Water Dispenser Wash Cloth Squeezer
SQUEEZER BAG (ENCLOSED IN COVER)
FILTER (IN POCKET)
- Figure 2.2.11.3«. WMC Water Dispenser/Squeezer
per month were allocated for compartment and trash disposal airlock cleaning. Each soap bar measured 1 by 2 by 3 in. (25 by 50 by 75 mm and contained Neutrogena, which acts as a mild antibacterial agent. Imbedded in the center of each soap bar was a stainless steel disc which provided a restraining mechanism for the soap when mated with the magnetic soap holders in the handwasher.
The handwasher contained four of these post-type soal holders, three for crewman soap restraint and one for the soap used in compartment and equipment cleaning.
Ihe total soap provision of 55 bars was made readily available to the crew, in a soap module installed above the tissue dispenser in the WMC (Figure 2.2.11.3-2). The soap module was an Armalon bag compartmentized by dividers into eight segments. Each segment contained approximately seven soap bars banded together with a velcro-lined strap. The crewman used the strap to feed the bars of soap into an accessible position at the front of the module. After removal from the module, the soap was transferred to the handwasher for in-use x'estraint. At the end of each two-week period, the in-use soap was disposed of in a trash bag. Testing - There were three line item tests performed for personal hygiene:
Line Item HS 17 Personal Hygiene Subsystem Qualification
Line Item HS 33 Cleansing Solution Test
Line Item HS 7k Biocide Wipe Packet Assembly
The Personal Hygiene Subsystem Qualification Test Line Item HS-17 (ltl8l*30-l TCD, Log 3299 CTCA, TM-DSV7-SSL-R-6993-TC) consisted of functional testing of various items of personal hygiene equipment, towel dispenser, washcloth dispenser, tissue and wipe dispensers, soap dispenser, towel and washcloth drying restraints, toothbrush and dental cream stowage restraints trash bag container. All testing was conducted under ambient conditions in the High Fidelity mockup or in a simulated locker compartment. During the course of testing, the following Failure Reports, F0UU02, FOUl+2^, and F0M06 were initiated against the washcloth dispenser, toothbrush/dental cream stowage restraint and the trash bag container, respectively.
The failure reports on the washcloth dispenser states that additional velcro fastener tape is required to keep the washcloth dispenser in place during the removal of washcloths, using one hand operation. Additional velcro tape was added to washcloth and towel dispensers.
Toothbrush and dental cream restraints failed due to lack of tension capability. The metal restraints were rebuilt using 1/2 hard stainless steel.
The personal hygiene subsystem hardware: 1B83297 Towel Dispensers 1B80720 Washcloth Dispensers 1B80900 Tissue and Wipe Dispensers 1B86303 Soap Dispenser
1B80705 Towel and Washcloth Drying Restraints
1B80604 Toothbrush/Dental Cream Restraints . 1B8O905 Trash Bag Containers 1B82542 General Purpose Trash Bags This hardware was qualified for use in the Orbital Workshop. Their qualificaton is achieved in part by the functional testing of HS-17 because of hardware similarity.
The trash bag container has two retainer springs which provides a locking device to retain the general purpose trash bags. These two retainer springs lacked preload and therefore failed to retain trash bag in use position. The springs were redesigned. After the above corrective actions were implemented testing continued to completion and no further anomalies were experienced. The conclusion of HS-17 testing program pro/ed that all dispensers functioned smoothly during a one-handed operation, and all restraints adequately retained its hardware within the compartments.
The following tests were performed in Line Item HS 33 test: (1T17782 TCD, Log 2860 CTCA, TM-DSV7-SSL-R-6993 TC):
1. Optimum liquid retention (water transport capability) of the Apollo washcloth.
2. Optimum quantities of water and cleansing agent required to perform OWS astronaut body cleansing activities.
3. Effectiveness of different soap forms (liquid, gel, solid) and to develop procedures associated with their use. Drying rates of Apollo washcloths at different relative humidities.
The following are the conclusions of HS 33:
1. The optimum liquid retention of the Apollo washcloth is
100 cc.
2. For total body cleansing the material requirements were
1 washcloth, 2 rinse cloths, 1 towel, 320 cc of water and 3.4 gms of bar soap or 310 cc of water and 15 cc of liquid soap.
3. Both liquid and bar soap forms are suitable for use. Other forms are less desirable. Procedures associated with soap forms required usage of washcloth for water transport. A hand water transport technique was evaluated and found adequate for partial (but not total) body washing.
4. Washcloth drying rate (water weight vs. time) differs between 9.8 grams per hour at 40 percent relative humidity) and 6.8 grams per hour at 80 percent relative humidity.
Based on the results below of the Qualification Tests, Line Item HS ?4 (1T43425 TCD, Log 3536 CTCA; TM-DSV7-SSL-R-6993 TC) tests have satisfactorily demonstrated: (l) the OWS Biocide Wipes Dispenser, and the OWS Biocide Wipes retained all functional qualities after exposure at the OWS launch pressure profile; (2) the available iodine loss rate during a prolonged storage period at ambient temperatures was highly acceptable for the 1B91023-503 Biocide Wipes, questionable for the -501 wipes, and unacceptable for the -1 wipes.
On the basis of superior iodine retention properties, the -503 Biocide Wipes are selected for Skylab flight usage.
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