English — Forum #723 (Page 195/642)

1. What are the aspects of industrial technical services in modern chemical enterprises? - HCBBS Forum
2. Factors affecting nitrogen oxides in sulfur flue gas - HCBBS Forum
3. Water for analysis and testing laboratories - HCBBS Forum
4. 【Daily Topic】【Engineering Version 20160717】 - HCBBS Forum
5. air trap and steam trap ~ - HCBBS Forum
6. Why does the app for uploading Gif animations on my phone close immediately? - HCBBS Forum
7. I have a question regarding the consumption tax on coal-to-oil projects - HCBBS Forum
8. A large amount of white, viscous foam that is difficult to break forms in the MBR tank. - HCBBS Forum
9. News from the air separation industry, 20160719: Civil work completed for the Yingde utility gas island project in Jingmen Industrial Park - HCBBS Forum
10. Cylinder liner issues - HCBBS Forum
11. Replacement of lintels at openings in masonry structures - HCBBS Forum
12. Question 70, Morning Session, Day 1 of the 2014 Registered Chemical Engineer Professional Examination - HCBBS Forum
13. What is string testing, also known as wire swallowing test? - HCBBS Forum
14. Investment for 20,000 NM3/h air separation unit - HCBBS Forum
15. 【Daily Topic】【Civil Engineering Version 20160723】 - HCBBS Forum
16. TFT spent acid treatment technology - HCBBS Forum
17. The origin and development of accident causation theory - HCBBS Forum
18. How long does it take for the internal recirculation in the AO process for wastewater treatment to reach half? - HCBBS Forum
19. I have a question for everyone: why is it necessary to remove air during the pressure test of valves? What are the consequences of not emptying it? - HCBBS Forum
20. swell - HCBBS Forum
21. What are the maximum allowable temperatures for the bearings of a centrifugal pump and the stator of its motor? What happens if it’s too high? - HCBBS Forum
22. Sign-in record post from July 16, 2016 - HCBBS Forum
23. Kerosene hydrogenation issue - HCBBS Forum
24. 【Daily Question】 2016 07 15 Hydrogenation Sector - HCBBS Forum
25. Issues regarding the layout of distribution rooms in explosion-proof factories - HCBBS Forum
26. What consequences will arise if a company without the necessary qualifications provides drawings to the owner, who then proceeds with construction based on those drawings? ? - HCBBS Forum
27. Material selection in mixed acid media - HCBBS Forum
28. Issues related to design qualifications - HCBBS Forum
29. How should the exhaust gas treatment section of the sulfur recovery unit be designed in terms of technical approach? - HCBBS Forum
30. A question from the Work Safety Law - HCBBS Forum
31. Regarding the string tests for equipment, which devices need to undergo these tests? How to do it? - HCBBS Forum
32. Gasketing and lining - HCBBS Forum
33. Evaporator leak in refrigeration unit - HCBBS Forum
34. Compilation of technical documentation on German E+H instruments - HCBBS Forum
35. Seeking a general contractor for waste cutting fluid treatment - HCBBS Forum
36. Can instruments such as thermometers and pressure gauges used for installing plastic pipes be connected using threads? - HCBBS Forum
37. Problems in continuous distillation of two columns - HCBBS Forum
38. Issues with current and pressure of the double-suction pump, as well as the amount of acid added - HCBBS Forum
39. Which zirconia analyzer is suitable for sulfuric acid manufacturers? - HCBBS Forum
40. How about using double seals for high-risk pumps? - HCBBS Forum
41. Sealing issue of liquid chlorine storage tanks - HCBBS Forum
42. The COD of the effluent from the aeration tank is unstable - HCBBS Forum
43. I don’t understand - HCBBS Forum
44. Regarding the issue of the 12.5 parameter for manufacturing deviations in steel pipes - HCBBS Forum
45. I would like to ask about instrument air compressors, oil-free and low-oil types: what are their advantages and disadvantages in terms of operation, maintenance, and cost efficiency? - HCBBS Forum
46. China’s largest methanol-co-produced LNG project comes online in Xiaoyi - HCBBS Forum
47. Question 10 from the 11-year case study: a question on physical chemistry - HCBBS Forum
48. What should the reading be when the pH meter is stable? - HCBBS Forum
49. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； July 17th - HCBBS Forum
