TB/T 1436.1-2008 in English

Standard Overview and Technological Evolution

TB/T 1436.1-2008 is a mandatory standard for the railway industry, replacing the two old standards TB/T 1436-2002 and TB/T 2564-1995. The main technical changes of the new standard include:

Key technical requirements

4.7 Performance indicators

The standard proposes 14 core indicators for lubricating oil filter:

• Filtration efficiency: ≥98% interception rate for 30μm particles
• Initial pressure difference: ≤70kPa (at flow rate 40L/min)
• Burst pressure: ≥700kPa
• Durability: Efficiency decreases by ≤3% after 192h continuous test

Key points for detection implementation

6.1 Test method

Based on GB/T 2828.1-2003 for sampling inspection, key tests include:

Standard implementation suggestions

1. During the transition period between the old and new standards, the 14 performance differences in Article 4.7 should be focused on.
2. It is recommended to establish a filter life prediction model, and optimize the replacement cycle in combination with 192h durability data.
3. The marking requirements in Chapter 5 of this standard should be clearly cited in the procurement technical agreement.