S. No |
Product |
Test Performed |
Checking Parameter |
Method of Checking
|
Sample Size |
Frequency |
IMTE Used |
Acceptance Criteria |
1. |
Pipe Fittings |
Physical Verification |
Dimensions |
Manual |
8 pcs / item |
Each Lot |
Vernier Calliper |
As per SS . QFM
/ QC / 01 |
Wall thickness |
Manual |
8 pcs / item |
-do- |
P– type Caliper |
As per SS . QFM
/ QC / 01 |
Cracks |
Visual |
13 pcs / item |
-do- |
-------- |
No cracks as per IS :
1879 – 1987 |
Unfilled |
Visual |
-do- |
-do- |
-------- |
No unfilled as per IS
: 1879 – 1987 |
Deep pits |
Visual |
-do- |
-do- |
-------- |
No deep pits as
per IS : 1879 – 1987 |
Shifting |
Visual |
-do- |
-do- |
-------- |
No shifting as per IS
: 1879 – 1987 |
Deposits |
Visual |
-do- |
-do- |
-------- |
No deposits as per IS
: 1879 – 1987 |
Zinc Coatings |
Surface smoothness |
Visual |
-do- |
-do- |
---------- |
Smooth surfaceas as IS
: 1879 – 1987 |
Flux ash |
Visual |
-do- |
-do- |
---------- |
No flux ash as per IS : 1879
– 1987 |
Bare patches |
Visual |
-do- |
-do- |
---------- |
No bare patches as per IS :
1879 -1987 |
Pimples |
Visual |
-do- |
-do- |
---------- |
No pimples as per IS : 1879
– 1987 |
Lumps |
Visual |
-do- |
-do- |
---------- |
No lumps as per IS : 1879 –
1987 |
Rust strains |
Visual |
-do- |
-do- |
---------- |
No rust strains
as IS : 1879 – 1987 |
Excess / less deposits |
Visual |
-do- |
-do- |
---------- |
No excess/less deposits IS :
1879 – 1987 |
Alignment Test |
Straightness / 90° |
Manual |
8 pcs / item |
-do- |
Jigs |
180°± ½°, 90°± ½°
IS : 1879 – 1987 |
Chamfering |
External / Internal threads |
Visual |
-do- |
-do- |
---------- |
No item without
chamfer |
Threading |
Gauge |
|
-do- |
-do- |
Thread Guage |
± 1¼ thread as
per IS: 8999 - 1979 |
Chemical Test |
Carbon content |
Manual |
2 pcs/item |
-do- |
|
No shifting as per IS
: 1879 – 1987 |
Silicon content |
Manual |
2 pcs/item |
-do- |
|
No shifting as per IS
: 1879 – 1987 |
Pneumatic Test |
Air–leakage |
Manual |
Whole Lot |
-do- |
|
At 15 bar pressure no
leakage of air bubbles when dipped inside water |
Remarks :- 1. All
dimensions are in mm. unless otherwise
specified.
2. Calibrated instruments are used for inspection.
3. 100% pneumatic test is performed for gas
fittings only. |