ISO 4785:1997
Laboratory glassware — Straight-bore glass stopcocks for general purposes
Laboratory glassware — Straight-bore glass stopcocks for general purposes
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 7
- Дата публикации:
- 1 мая 1997 г.
- Издание:
- ISO IS 4785 edition 1 version 1
- ICS:
- 71.040.20
Abstract
Overview
ISO 4785:1997 specifies requirements, dimensions and construction details for straight-bore glass stopcocks for general laboratory use. It defines two series of nominal bore sizes, ground‑zone geometry and surface-finish limits, material recommendations and marking/designation rules to ensure reliable, interchangeable stopcocks used in chemical and analytical laboratories.
Key topics and technical requirements
- Two series of nominal bores
- Series I:
Похожие стандарты
Стандарты, упомянутые в описании