50. Optimal control temperature for drying with 98% sulfuric acid - HCBBS Forum
51. Can a check valve be used as an intake and exhaust valve? - HCBBS Forum
52. How to implement a fieldbus for passive meter applications using the Hart protocol 4-20mA? - HCBBS Forum
53. Safety Technology Exchange Edition: Daily Question (2016.7.18) - HCBBS Forum
54. I would like to ask everyone about issues related to alarm confirmation and alarm thresholds - HCBBS Forum
55. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； July 22 - HCBBS Forum
56. 【Daily Question】Deep Processing 20160728: What is \"cavitation\"? - HCBBS Forum
57. Number of valves installed on the same pipeline - HCBBS Forum
58. 【Daily Topic】【HVAC Version 20160723】 - HCBBS Forum
59. Regarding the theoretical plate number - HCBBS Forum
60. The issue of stress-relief heat treatment thickness - HCBBS Forum
61. Issues related to continuous distillation - HCBBS Forum
62. A brief analysis of fault handling for mass flow meters - HCBBS Forum
63. I have a question regarding the issue of hoses breaking easily! ! - HCBBS Forum
64. There is water in the float flow meter - HCBBS Forum
65. Question 16 from the morning session of the 2014 Chemistry Examination real questions - HCBBS Forum
66. What is the proportion of costs for natural gas pipeline inspection? - HCBBS Forum
67. GBT6536-2010 grouping issue - HCBBS Forum
68. Shanghai Kent Flow Meters - HCBBS Forum
69. Are there instruments that can monitor level, temperature, pressure, and flow simultaneously? - HCBBS Forum
70. 【Weekly Topic】【Storage & Transportation Version 20160727】 - HCBBS Forum
71. A craftsman must first sharpen his tools if he is to do his work well – Simplified Chinese version of the Heat Exchanger Software Series - HCBBS Forum
72. Ranking of domestic manufacturers of low-temperature valves - HCBBS Forum
73. Test voting post - HCBBS Forum
74. 【Daily Question】 2016 07 16 Hydrogenation Sector Multiple-choice Question - HCBBS Forum
75. There is a storage tank with an operating pressure of 3 Kpa; how should the operating pressure for the vent valve be determined? How is the design pressure of storage tanks determined? - HCBBS Forum
76. Device parameters - HCBBS Forum
77. For the 2016 “Shandong Province Work Safety Training and Assessment” exam, what score is required to pass? - HCBBS Forum
78. Environmental Protection Daily Post – July 18: Reward for participation; an additional 5 rewards for answering 3 questions correctly - HCBBS Forum
79. Determination of treatment parameters for fluorine-containing wastewater - HCBBS Forum
80. Help: After the DO output from the DCS, how does it flow in the electrical circuit? - HCBBS Forum
81. Question: In metallurgy, what is the aluminum allocation coefficient and how is it calculated? - HCBBS Forum
82. What are the definitions of amorphous sulfur and polymeric sulfur respectively? - HCBBS Forum
83. PCS7 V8.1 SP1 software download - HCBBS Forum
84. Who has the methods for debugging bus positioners, as well as the debugging software? - HCBBS Forum
85. Start/stop of metering pump - HCBBS Forum
86. Where does the moisture come from? - HCBBS Forum
87. What is the effect of BYD catalyst particle size on operating time? - HCBBS Forum
88. Questions about absorption. Please provide the process - HCBBS Forum
89. Furnace pressure values for API-standard heat transfer oil furnaces - HCBBS Forum
90. Question: Analysis of the blockage issue in the condenser return pipe (with reaction principle) - HCBBS Forum
91. Stress analysis of long-distance pipelines - HCBBS Forum
92. 【Picture of the Day】2016 07 25 What is the device in this picture? - HCBBS Forum
93. Given that the fluid properties are not under standard conditions, how can the enthalpy value of this fluid under standard conditions be determined? - HCBBS Forum
94. Compressor sensor brand - HCBBS Forum
95. Investigating the mutual solubility of thiosulfate an and ammonium thiocyanate in water at different temperatures - HCBBS Forum
96. Determination of oil in alkaline solution - HCBBS Forum
97. Fire hazard of sodium hypochlorite aqueous solutions - HCBBS Forum
98. The basic essence of Internet+ - HCBBS Forum
99. Butanol recovery issues in the BDO production process - HCBBS Forum
100. Regarding residual C5 - HCBBS Forum