块的00。角误差
校正块的90。角示值误差不得大于t 10".
3.4 V棱镜两通光端面的平行差和V形槽900角误差
V棱镜两通光端面的平行差不得大于30"; V型槽900角的示值误差不得大于*10"0
3.5 折射率测量误差
各谱线的折射率测量误差不得大于士5x10"'"
3.6 折射率测量重复性
折射率测量重复性不得大于 1x10-'o
4 通用技术要求
4
外观
4
折射仪应标有仪器名称、型号、编号、生产日期、制造厂名，应有安全性以及
强制性标记等。
4.1.2 光学零件表面不应有霉斑、脱膜、脱胶、划痕等疵病。
4.1.3 折射仪及附件表面的涂镀层应平整、均匀，不应有划痕、斑迹、脱漆或脱皮等
缺陷。外部零件接合处应整齐，无粗糙不平现象。
4.1.4 仪器各机械部分应平稳转动，无卡滞或跳动现象，锁紧部分应能有效自锁。
4.2 仪器附件
4.2.1 仪器应配有厂家提供的配套的V棱镜及其校正块，相应的谱线灯、灯源、滤光
片。
4.2.2 仪器应配有仪器说明书、折射率计算用表等必要的技术资料。
4.3 光学系统成像质量
所有光学系统成像应清晰，视场内亮度均匀，不应有由杂光引起的亮背景和明显的
重影 。
