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ista-1a.pdf

ista-1a.pdf
ista-1a.pdf

OVERVIEW OF PROCEDURE 1A

Test Procedure 1A covers testing of individual packaged-products weighing 150 pounds (68kg) or less when prepared for shipment.

EXCEPTION:

Individual packaged-products on a visible skid or pallet and that weigh more than 100 pounds (45 kg) may be tested according to Test Procedure 1E.

The shipper shall determine the following prior to testing:

?What constitutes damage to the product and

?what damage tolerance level is allowable, if any, and

?the correct methodology to determine product condition at the conclusion of the test and

?the acceptable package condition at the conclusion of the test.

For additional information on this determination process refer to

Guidelines for Selecting and Using ISTA Procedures and Projects.

Samples should be the untested actual package and product, but if one or both are not available, the substitutes shall be as identical as possible to actual items.

Number of samples required:

?One sample is required for the tests in this procedure.

Replicate Testing Recommended:

To permit an adequate determination of representative performance of the packaged-product, ISTA:

?Requires the procedure to be performed one time, but

?Recommends performing the procedure five or more times using new samples with each test.

NOTE:

Packages that have already been subjected to the rigors of transportation cannot be assumed to represent standard conditions. In order to insure testing in perfect condition, products and packages shipped to certified laboratories for testing must be:

?over-packaged for shipment to the laboratory or

?repackaged in new packaging at the laboratory.

The tests shall be performed on each test sample in the sequence indicated in the following table:

Sequence # Test Category Test Type Test Level For ISTA Certification

1 Vibration Fixed Displacement 1 in. (25mm) peak to peak

at a freq. to be determined

Required

Drop Height varies with

packaged-product weight

Alternative Incline (Conbur) Impact Velocity varies with packaged-product weight

2 Shock

Alternative Horizontal

Impact Impact Velocity varies with

packaged-product weight

Required

EQUIPMENT REQUIRED FOR PROCEDURE 1A Fixed Displacement Vibration Test: ? Vibration Test System with a 1 inch (25 mm) fixed or controlled displacement complying with Method A1 or A2 of the apparatus section of ASTM D 999-01. Rotary or vertical linear motion of the platform is acceptable. Metal shim 0.06 inch (1.5 mm), thick approximately 2.0 inches (50 mm) wide and at a convenient length. Tachometer or suitable indicator for determining vibration frequency in cycles per second (Hz) or cycles per minute (CPM). Automatic timer or stopwatch.

The following alternatives are acceptable for the equipment required for the Shock Test:

BEFORE YOU BEGIN PROCEDURE 1A

You shall know the packaged-products:

?gross weight in pounds (kg), and

?outside dimensions of Length, Width and Height (L x W x H) in inches (mm or m)

CAUTION:

A restraining device or devices shall be used with the vibration test system to:

?Prevent the test specimen from moving off the platform and

?Maintain test orientation of the packaged-product, but

?The device or devices shall not restrict the vertical motion of the test specimen during the test.

Familiarity with the following formula is required to calculate the test duration after the frequency required to bounce the

packaged-product is determined in the Vibration Test Block:

14, 200 Vibratory Impacts

Test Duration in Minutes =

Cycles Per Minute (CPM) or [Cycles Per Second (Hz) x 60]

The chart below shows example Test Duration’s calculated for several frequencies:

CPM Hz Test Duration in Minutes

150 2.5 95

180 3.0 79

210 3.5 68

240 4.0 60

270 4.5 53

300 5.0 48

The test drop height varies with the weight of the packaged-product. Find the weight of the packaged-product in the

following chart to determine a drop height or an equivalent impact velocity to be used for a substituted drop:

Packaged-Product Weight Drop Height Impact Velocity

Equal to or greater than But Less than Free Fall Incline or Horizontal lb kg lb kg in. mm ft/s m/s

3.9

0 0 21 10 30 760

13

3.5

21 10 41 19 24 610 11

3.0

41 19 61 28 18 460 10

61 28 100 45 12 310 8.0

2.5

2.0

100 45 150 68 8 200 6.6

The test method requires the packaged-product to be dropped in several different package orientations.

A drop test must be performed in all required orientations where dropping the packaged-product is practical.

If dropping in a required orientation is not practical an equivalent incline or horizontal test can be substituted for that

orientation.

When using impact velocity, if any test in a Test Sequence is below the required minimum level, that sequence event

must be repeated until the test impact velocity meets the minimum.

TEST SEQUENCE FOR PROCEDURE 1A The test blocks that follow contain tables that indicate the required steps for each test in the procedure.

FIXED DISPLACEMENT

Step Action

1 Put the packaged-product on the vibration table so that face 3 rests on the platform.

2 Start the vibration system to vibrate at 1.0 inches (25 mm) total displacement at the machine’s lowest

frequency.

3 Maintain a fixed displacement at 1 inch (25 mm) and slowly increase the frequency (speed) of the

vibration table until the packaged-product begins to momentarily leave the surface of the platform.

