| Standard_ID | HG 21591.2-1995 (HG21591.2-1995) |
| Description (Translated English) | Sight Glass Type Glass Plate Level Gauge (PN0.6) |
| Sector / Industry | Chemical Industry Industry Standard |
| Classification of Chinese Standard | G91 |
| Classification of International Standard | 71.12 |
| Word Count Estimation | 8,000 |
| Date of Issue | 11/27/1996 |
| Date of Implementation | 3/1/1997 |
| Quoted Standard | HG 21588-1995 |
| Summary | This standard specifies the visual mirror glass level gauge of the type, size, technical requirements and instructions for use. Depending mirror glass level gauge (PNO. 6) There are three models, the design temperature of 250 ��, the design pressure of 0. 6MPa, corrosion allowance specified in Table 1. 0. 1. |