A toy or component of a toy that can be totally enclosed in the small parts cylinder illustrated below — using a force of not more than 4.45 N (1 pound) — is an aspiration or an ingestion hazard:

Notes:

• – Not to scale

• – All dimensions in mm

• • 1 (1) For the purposes of paragraphs 25(c) and 29(c) of these Regulations, a substance is excessively toxic for humans in all of the following cases:

    • (a) its acute oral LD₅₀ value for rat is 5 g or less per kg of body weight;

    • (b) its acute dermal LD₅₀ value for rabbit is 2 g or less per kg of body weight; and

    • (c) its LC₅₀ value for a one-hour exposure, determined using rats, is 20,000 ppm by volume of gas or vapour or less, or 200 mg/L by volume of mist or dust or less, if gas, vapour, mist or dust is likely to be encountered when the substance is used in a reasonably foreseeable manner.

  • (2) LD₅₀ values are to be determined in conformity with good toxicological practice.

  • (3) The number of deaths during a 14-day period after dosage is to be used as the basis for calculation of the LD₅₀ value.

  • (4) A sufficient number of animals are to be used to give a statistically significant result. The result is to be calculated using methods based on good statistical practice.

  • (5) The methods referred to in the following publications, and other methods giving similar results, are acceptable:

    • (a) C.I. Bliss, “The determination of the dosage-mortality curve from small numbers”, Quarterly Journal of Pharmacy and Pharmacology, 1938, Volume 11, page 192; and

    • (b) J.T. Litchfield and W.F. Wilcoxon, “A simplified method of evaluating dose-effect experiments”, Journal of Pharmacology and Experimental Therapeutics, 1949, Volume 96, page 99.

Method for Determining Dermal LD₅₀ Value

• 2 The dermal LD₅₀ value is to be determined in the following manner:

  • (a) Prepare the animals by clipping the skin of the trunk free of hair. For approximately one half of the animals, make epidermal abrasions every 2 cm (0.8 inches) or 3 cm (1.2 inches) longitudinally over the area of exposure. Ensure that the abrasions are sufficiently deep to penetrate the stratum corneum (horny layer of the epidermis), but not so deep as to disturb the derma — that is, not to produce bleeding.

  • (b) In the acute exposures, hold the agent in contact with the skin by means of a sleeve for periods varying up to 24 hours. Use a sleeve made of rubber dam or other impervious material so that the sleeve has ends reinforced with additional strips and fits snugly around the trunk of the animal. Tuck the ends of the sleeve to permit the central portion to “balloon” and furnish a reservoir for the dose. Ensure that the reservoir has sufficient capacity to contain the dose without pressure. The dimensions of the sleeves and the approximate body surface exposed to the test substance are set out in the following table.

    Diameter at ends	Overall length	Range of weight of animals	Average area of exposure	Average percentage of total body surface
    7.0 cm (2.8 inches)	12.5 cm (4.9 inches)	2 500 g-3 500 g (5.5 pounds-7.7 pounds)	240 cm2 (37.2 inches2)	10.7

  • (c) Vary the size of the sleeves to accommodate smaller or larger subjects. Mesh wire screen may be used instead of the sleeve in the testing of unctuous materials that adhere readily to the skin. Pad and raise the screen approximately 2 cm (0.8 inches) from the exposed skin. In the case of dry powder preparations, moisten the skin and substance with physiological saline before exposure. Slip the sleeve or screen over the gauze which holds the dose applied to the skin. In the case of finely divided powders, distribute the measured dose evenly on cotton gauze and attach the gauze to the area of exposure.

  • (d) Slip the sleeve onto the animal. Place the animal in a comfortable but immobilized position in a multiple animal holder. Introduce selected doses of liquids and solutions under the sleeve. Collect and reapply any slight leakage from the sleeve which may occur during the first few hours of exposure. Adjust dosage levels in subsequent exposures, if necessary, to enable a calculation of a dose that would be fatal to 50% of the animals. This can be determined from mortality ratios that are obtained based on the various doses that are used. At the end of 24 hours, remove the sleeves or screens, measure the volume of any unabsorbed material and note the skin reactions. Clean the subjects by thorough wiping, observe them for gross symptoms of poisoning and then observe them for two weeks.

