GB/T 5555-2003 Test method for acid resistance of surfactants

This standard is a revision of GB/T 5555-1985, which specifies the test method for the acid resistance of surfactants and is applicable to the test of the acid resistance of water-soluble surfactants. GB/T 5555-2003 Test method for the acid resistance of surfactants GB/T5555-2003 Standard download decompression password: www.bzxz.net

GB/T 5555—2003
This standard is not equivalent to TG10172:1951 in terms of the method for determining the resistance of textiles to the preparation of prescriptions. The technical differences of this standard 55-surface agent test method G1985 are as follows:
This standard and GBT55
change the reagents used in the standard: silver acid and sintering agent used in the standard into 1 volume fraction according to the original standard flash resistance. The difference in efficiency is less than that of the standard. The Chinese and English names of the standard are adapted. The content of the test report is added:
Transferred to GB/TL.1
20HU, now delayed "compilation salary.
This standard is effective from the date of implementation. The same generation recommends GH15555-1995. This standard is also proposed by the Chinese Chemical Industry Association of China. The standard is under the jurisdiction of the Technical Committee for Standardization of Surfactants. The drafting unit of this standard is Shanghai Dongfang Material Construction Institute. The main drafters of this standard are Shi Jufen and Chan Yongbin. This standard was first issued in _5. 1 Scope Surfactants Acid resistance test method This standard is a test method for the solubility of surfactants. This standard focuses on the test of the resistance of surfactants to water droplets. 2 Principle GH/T5555-20C3 The hydrolysis of some surfactants is not the same as that of the original product. Therefore, the changes in the performance of the surfactant in the late water separation can be judged from the changes in the performance of the liquid. 3 Reagents and materials
3. System preparation liquid: analysis, volume fraction is 103.2 Formic acid drop liquid: analysis: volume fraction is 1%.4 Requirements and equipment
General laboratory with hanging device
4.1 Back to bottom calcination, 231>:
4.2 Spherical condenser!
2.3 Electric water heater: temperature range (37-100℃:.5 Method
5.1 Preparation of sample solution
5.1.1 Take 2g sample and 0.1g of sample. 5.1.2 Take 100g of sample solution. 5.2 Preparation
5.2.1 Add 5ml sample solution to 3250ml bottles respectively. 11ml T. After deducting the previous and the unused samples, the total amount is 20. Then add 1ml sample solution (1ml) and 34ml solution (3.3>34r1). Acid concentration (%.1) 5.5ml. Liquid recovery rate (3.2) 8.5 The third burnt book confirmed acid reduction (4..): 1.0m. and acid drop wave (3.?> 17. (. After the acid is tested, the appearance of the effect is tested first, then heated to boiling, refluxed, and the flow time is 30rin, GrEn, 1 drink is tested once a day, and the drop is recorded. Finally, the temperature of the pool is allowed to stop, and the test is tested again. The temperature of the pool is changed to 63 and then the sample is scalded. The test station adopts the narrow test method: 5.2.2 and 5.3, 1 are replaced by the same steps. The sample is dissolved in the same machine. 1,27 The evaluation rate of the 6 nests is described in the following 6.1 Daily test rating standard
| grade - relatively complete shrinkage Total disinfection:
Deep immersion: to slight
Level 2--No dew or oily matter left; Level 2-3
No matter whether the liquid is clear or not, there is no dew or oily matter left CB/5555-2J03
6.2 Evaluation
After the two concentrations of the sample are tested with acid at 1000 nm concentration, the grading standard is 5.1 to determine the level of acid resistance, which can be divided into the highest acid resistance level, level 2, and the other 4 levels of instantaneous acid resistance, which are determined as follows: High-instantaneous acid resistance--After the test with acid at 1000 nm concentration, the result reaches level 1 or after overnight storage, it reaches level 1. ~2 level: over-age level - after medium concentration acid test, it reaches 1 or 1-2 level in the bad level; conditional pre-level - after medium concentration acid test, it reaches 2 or 2-level in the rating and reaches 3 level after low concentration acid test
non-attached Fu Shun
test report
after the lowest concentration of the test, it reaches 3 flow. The test report should include the following:
the name of the vehicle under test;
5) this standard number, Chinese code:bzxz.net
e) the use of the instrument;
special conditions in the test
differences from this method:
test period,
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