@pindac, @whart, and any others reading,
Thank-you for the kind words.
Keep in-mind that what I present is a process - not a single chemistry. My aqueous process is centered around pre-clean, rinse, final-clean, rinse and is the industry standard for precision cleaning with aqueous cleaner and as the book states Chapter II:
The manual precision aqueous vinyl record cleaning procedure detailed by this document began with the cleaning process used by the United States Library of Congress to clean delicate lacquer records. That procedure was then modified following the fundamentals developed for MIL-STD-1330D Precision Cleaning and Testing of Shipboard Oxygen, Helium, Helium-Oxygen, Nitrogen, And Hydrogen Systems and MIL-STD-1622B Standard Practice for Cleaning of Shipboard Compressed Air Systems.
To refresh: I developed MIL-STD-1330D and MIL-STD-1622B as well as the jointly patented cleaning agent - Navy Oxygen Cleaner (NOC), and if you were to read NASA procedures for aqueous cleaning of high-pressure oxygen, you would see similar pre-clean, rinse, final clean, rinse processes.
So, I present a 'process', not a single chemical. The book presents various options for pre-cleaner and final cleaner chemistry, and as the book states: All cleaning procedures specified herein are presented as only “a” way to clean a record. No claim is made there is only one way to approach the process. All methods & procedures specified here present opportunity for experimenting with different cleaning agents, different cleaning brushes, different drying cloths, and different cleaning equipment.
So, this whole hoopla has nothing to do with someone else's chemistry which the concept of alcohol + nonionic surfactant is nothing new. If you read VIII.15.1 London Jazz Collector™ (LJC) LJC home recipe for vacuum record cleaning machines | LondonJazzCollector (wordpress.com) he indicates it's for vacuum record cleaning machines and does not recommend allowing to just evaporate to prevent leaving dissolved contaminants. And if you analyze his formula (by volume), it's as follows: 25% IPA & 250 ppm nonionic surfactant (likely at 8 x CMC).
The formula provided by @wizzzard is by weight 22% ethanol and 0.038% Tergitol 15-S-7 which ~380 ppm which is 10 x CMC. If you review and understand Table XIII Hansen Solubility Parameter Record Polymers & Solvents, you will see the differences between 100% IPA and 100% Ethanol. Based on @wizzzard 'credentials' it should be child's-play for him to do a comparison of two formulas - IPA + Tegitol 15-S-9 (which are inexpensive & easy obtained) and Ethanol + Tergitol 15-S-7 (which may not as inexpensive or as easily obtained); and hopefully he could put this in both 'by-weight' and 'by-volume' to make it more accessible to the average person and let people decide for themselves.
But, because I have a name, and you can find me, for liability reasons I will not make any recommendation for use of alcohol above 2.5%. Additionally, I am not here to formulate cleaning agents - I let others do that. Otherwise, my background in some of the most intensive quality assurance programs in world (Navy SUBSAFE The U.S. Navy’s Submarine Safety Standards (bsee.gov) & Deep Submergence Diver Life Support) and my development of the MIL-STDs to clean high-pressure oxygen and life support systems and the need to have every final cleaner approved by a three-panel medical board (toxicology, internal medicine & industrial health) have left me acutely sensitive to being protective of human health. If I am to be criticized for being overly protective - guilty as charged. So, I will advise of the risk - beyond that you are free to take as many risks as you wish but you are at least fully aware; that is my policy.
So, myself and @wizzzard are fundamentally different - he is presenting a chemistry, I am presenting a 'process'; and it's my experience with developing and implementing (world-wide) precision cleaning processes - that to effectively clean a record - you need a process, and every process be it manual cleaning, manual-cleaning with vacuum assistance or ultrasonic cleaning, and combinations thereof require a variation of the chemistry for best results.
Beyond that, I am not here to defend or promote my process. The book goes into excruciating detail trying to explain the whys behind the process including a deep dive (Chapter XI) into just how clean the record needs to be to extract all the music it contains. If you agree, that's great, if you don't, that's OK. I am selling nothing and make no income from the book, and it was a good exercise to keep my skillsets high when I 'was' retired - no more, back to work and I really do not have the time anymore to expend as I have in the past. So, this is likely my last post on this forum.
Take care and stay-well,
Neil Antin
PS/Given the state of affairs in cyber-space, I have adopted the 'zero-trust' cyber position, and consequently, I am now being very careful as to just what personally identifiable information (PII) I disclose.