• 3 For the purposes of this Schedule, LD₅₀ means the dose that will kill 50% of test animals under the specified conditions of the test and LC₅₀ means the concentration of gas and vapour that will kill 50% of test animals under the specified conditions of the test.

• 1 For the purposes of paragraph 26(b) and 29(c) of these Regulations, a substance or mixture of substances is excessively irritant if it is excessively irritant to the eye or the skin, when judged on human experience or when based on the test method set out in this Schedule.

Method for Testing Eye Irritant Properties

• • 2 (1) Use six albino rabbits for each test substance. Ensure that animal facilities for such procedures are designed and maintained so as to exclude sawdust, wood chips or other extraneous materials that might produce eye irritation. Examine both eyes of each rabbit before testing. Use only those rabbits without eye defects or irritation. Hold the rabbit firmly but gently until quiet. Place the test substance in one eye of each rabbit by gently pulling the lower lid away from the eyeball to form a cup into which the test substance is dropped. Gently hold the lids together for one second and then release the rabbit. The other eye, remaining untreated, serves as a control. For testing liquids, use 0.1 mL (2 drops) of the test substance. For testing solids or pastes, use 100 mg (1.5 grains) of the substance. For substances in flake, granule, powder or other particulate form, use the amount that has a volume of 0.1 mL (2 drops) (after compacting as much as possible without crushing or altering the individual particles, such as by tapping the measuring container) whenever this volume weighs less than 100 mg (1.5 grains). In such a case, record the weight of the 0.1 mL (2 drops) test dose. Do not wash the eyes after instillation of the test substance except as noted in subsection (2).

  • (2) Examine the eyes and record the grade of ocular reaction at 24, 48 and 72 hours. Use a binocular loupe, hand-held slit-lamp or other expert means to facilitate observing the reactions. After recording the observations at 24 hours, the eyes may be further examined after fluorescein is applied. For this optional test, drop 0.05 mL (one drop) of fluorescein sodium ophthalmic solution U.S.P. or equivalent directly on the cornea. After flushing out the excess fluorescein with sodium chloride solution U.S.P. or equivalent, injured areas of the cornea appear yellow. This is best visualized in a darkened room under ultraviolet illumination. The eyes may be washed with sodium chloride solution U.S.P. or equivalent after the 24-hour recording.

  • (3) A rabbit is considered to exhibit an excessive reaction if, at any of the observations, the test substance has produced one or more of the following reactions:

    • (a) an ulceration of the cornea, other than a fine stippling;

    • (b) an opacity of the cornea, other than a slight dulling of the normal luster;

    • (c) an inflammation of the iris, other than a slight deepening of the folds (or rugae) or a slight circumcorneal injection of the blood vessels; or

    • (d) an obvious swelling in the conjunctivae (excluding the cornea and iris) with partial eversion of the lids or a diffuse crimson-red with individual vessels that are not easily discernible.

  • (4) The test is positive if four or more of the rabbits in the test group exhibit a positive reaction. If only one rabbit exhibits a positive reaction, the test is considered negative. If two or three rabbits exhibit a positive reaction, repeat the test using a different group of six rabbits. The second test is positive if three or more of the rabbits exhibit a positive reaction. If only one or two rabbits in the second test exhibit a positive reaction, repeat the test with a different group of six rabbits. If a third test is needed, the substance is excessively irritant if any rabbit exhibits a positive response.

  • (5) The publication Illustrated Guide for Grading Eye Irritation by Hazardous Substances is sold by the Superintendent of Documents, Government Printing Office, Washington, D.C., U.S.A. and may assist testing laboratories and other interested persons to interpret the results obtained when a substance is tested in accordance with subsection (1). The guide contains colour plates depicting responses of varying intensity to specific test substances. The grade of response and the substance used to produce the response are indicated.

