Document k919YyvMgrxvYeq7x8ExKoNGE

TENNECO Chemicals, Inc. / P.O. Box 116 Plastics Division Burlington, N. J, 08016 609-386-9200 September 16, .1971 Mr. R. K. Simmons Diamond Shamrock Technical Service Center P.O. Box 191 Painsville, Ohio 44077 Dear Mr. Simmons: Under separate cover we are forwarding to you three samples of your sodium carbonate. Each sample is from a different bag. Unfortunately no lot numbers were noted on the bags. In addition;, we have enclosed for your information the test method for ferro magnetic contamination. We are looking forward to hearing from you. Very truly yours ^ivi ts[ ]rf[ VCcLsl, FWK/sys cc: Herb Carr Vy:j^ Fred W. Kanzler COLORITE 014296 TENNECO Chemicals, Plastics fInc. if&/ P.O.Box 116 Division Burlington, N. J. 08016 609-386-9200 September 15, 19Y1 Mr. James Corley Celanese Chemical Company P.0. Box 58009 Houston, Texas Dear Mr, Corly: Based on our telephone conversation with Mr. Morton of your New York office, we arc forwarding to you, via KEA air express, two (2) samples of VAcM. We certainly appreciate your cooperation in analyzing these samples. As mentioned to Mr. Morton, we are interested in the levels of the aldehydes as well as the amount of hydroquinone and the acidity of the samples. Should you have any questions, please feel free to con tact me. Thanks again for your cooperation* Very truly yours TENNECO PLASTICS DIVISION Tenneco Chemicals, Inc. FWK/Jt cc: H.B. Carr P.W. Kanzler COLORITE 014297 September 10 * 1971 Mr. Keith Galloway how Chemical Company Building 37^ Midland* Michigan 48640 Dear Mr. Galloway: As you requested at our meeting in Piscataway* New Jersey in August* we are enclosing a copy of our metallic contam ination test method. We hope that* through use of this method* you will be able to provide necessary support to your processing peopled effort in reducing metallic contamination in your methocel. If there are any questions* feel free to contact me. Very truly yours* TENNECO PLASTICS DIVISION Tenneco Chemicals* Inc. Enclosure. HBC/jt cc: H.R. Horton F.W. Kanzler H.B. Carr, Manager Quality Control COLORITE 014298 TENNECO PLASTICS DIVISION TENHECO CHEMICALS, INC. QUALITY CONTROL TESTING METHOD DATE: September, 3.971 METHOD NO,: 2-3 TITLE: Contamination Using Syntron Vibrator SCOPE: This test has been designed to determine the con tamination level in resins and raw materials. The contamination may appear as dark specks or other foreign contaminants. A count of the specks is made as the resin or raw material flows down a Syntron vibrator chute. A magnet is placed at the end of the Syntron chute to collect ferro magnetic particles. The ferro magnetic particles adhering to paper-covered shim stock seated against the mag netic poles are counted. APPARATUS: 1. Syntron Vibra Flow Feeder (Model F-T01A, Syn tron Co., Homer City, Pa.) with gate installed in the vibrator, 6 inches from the back and 0.017 inch clearance. 2. Magnet (Cat. JO, 8l0, Edmund Scientific, Inc.., Barrington, N.J. 08007). 3. Lamp (Burton Model 1300) or equivalent. 4. Balance, with a readout to +0.1 gm. 5. Paper, light blue. CHEMICALS: Resin or raw material to be tested. PROCEDURE: 1. In a dirt- and dust-free area, set up the Syn tron and the light source on a firm level table. 2. The gate of the chute of the vibrator shoul.d be 6 inches from back side of inclined vibrator end. (This enables the total resin to be added all at once.) 3- The gate must be set with a feeler gauge to 0.03.7 inch clearance, which is equivalent to a COLORITE 014299 METHOD NUMBER 2-3 REPORT: ^10 mesh screen size. (if adjustments are needed, the lab supervisor must be notified.) ^. Weigh individually 100 grams of. sample for the visual contamination chock and one-pound sample for the ferro magnetic chock. Perform each test by separately pouring the samples into.the chute. Note: Make sure the paper on the magnet is cleaned of magnetic particles between each run. 5. Place a container at the end of the Syntron to catch the sample flowing down the vibrator, 6. Turn on the