ISO 1769-1975 - 中外标准 - - 1975/9 - 现行
A system of color coding is specified for one-mark pipettes for identification of nominal capacities, and for graduated pipettes for identification of nominal capacities and unit of subdivision. The color code bands for the different capacities are tabled and the method of marking is specified. Suitable requirements and test methods for the durability of the colours are intended to be considered at a later date.
色码实验室玻璃器皿移液管Colour codesLaboratory glasswarePipettes
ISO 641-1975 - 中外标准 - - 1975/9 - 现行
The requirements deal with the geometric charateristics to ensure interchangeability. The dimensions of the joint-ground zone and the outer diameter of the tube connected to the joint are given in a table and illustrated in a drawing. In addition the surface finish is specified. A system of gauges (stell balls) for testing the ball cup is tabled. In the annex a method of testing the leakage including the apparatus is described.
特性连接工艺气体尺寸直径连接实验室器皿实验室玻璃器皿单刻度移液管锥形连接实验室设备互换性几何特性试验DiameterDimensionsGasesInterchangeabilityJoining processesJointsLaboratory equipmentLaboratory glasswareLaboratory warePropertiesTapered jointsTestingTests
ISO 1772-1975 - 中外标准 - - 1975/9 - 现行
Three types of crucibels are specified: Type 1, low form, type 2 medium form and type 3 tall form bases an a height/diameter ratio of 0,63; 0,8 and 1,25 resp. Further two types of lid are described: type D, a lid of slightly domed shape and typ R, a recessed lid. Material and construction are specified, shape and dimensions are shown in drawings and in a table.
实验室玻璃器皿规范二氧化硅坩锅实验室器皿工业瓷器坩锅(实验室)名称与符号Crucibles (laboratory)DesignationsDimensionsHard porcelainLaboratory apparatusLaboratory glasswareLaboratory wareLidsMarkingMaterialsPorcelainShapeSilicon dioxideSpecification (approval)SpecificationsTolerances (measurement)
ISO 1775-1975 - 中外标准 - - 1975/9 - 现行
The requirements specify the quality of the material. The different methods of test are specified. They concern the porosity and imperfections of glaze, the resistance to heat and sudden change in temperature, the resistance of glaze to high temperature, to acid and to alkali and the constancy of mass on ignition.
试验耐酸试验耐碱性实验室玻璃器皿高温试验实验室器皿热试验工业瓷器Acid-resistance testsAlkali resistanceHigh-temperature testingLaboratory apparatusLaboratory glasswareLaboratory wareMaterialsPorcelainSpecification (approval)TestingThermal testing