Method for Testing Skin Irritant Properties

• • 3 (1) Measure primary irritation to the skin by a patch-test technique on the abraded and intact skin of an albino rabbit clipped free of hair. Use a minimum of six rabbits. Introduce the test substance — 0.5 mL (10 drops) in the case of liquids or 0.5 g (7-8 grains) in the case of solids or semisolids — under a square patch that is made up of two single layers of surgical gauze measuring 25 mm by 25 mm (1 inch by 1 inch). Dissolve solids in an appropriate solvent and apply the solution as in the case for liquids. Immobilize the rabbits and secure the patches in place with adhesive tape. Wrap the entire trunk of the rabbit with an impervious material such as rubberized cloth for the 24-hour period of exposure. This material aids in maintaining the test patches in position and retards the evaporation of volatile substances. After 24 hours of exposure, remove the patches and evaluate the resulting reactions on the basis of the designated values in the following table:

    Item	Evaluation of skin reactions	ValueFootnote for EVALUATION 1
    1	Erythema and eschar formation
    	(a) No erythema	0
    	(b) Very slight erythema (barely perceptible)	1
    	(c) Well-defined erythema	2
    	(d) Moderate to severe erythema	3
    	(e) Severe erythema (beet redness) to slight eschar formation (injuries in depth)	4
    2	Edema formation
    	(a) No edema	0
    	(b) Very slight edema (barely perceptible)	1
    	(c) Slight edema (edges of area well defined by definite raising)	2
    	(d) Moderate edema (raised approximately 1 mm (0.04 inch)	3
    	(e) Severe edema (raised more than 1 mm (0.04 inch) and extending beyond the area of exposure)	4

    • Return to footnote ¹The “value” recorded for each observation is the average value of the six or more rabbits subject to the test.

    Repeat the observations at the end of a total of 72 hours (48 hours after the first observation). Make an equal number of exposures on areas of skin that have been previously abraded. Ensure that the abrasions are minor incisions through the stratum corneum (horny layer of the epidermis), but not sufficiently deep so as to disturb the derma or to produce bleeding. Evaluate the reactions of the abraded skin at 24 hours and 72 hours, as set out in this subsection. Add the values for erythema and eschar formation at 24 hours and at 72 hours for intact skin to the values on abraded skin at 24 hours and at 72 hours (four values). Similarly, add the values for edema formation at 24 hours and at 72 hours for intact and abraded skin (four values). Divide the total of the eight values by four to give the primary irritation score. A score of five or more indicates that the substance is excessively irritant.

  • (2) For the purposes of paragraphs 26(b) and 29(c) of these Regulations, a substance is excessively corrosive if it causes visible destruction or irreversible changes in tissue at the site of the application.

• 4 For the purposes of paragraphs 26(b) and 29(c) of these Regulations, a substance is an excessively strong sensitizer if it causes an allergenic sensitization in a substantial number of persons who come into contact with it.

Required Equipment

• • 1 (1) A weight of 9 kg (20 pounds).

  • (2) A three-pronged claw hook (see Figure 1).

  • (3) A supporting disc with a circular hole that is 25.4 mm (1 inch) in diameter.

  • (4) A supporting disc with a circular hole that is 38.1 mm (1½ inches) in diameter.

Test Method

• • 2 (1) Attach the claw hook to the eye or nose.

  • (2) Support the disc in a horizontal position and pass the claw through the 25.4 mm (1 inch) diameter hole. If the opening provides insufficient clearance for the passage of the eye with the claw attached, or the nose with the claw attached, use the disc with the 38.1 mm (1½ inch) diameter hole.

  • (3) Attach the weight to the claw hook, gradually releasing the weight over a period of approximately 5 seconds and leaving it freely suspended for a period of 5 minutes, measured from the time of first applying the load.