vibrator, 7. As the material vibrates down the chute, make a count of all contamination particles. Check the magnet for ferro magnetic contamination and take a count. Note: A small screw driver may be used to as sist in counting and confirming the ferro magnetic nature of the particles adhering to the magnet. This is accomplished by approaching the contaminant in question and if it Is ferro magnetic It will be at tracted by the screw driver. Number of total contamination over magnetic count. Example: 5 total contaminants counted, of which 2 were found on the magnet: report as fol lows: 5/2. Attachment. H.B. Carr Manager - Quality Control REASON FOR REVISION: Change in SCOPE, APPARATUS and PROCEDURE. SUPERSEDES ISSUE OF: August, 1971 COLORITE 014300 \ 'l . ) Sire. Vnivo (X X X t'. ,X' u ( Xw Tof V'lEUO COLORITE 014301 INTER-OFFICE MEMO TENNECO CHEMICALS, INC To Route List At from h.B. Carr At Burlington Subject Change to Testing Method 2-7 date September 10, 1971 copy to Distribution Listed Above Attached is a revision to be placed in Section 2 of your Quality Control Manual, The revision showed a change in SCOPE, APPARATUS and PROCEDURE. This issue supersedes the one dated August, 1971. Please discard your obsolete issue and insert the current one. Attachment HBC/Jt H.B. Carr COLORITE 0X4302 TENNECO PLASTICS DIVISION TENNECO CHEMICALS, INC. QUALITY CONTROL TESTING METHOD DATE: September, 1971 METHOD NO.: 2-3 TITLE: Contamination Using Syntron Vibrator SCOPE: This test has been designed to determine the con tamination level in resins and raw materials. The contamination may appear as dark specks or other foreign contaminants. A count of the specks is made as the resin or raw material flows down a Syntron vibrator chute. A magnet is placed at the end of the Syntron chute to collect ferro magnetic particles. The ferro magnetic particles adhering to paper-covered shim stock seated against the mag netic poles are counted. APPARATUS: 1. Syntron Vibra Flow Feeder (Model F-T01A, Syn tron Co., Homer City, Pa.) with gate installed in the vibrator, 6 inches from the back and 0.017 inch clearance. 2. Magnet (Cat. 70, 8l0, Edmund Scientific, Inc., Barrington, N.J. 08007). 5. Lamp (Burton Model 1300) or equivalent. *1-. Balance, with a readout to +0.1 gm. 5. Paper, light blue. CHEMICALS: Resin or raw material to be tested. PROCEDURE: 1. In a dirt- and dust-free area, set up the Syn tron and the light source on a firm level tabic. 2. The gate of the chute of the vibrator should be 6 inches from back side of inclined vibrator end (This enables the total resin to be added all at once.) 3. The gate must be set with a feeler gauge to 0.017 inch clearance, which is equivalent to'a COLORITE 014303 2 METHOD HUMBER 2-5 REPORT: 40 mesh screen size. (If adjustments are needed, the lab supervisor must be notified.) 4. Weigh individually 100 grams of sample for the visual contamination check and one-pound sample for the ferro magnetic check. Perform each test by separately pouring the samples into the chute. Note: Make sure the paper on the magnet is cleaned of magnetic particles between each run. 5- Place a container at the end of the Syntron to catch the sample flowing down the vibrator. 6. Turn on the vibrator. 7. As the material vibrates down the chute, make a count of all contamination particles. Check the magnet for ferro magnetic contamination and take a count. Note: A small screw driver may be used to as sist in counting and confirming the ferro magnetic nature of the particles adhering to the magnet. This is accomplished by approaching the contaminant in question and if it is ferro magnetic it will be at tracted by the screw driver. Number of total contamination over magnetic count. Example: 5 total contaminants counted, of which 2 were found on the magnet: report as fol lows: 5/2. Attachment. i__ -- H.B. Carr Manager - Quality Control REASON FOR REVISION: Change in SCOPE, APPARATUS and PROCEDURE. SUPERSEDES ISSUE OF: August, 1971 COLORITE 014304 SOEtTO ailHOIOD Sice Viewj : ' / Tat VlG-i-O