Document Z8p39k6V5Dekx0XoN0b7pmw7Y
FORM P 6054
TECHNICAL CHANGE ORDER
APPLICABLE TO:
CERTAIN
description:
CERTAIN-TEED PRODUCTS CORPORATION
PIPE DIVISION
Standard Purchasing Specification No. 501
DATE OF issue:
May 15, 1968
Pulverized Silica
1 PURPOSE 1. Test procedures that are described in Certain-teed "Standard Test Methods" have been deleted from the purchasing specification. 2. The filterability test requirement has been eliminated. 3. "Table B" has been revised to be in accord with most recent particle size distribution requirements. h. The list of approved vendors has been revised. 3. A silica lot reject procedure has been added in the addendum.
EFFECTIVE DATE OF CHANGE Date of issue.
DISPOSITION OF SUPERSEDED PAGES
FORM P*7
r in
Hi
i. Jl^i
CERTAINTCED
description:
TECHNICAL SPECIFICATIONS
SPECIFICATIONS CLASSIFICATION:
CERTAIN-TEED PRODUCTS CORPORATION PIPE DIVISION
Standard Purchasing Specification
T.C.O. REF. NO.
SPECIFICATION NO:
u 5oi
PAGE NO.:
2
supersedes:
OATE OF ISSUE:
May l, 1968
September 11, 1969
Pulverized Silica
E. TEST METHODS
1. Chemical and Physical
The following tests will be conducted in accordance with the applica ble CAP Division Test Methods.
Test
Test Method
Free Moisture Content Loss on ignition Total silica (Si Og) Par cent available Si Og D Surface area Wet sieve analysis
TM - 30
TM - 31
TM - 25 TM - 25 TM - 3 TM - 2k
F. ACCEPTANCE AND REJECTION
CAP Division reserves the right to reject any lot of pulverized silica which does not conform to the requirements of this specification. If any lot is rejected,the supplier shall be advised within 2k hours and the reason for the rejection explained.
0. PACKAGING AND MARKING
Pulverized silica shall be supplied in bulk shipments by railroad car, truck or direct pipe line. Unless otherwise specified, each lot shall be marked as CPC 501 Silica and identified by the delivery date. All invoices shall include this information.
CTD012407
PREPARED BY:
APPROVEO by:
c O^JL
CONFIDENTIAL DOCUMENT
R&D
A
MFG.
M
SALES
I.E.
OTHERS
DISTRIBUTED TO UNAUTHORIZED PERSONNEL
TECHNICAL SPECIFICATIONS
SPECIFICATIONS CLASSIFICATION:
CertainTeed U
A/C Standard Purchasing Spec!ficat ion
T.C.O. REP. NO.
SPECIFICATION NO:
PAOE NO.:
CertainTeed Corporation Pipe and Plastics Group
oncKirriM:
8
SUPERSEDES:
Apri1
25 ,
1973
501
3
DATE OP ISSUE:
January 19, 198^
Pulverized Silica
TABLE A
Chemical Requirements - Type A and Type B
Ingredient or I tern
Max. %
Min. %
Free Moisture Content Loss on Ignition Total SiO2 Avai1ab1e SiO2
1 .0 1 .0
95.0 90.0
I tern
TABLE B Physical Requirements
Surface Area, Blaine sq. cm./gram a. 98 % SiO2 (Tota 1) b. 96 - 98% S i O2 (Total) c. 95 - 96* Si02 (Total)
Residue on U.S. Std. No. 220 Mesh Sieve, *, Max.
Residue on U.S. Std. No. 325 Mesh Sieve, *, Max.
Requirement
Type A
Type B
-- 3200 4
3300 300
--
3600 300
--
10.0
15-0
35.0
40.0
CTD012408
PREPARED at:
2m
02-1^-0023 4/0uc
APPROVED av:
R *D
MFO.
SALES
I.E.
O.C.
OTHERS
/yr (Xaw
Q4S
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