4 Hold the vibration frequency to that determined in Step 3.

5 Can a metal shim be intermittently moved between the bottom of the longest dimension of the packaged-

product and the surface of the platform?

? If Yes , hold that frequency and then continue to next Step.

? If No , then increase the frequency until the requirement of Step 5 is met and hold that vibration

frequency.

6 Determine the test duration in minutes using the formula indicated in the Before You Begin Block and the

CPM or Hz frequency identified in Step 5.

7 Begin the vibration duration.

8 Are you using a vertical linear motion on the vibration system?

? If Yes , then go to Step 12.

? If No , then continue with the next Step.

Stop the vibration test half way through the vibration duration and perform the appropriate action as

indicated in the table below:

IF a single 90o horizontal rotation is… THEN perform a horizontal rotation of …

Possible 90o as the specimen rests on the platform.

9 Not practical because of the size of the packaged-product or the stability of the

packaged-product.

180o as the specimen rests on the platform.

10 Start the vibration system and continue the vibration test at the frequency used in Step 7.

11 Can a metal shim be intermittently moved between the bottom of the longest dimension of the packaged-

product and the surface of the platform?

? If Yes , then continue to next Step.

? If No , then slowly increase the frequency until the requirement of Step 11 is met.

12 Complete the vibration duration.

13 Inspection of the packaged-product for visible damage is allowed, provided inspection does not alter, in

any way, the current condition of the package or the condition or position of the product(s).

14 Vibration testing is now complete. Go to the Shock Test Block.

TEST SEQUENCE FOR PROCEDURE 1A DROP Step

Action

1 Determine the method(s) of test and the required drop height or impact velocity in the Before You Begin

Block.

2 Do you have a packaged-product with only 6 faces as identified in the Face, Edge and Corner Identification

Block?

? If Yes , continue with the next Step.

? If No , then go to Step 6.

3 Test the packaged-product according to the method(s) and level(s) determined in Step 1. Follow the

sequence in the table below.

Sequence # Orientation Specific face, edge or corner

1 Corner most fragile face-3 corner, if not known, test 2-3-5

2 Edge shortest edge radiating from the corner tested

3 Edge next longest edge radiating from the corner tested

4 Edge longest edge radiating from the corner tested

5 Face one of the smallest faces

6 Face opposite small face

7 Face one of the medium faces

8 Face opposite medium face

9 Face one of the largest faces

4 10 Face opposite large face

5 All testing is now complete. Go to the Test Report Block.

6 Select a bottom face corner to replace the corner required in Step 4 Sequence 1 to begin the test.

7 Identify the edges of the packaged-product that meet the Step 4 Sequence 2 through 4 requirements.

8 Select any 6 faces to replace the faces required in Step 4 Sequence 5 through 10.

9 Using the corner, edges and faces from Steps 6 through 8 go to Step 3 and proceed.

10 All testing is now complete. Go to the Test Report Block.

TEST REPORT FOR PROCEDURE 1A The packaged-product has satisfactorily passed the test if, upon examination, it meets the Product Damage Tolerance and Package Degradation Allowance. ISTA Certified Testing Laboratories: ? Should file a test report on all ISTA Test Procedures or Projects conducted. ? Shall file a test report on all ISTA Test Procedures or Projects conducted to obtain Transit Tested Package Certification or Acknowledgement. For additional information, refer to Guidelines for Selecting and Using ISTA Test Procedures and Projects . ISTA Transit Tested Program The ISTA Transit Tested Certification Mark as shown is a: ? registered certification mark and ? can only be used by license agreement and ? by a member of the International Safe Transit Association. When a member prints this certification mark on a packaged-product with their license number they are showing their customer and the carrier that it has passed the requirements of ISTA preshipment testing. In order to maintain its certified status and eligibility for identification with the TRANSIT TESTED Certification Mark, each packaged-product must be re-tested whenever a change is made in the: ? Product or ? Process or ? Package. Changes in the product include changes in: ? Design or ? Size or ? Materials. Changes in the process include changes in: ? Manufacturing or ? Assembly or ? Filling. Changes in the package include changes in: ? Configuration or ? Dimensions or ? Weight or ? Materials or ? Components. As a quality control procedure, packaged-products should be re-tested frequently, for example, yearly. This Test Procedure is published by: International Safe Transit Association 1400 Abbott Road, Suite 160, East Lansing, Mi 48823-1900 USA Copyright ? 2005 by International Safe Transit Association. All rights Reserved No part of the contents of this Test Procedure may be reproduced or transmitted in any form or by any means without the written permission of the publisher. Order Information: Additional copies of this Test Procedure, the ISTA RESOURCE BOOK (in print or on CD ROM) may be ordered online at https://www.wendangku.net/doc/f010406362.html, or by contacting ISTA at (+1) 517.333.3437.

TRANSIT TESTED The manufacturer certifies that this PACK AG ED-PRODUCT has passed preshipment testing requirements established by ISTA.MANUFACTURER’S LICENSE NUMBER: ? INTERNATIONAL SAFE TRANSIT ASSOCIATION

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