ISO 648:2008 specifies metrological and constructional requirements for volumetric pipettes with one mark (total delivery) and for volumetric pipettes with two marks, both of which are adequate for general laboratory purposes. The details specified are in conformity with the principles of design and construction of volumetric glassware given in ISO 384.
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Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Basis of adjustment
4.1 Unit of volume
4.2 Delivery volume
4.3 Reference temperature
5 Types and classes of accuracy
5.1 Classes of accuracy
5.2 Types of single-volume pipette
6 Maximum permissible errors
7 Construction
7.1 Material
7.2 Shape
7.3 Bulb
7.4 Dimensions
7.5 Top of pipette
7.6 Delivery jet
7.7 Delivery time
7.8 Waiting time
8 Graduation line(s)
9 Setting of the meniscus
10 Marking
11 Visibility of graduation lines, figures and inscriptions
ISO 1769:1975 Laboratory glassware -- Pipettes -- Colour coding
ISO 3696:1987 Water for analytical laboratory use -- Specification and test methods
ISO 384:1978 Laboratory glassware -- Principles of design and construction of volumetric glassware
ISO 1769:1975 Laboratory glassware -- Pipettes -- Colour coding
ISO 3696:1987 Water for analytical laboratory use -- Specification and test methods
ISO 384:1978 Laboratory glassware -- Principles of design and construction of volumetric glassware
ISO 719:1985 Glass -- Hydrolytic resistance of glass grains at 98 degrees C -- Method of test and classification