Can a Consolidated Tool Kit have separate buyer and factory checklists?

Answer: No. Two lists disagree on limits and neither verdict holds. Merge them, mark each limit's source and sign both.

Can sampling drop items after the first article?

Answer: Class A never drops. B and C may drop after three clean lots, in writing; a failure restores the list.

Is a pressure test needed once immersion passes?

Answer: Only for long storage or air transport. The two tests cannot replace each other.

Answer: Within a lot, yes. Between lots it may widen to ΔE 3.0 if the contract says so, never on the floor.

What happens to a lot that fails twice?

Answer: It is rejected whole. Units may be downgraded but cannot carry the original model plate.

Consolidated Tool Kit Acceptance: Test Items and Verdicts

Quick answer: Accepting a Consolidated Tool Kit rests on a frozen item list split into three classes, each item carrying a method and a numeric limit. Lots are judged by one GB/T 2828.1 sample: three major defects in 80 pieces fail the lot, one critical defect rejects it outright.

Consolidated Tool Kit Test Items by Class
Dimensions and Appearance Checks
Seal, Latch and Handle Tests
Limits and Defect Classes
Sampling and Acceptance Rules
FAQ

1. Consolidated Tool Kit Test Items by Class

The item list for a Consolidated Tool Kit is frozen at sampling; rewriting it later renegotiates the standard every lot. Class A covers protection, B structure, C appearance. A first article runs all 12 items.

Each item needs four fields: item, method, limit, record; meets requirement alone is not a standard.

Item	Class	Method	Record
Joint seal	A	Immersion, 1 m, 30 minutes	Trace, photo
Drop	A	1.2 m, six faces, three edges	Crack length
Handle load	A	350 N, 10 minutes	Residual set
Outer size	B	Caliper, three points	Value
Wall thickness	B	Ultrasonic, five points	Minimum

One class A failure blocks the lot; B may be reworked, C conceded in writing.

2. Dimensions and Appearance Checks

Length and width are read at both ends and the midpoint, height at four corners, to 0.1 mm. Limits are ±2.0 mm on length and width, ±1.5 mm on height, 3 mm on diagonal difference, 0.8 mm on joint gap and 1.2 mm on flatness. Wall thickness is read at five points against 3.0 mm nominal, and anything under 2.8 mm is a class B failure.

Consolidated Tool Kit: black closed case on a grey background, moulded handle raised, two latches and a cross rib on the front wall

Appearance is judged under D65 light at 500 mm: ΔE under 2.0 against the batch master, sink marks 0.3 mm, flash 0.5 mm, no glass fibre at trimmed gates. Calipers at 0.02 mm are calibrated quarterly.

3. Seal, Latch and Handle Tests

Immersion is the seal test for a Consolidated Tool Kit: close it, sink to 1 m for 30 minutes, dry it and press paper on the inner wall. Any water trace fails it, and the test loads gasket and latch clamp together.

Drop testing runs at 1.2 m on six faces, three edges and one corner, then checks cracks, latch release and liner shift; a crack over 5 mm is a class A failure.

Test	Condition	Limit
Immersion	1 m, 30 minutes	No water trace
Drop	1.2 m, faces, edges, corner	Crack under 5 mm
Handle load	350 N, 10 minutes	Set under 1.5 mm
Latch cycles	3,000	No self-release
Salt spray	48 hours	Grade 9 or better

A handle takes 350 N for 10 minutes, set under 1.5 mm, no boss whitening. Latches survive 3,000 cycles; salt spray runs 48 hours to grade 9.

4. Limits and Defect Classes

Limits carry numbers, never adjectives. Even and uniform cannot be reproduced, while 1.2 mm flatness and ΔE 2.0 can. Each limit also names its measuring position, since corner and midpoint walls differ by 0.3 mm on one case.

Consolidated Tool Kit: orange case floating above a dark floor lit from below, lid ribs and two front latches visible, handle recessed into the lid

Critical defects mean lost protection or a crack and allow no concession; major ones cover size and latch force and may be reworked; minor ones are cosmetic. Borderline readings go against the supplier: 2.79 mm is recorded below 2.8 mm, not rounded up.

5. Sampling and Acceptance Rules

Sampling follows GB/T 2828.1 at level II, normal, single sampling. A lot of 501 to 1,200 maps to code J, 80 pieces, with limits of 0 critical, 1.0 major, 2.5 minor.

At 80 pieces, two major defects pass and three fail, five minor pass and six fail, and one critical defect rejects the lot.

Lot size	Code	Sample	Major Ac/Re	Minor Ac/Re
151 to 280	G	32	1/2	3/4
281 to 500	H	50	1/2	5/6
501 to 1,200	J	80	2/3	5/6
1,201 to 3,200	K	125	3/4	7/8

A failed lot may be screened 100 percent and resubmitted once under tightened inspection; a second failure rejects it. Records last three years.

Conclusion

Accepting a Consolidated Tool Kit stands on an item list that separates classes, limits written only as numbers, and sampling fixed in advance. With limits in the contract and records kept, a Consolidated Tool Kit is accepted the same way by every inspector.

This article discusses only the container (case body) side of specifications and design intent, and does not cover any handling, loading or use of the contents.