ISO 721:1991 PDF
Rock drilling equipment — Integral stems
Rock drilling equipment — Integral stems
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 4
- Дата публикации:
- 17 января 1991 г.
- Издание:
- ISO IS 721 edition 2 version 1
- ICS:
- 73.100.30
Specifies the dimensions. The 19 mm hexagonal integral stems with forged collared shank shall comply with the dimensions shown in figure 1 and given in table 1. The 22 mm stems shall comply with the dimensions shown in figure 2 and given in table 2. The 25 mm stems shall comply with the dimensions shown in figure 3 and given in table 3.
Abstract
Overview
ISO 721:1991 - Rock drilling equipment - Integral stems is an international standard that specifies the for hexagonal monobloc (integral) drill stems used in rock drilling. Published as the second edition in 1991 (technical revision of ), the standard defines the form and dimensional compatibility for with a , referencing the drawings (figures 1–3) and corresponding tables (tables 1–3) for exact dimensions.
Похожие стандарты
Стандарты, упомянутые в описании