  • (4) Repeat steps (1) to (3) for every eye or nose.

    

    (Dimensions are in inches: 1 inch = 25.4 mm)

Remove the covering from the doll, plush toy or soft toy and test it in accordance with the following method:

Scope

• 1 This method covers the evaluation of the flammability of outer coverings of dolls, soft toys, plush toys, and any other product for use by a child in play, that are covered with a flat or raised fibre textile material or natural fur, including dolls’ clothing. In this Schedule, the term “raised fibre surface” means a napped, pile, tufted, flocked or similar surface.

Procedure

• 2 Cut specimens from the outer covering and prepare them by brushing the raised fibre surface, by laundering if they have a flame-retarding finish, and by drying. Hold each dried specimen at a 45° angle in the specimen holder of the flammability tester. Apply a standardized flame to the surface of the specimen near the lower end for one second. Record the time that is required for flaming to proceed up the specimen over a distance of 127 mm (5 inches).

Required Materials

• • 3 (1) Flammability tester described in section 1 of Schedule 6.

  • (2) Brushing device described in section 2 of Schedule 6.

  • (3) Laboratory drying oven.

  • (4) Desiccator that is 250 mm (9.8 inches) in diameter.

  • (5) Calcium chloride, anhydrous.

  • (6) Butane, cp.

  • (7) A commercially available detergent.

  • (8) Mercerized cotton sewing thread No. 50.

Test Specimens

• • 4 (1) Select five test specimens, each measuring 51 mm by 152 mm (2 inches by 6 inches) from the part of the outer covering that burns most rapidly.

  • (2) When possible, in order to select the specimens that burn most rapidly, determine the direction in which to cut the specimens and the part of the outer covering from which to select the specimens. Do this by making preliminary trials, in accordance with the 45° angle test, with specimens cut in different directions and from different locations on the outer covering. Cut the test specimens in the chosen direction and from the chosen location on the outer covering. For textiles that have a raised fibre surface, the long dimension usually is in the direction of the lay of the surface fibres.

  • (3) Pieces may be removed and reassembled in the specimen holder in the same manner as in the original assembly, to the extent that the pieces are of such a size that they can be securely held in place by the specimen holder, if the outer covering is an assembly and a portion of the outer covering, including any seams, cannot be removed from the assembly in a size large enough to provide the required specimen.

  • (4) If the outer covering is known to have a flame-retarding finish or if preliminary testing indicates that such a finish may be present, ensure that it is laundered in accordance with section 5.

Laundering Procedure

• • 5 (1) Precondition outer covering samples that are known to have or that are suspected of having a flame-retarding finish applied to them by subjecting them to the washing and drying procedure described in this section.

  • (2) Prepare a bath solution that consists of water that has a hardness of not greater than 324 mg (5 grains) of calcium carbonate per 4.5 L (1.0 imperial gallons) in an amount 30 times the weight of the sample from which the specimens are to be taken and a commercially available detergent in an amount equal to 15% of this weight. Ensure that the temperature of the bath solution is from 35°C to 38°C inclusive (95°F to 100°F).

  • (3) Immerse the sample and allow it to soak for 3 minutes. Work it gently by hand for 2 minutes, squeezing the bath solution through the part of the sample to be tested.

  • (4) Rinse the sample three times in water that has a hardness of not greater than 324 mg (5 grains) of calcium carbonate per 4.5 L (1.0 imperial gallons) in an amount 30 times the weight of the sample. Ensure that the temperature of the rinse water is 27°C (80°F). Immerse and gently squeeze the sample in the first rinsing bath for 1 minute and in the second and third baths for 2 minutes each.

  • (5) Remove excess water from the sample after each bath by squeezing gently. After the final rinsing bath blot out as much moisture as possible using paper towels or cotton terrycloth.

  • (6) Lay the sample flat to dry at ambient temperature, namely, from 18°C to 24°C inclusive (65°F to 75°F).

