SH/T 0451-1992 Test method for storage stability of liquid lubricants

AI-translated method card — human verification pending. This is not an official translation of the standard. Unclear source values remain unverified; check the original standard and product certificate before use.

Card type: Test method

1. Method number / full name / English name / replacement relationship

• Method number: SH/T 0451-92
• Full name: Test method for storage stability of liquid lubricants
• English name: not provided in the available source
• Replacement relationship: replaces SY 4027-84
• Equivalent adoption: United States Federal Test Method Standard FS 791 C 3465.1 (1986) "Test method for storage stability of liquid lubricants" (original text as such, the year number is suspected to be 1986, requires confirmation against the source standard (source-text extraction))

2. Scope of application and non-applicability

• Scope of application: This standard specifies the test method for storage stability of aviation turbine lubricating oils and hydraulic oils; it is applicable to the determination of the storage stability of aviation turbine lubricating oils and hydraulic oils.
• Non-applicability: not provided in the available source.

3. Method principle

Store the sample at 24℃±3℃ in the dark for 1 years, then observe changes in its uniformity.

4. Reagents and materials (purity / preparation)

• 3.1 Aluminum foil: commercially available.
• 3.2 Washing powder: commercially available.
• Purity, preparation: not provided in the available source.

5. Instruments and equipment

• 4.1 Storage room: constant temperature 24℃±3℃, free from vibration (such as vibration caused by transportation vehicles).
• 4.2 Transparent glass bottle: 5L, wide-mouth with cap.

6. Recommended operating conditions

• Storage temperature: 24℃±3℃.
• Storage time: 1 years.
• Storage environment: dark place, free from vibration.
• Other: not provided in the available source.

7. Sampling and sample preparation

• 5 Sample: sample about 4L.
• Other preparation requirements: not provided in the available source.

8. Analysis procedure

• 6.1 Scrub the bottle and cap with washing powder, then rinse first with tap water, then with distilled water, and finally dry in air (may also be dried in an oven at 105℃).
• 6.2 Line the bottle cap with aluminum foil.
• 6.3 Pour about 4L of sample into the glass bottle and tightly close the cap.
• 6.4 Wrap the bottle with aluminum foil to isolate the sample from light.
• 6.5 Mark the sample in the glass bottle (including sample type, storage date, and other useful notes).
• 6.6 Store the sample in the storage room at 24℃±3℃ for one year.
• 6.7 After one year, remove the bottle from the storage room and peel off the aluminum foil.
• Note: Do not shake or stir the sample in the bottle.

9. Qualitative and quantitative and calculation formulas

• Expression of test results: visually inspect the sample and report whether the sample has turbidity, sediment, suspended matter, discoloration, or other changes in uniformity.
• Calculation formula: not provided in the available source.

10. Precision

not provided in the available source.

11. Report

Visually inspect the sample and report whether the sample has turbidity, sediment, suspended matter, discoloration, or other changes in uniformity. (The original text does not list a separate "Report" section; this content is found under "Expression of test results")

12. Referenced documents

• United States Federal Test Method Standard FS 791 C 3465.1 (1986) "Test method for storage stability of liquid lubricants" (equivalent adoption, original text as such, year number requires confirmation against the source standard (source-text extraction))
• Other referenced documents: not provided in the available source.

13. Source and verification

This page is an AI translation of the available Chinese method card. Human verification is pending. It is not an official translation of the standard. Check the source standard and product certificate before use.

14. Quick reference Q&A