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|
Physical State |
:Free Flowing Powder |
|
Viscometer Dial reading at 600 r/min |
: Min 30 |
|
Yield Point/Plastic Viscosity Ratio |
: Max 3 |
|
Residue of diameter greater than 75um |
: Max mass friction 4,0% |
|
Filtrate Volume |
: Max 15.0 Cm3 |
|
Moisture |
: 10% wt percent max |

Various grade of Bentonite :::
Drilling Grade 1
API 13A Section – 9 Grade Bentonite Powder:
Physical Analysis:
|
PROPERTIES |
PROTOCOL |
UNIT |
REQUIRED |
RESULT |
|
Viscometer Dial Reading at 600 rpm |
API Spec. 13A:2004/ ISO 13500: 1998 |
r/min |
30 |
36 |
|
Yield Point / Plastic Viscosity Ratio |
API Spec. 13A:2004/ ISO 13500: 1998 |
_ |
3 Max |
2.5 |
|
Filterate Volume |
API Spec. 13A:2004/ ISO 13500: 1998 |
ML |
15 Max |
14.6 |
|
Moisture Content |
API Spec. 13A:2004/ ISO 13500: 1998 |
% by weight |
10.0 max. |
10 |
|
Dry Screen Analysis(Residue Greater than 75 Microns)% |
API Spec. 13A:2004/ ISO 13500: 1998 |
% by weight |
4.0 max. |
3.0 - 4.0 |
IOP Grade Bentonite lumps :
|
Properties |
Protocol |
Unit |
REQUIRED |
|
Moisture Content |
API Spec. 13A:2004/ ISO 13500: 1998 |
% by wt. |
12% to 40 % max. |
|
LOI |
IS:2000(P-1)-1985 |
% by wt. |
5 – 10. |
|
Free Swelling Volume 2gm/100ml |
ASTM D 5890:1995 |
ml |
32 min. |
|
PH Value of 5% gel |
IS:6186-1986 |
pH |
8.0 – 10.0 |
|
Plate Water Absorption (16 hours) |
ASTM E 946 |
% |
720- 760 |
|
Gel Time 2.5gm/25 ml |
IS:12446-1988 |
second |
Instant |
|
Methylene Blue Value |
API spe 131:2004/ ISO 10416:2002 |
mg/gm of clay |
350 - 400 |
|
Lumps size |
IS:6186-1986 |
% |
10 to 40 m.m. |
Chemical specification:
Alumina as AL2O3%>15.0-19.0
Calcium as Cao%1.5-2.0
Mgo 2.5-3.5