Section 2 — Documentation Requirements

Microfilming Contract Drawings

IPE Engineering Practice IPE-EP-2-2-1

Document number: IPE-EP-2-2-1 · Section: 2 — Documentation Requirements

SCOPE

The purpose of this Practice is to provide uniformity in contractor’s microfilms, microfilming, and mounting of films, and reproduction of same. Contractors shall conform to the Department of Defense Military Specifications MIL–M–9868C and MlL–C–9877B, Type I with the following modifications indicated in Section 4.0 of this Practice.
Any deviation to this Practice must be approved by the procedure described in EP 1–1–3.

2.0 REFERENCES

The latest edition of the following standards and publications are referred to herein.

STANDARDS AND PUBLICATIONS

IPE Practices
EP 1–1–3 Deviations to IPE Engineering Practices
Military Specification
MlL–M–9868C 35 MM Requirement for Microfilming of Engineering Documents MlL–C–9877B Aperture Cards

3.0 DEFINITIONS

Contractor - Company or business that agrees to furnish materials or perform specified services at a specified price and/or rate to the Owner.

4.0 DRAWING SIZES

Table 1 shall be used for determining the correct reduction ratios needed to produce drawings of differing sizes on the standard microfilm format.

5.0 DRAWINGS FOR MICROFILM

Microfilms of drawings shall, if at all possible, be made from the original tracings. The original drawings or material for microfilming shall be dark lined with dark characters on a light background. The drawings shall be of as uniform density as possible. Light rework over extensive erasures will not reproduce satisfactorily. Rework shall match density of original drawings. Care should be taken that details or characters do not appear within an inch of the match line between frames. Each section covered by a microfilm “frame” shall have the drawing number, revision and frame number on it.

6.0 MICROFILMING

Only one drawing or document shall be on each frame. (Exception: Computerized spool and detached bill of material which may be filmed two documents per frame). The “frame” is the total exposed area of microfilm, regardless of whether or not the area is filled by the document image.

35 MM APERTURE CARDS
Microfilms shall be mounted in aperture cards conforming to Department of Defense Military Specification MlL–C–9877B, Type I.
Roll film is not acceptable. Only one frame shall be mounted in each aperture card. Drawings requiring multiple frames shall have each frame mounted on a separate card.
The microfilms shall be right reading when mounted in the card; i.e., the front side of the aperture card has the film aperture on the right. When the film is mounted in the aperture, the characters on the image shall read correctly when viewing the front of the aperture card.
Each card shall be titled to show as a minimum the following information:
Job No.
Dwg. Size
Dwg.No.
Rev.
Frame No. of (Used when more than one frame is required for a drawing, i.e., flowsheets.)
Type of Issue
Title
Information shown must be typed in and verified.

8.0 TABLES

TABLE 1

REDUCTION RATIOS FOR DRAWINGS

Drawing Size (1)	Reduction Ratio
11 x 8–1/2	16X
11 x 17	16X
11 x 22	16X
22 x 34	24X
34 x 44	30X

NOTE:

Roll drawings exceeding 40 Inches in length shall be divided into frames to ensure proper microfilming.

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