ISO 8655-2:2002 ピストン式容積測定装置—パート2：ピストンピペット | ページ 2

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, 3.

Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this part of ISO 8655 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

International Standard ISO 8655-2 was prepared by Technical Committee ISO/TC 48, Laboratory glassware and related apparatus, Subcommittee SC 1, Volumetric instruments.

ISO 8655 consists of the following parts, under the general title Piston-operated volumetric apparatus:

• Part 1: Terminology, general requirements and user recommendations
• Part 2: Piston pipettes
• Part 3: Piston burettes
• Part 4: Dilutors
• Part 5: Dispensers
• Part 6: Gravimetric methods for the determination of measurement error

The following part is under preparation:

• Part 7: Non-gravimetric methods for the determination of measurement error

Annex A forms a normative part of this part of ISO 8655. Annex B is for information only.

Introduction

ISO 8655 addresses the needs of:

• suppliers, as a basis for quality control including, where appropriate, the issuance of supplier's declarations;
• test houses and other bodies, as a basis for independent certification;
• users of the equipment, to enable routine checking of accuracy.

The tests specified should be carried out by trained personnel.

1 Scope

This part of ISO 8655 specifies

• metrological requirements,
• maximum permissible errors,
• requirements for marking and
• information to be provided for users,

for air-displacement (type A) and positive-displacement (type D) single-channel and multi-channel piston pipettes, complete with their selected tip(s) and any other essential, consumable parts, designed to deliver their specified nominal volume (Ex).

2 Normative references

The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 8655. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 8655 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards.

3 Terms and definitions

For the purposes of this part of ISO 8655, the terms and definitions given in ISO 8655-1 and the following apply.

Bibliography