Preparation of Specimens

• • 6 (1) Mark out five specimens, each 51 mm by 152 mm (2 inches by 6 inches), on the reverse side of the sample. Mark the longer dimension in the direction in which burning is most rapid, as established in the preliminary trials referred to in subsection 4(2). Identify the end of each specimen toward which flame spread is most rapid by attaching a staple to it. Cut the specimens from the outer covering.

  • (2) Brush each specimen that has a raised fibre surface once against the lay of the surface fibres with the brushing device illustrated in Figure 2 of Schedule 6. Specimens that do not have a raised fibre surface do not require brushing.

  • (3) Clamp each specimen individually in the specimen holders of the flammability tester illustrated in Figure 1 of Schedule 6. The stapled end is to be in the upper position during the test to ensure that the specimen is mounted in the direction in which burning is most rapid. Dry the mounted specimen in a horizontal position in an oven for 30 minutes at 105°C (221°F) or for 120 minutes at 75°C (167°F). Remove it from the oven and place it until cool in a desiccator over anhydrous calcium chloride for at least 15 minutes and not more than 2 hours.

Procedure

• • 7 (1) Adjust the position of the rack of the flammability tester with a holder and trial specimen (not a prepared specimen) so that the tip of the indicator touches the surface of the specimen.

  • (2) Open the control valve of the fuel supply and allow approximately 5 minutes for the air to be driven from the fuel line. Ignite the gas and, with the door closed as far as possible, adjust the flame to a length of 16 mm (5/8 inch) measured from its tip to the opening in the gas nozzle.

  • (3) Remove a mounted specimen from the desiccator and place it in position on the rack in the chamber of the flammability tester. Ensure that the flame impinges on the test specimen within 45 seconds after the time it is removed from the desiccator. String the stop cord (mercerized cotton sewing thread No. 50) through the guides in the upper plate of the specimen holder, across the top of the specimen, through the guides at the rear of the chamber and through the guide ring. Attach the weight to the cord close to and just below the guide ring.

  • (4) Close the door of the flammability tester. Set the stop watch to zero. Conduct the test in a draft-free room with the flammability tester at room temperature.

  • (5) Bring the starting lever over to the extreme right and release it. This starts the timing mechanism and applies the flame to the specimen for a period of one second. Timing is automatic, starting on the application of the flame and ending when the weight is released by the burning of the stop cord.

  • (6) Record the flame spread time for each specimen.

Interpretation of Results

• • 8 (1) A specimen that exhibits either base burning or surface burning of sufficient intensity to sever the stop cord in 7 seconds or less is considered to have failed the test.

  • (2) Test five additional specimens if one of the five specimens fail. If two out of 10 specimens fail, the doll, plush toy or soft toy does not meet the test requirement.

Flammability Tester

• • 1 (1) The flammability tester illustrated in Figure 1 consists of a draft-proof ventilated metal combustion chamber that encloses a standardized ignition medium, a specimen rack and an automatic timing device.

  • (2) The combustion chamber prevents air circulation around the specimen rack and flame, but permits free ventilation for rapid combustion. The chamber is 368 mm (14½ inches) wide by 216 mm (8½ inches) deep by 356 mm (14 inches) high. There are 12 holes that measure 12.7 mm (½ inch) equidistant along the rear of the top closure. A ventilating strip is provided at the base of the sliding glass door in the front of the chamber.

  • (3) The specimen rack provides support for the frames in which the specimens are mounted. The angle of inclination of the specimen rack is 45°. Two guide pins that project downward from the centre of the base of the rack are positioned into slots that are located in the floor of the combustion chamber. This allows for the adjustment of the specimen in relation to its thickness and the flame front. The specimen rack has an indicating finger with a fore part that touches the specimen when the rack is correctly adjusted.

  • (4) The specimen holder consists of two 1.6 mm (1/16 inch) matched metal plates with clamps mounted along the sides of the plates. The specimen is fixed between the plates. The plates are slotted and loosely pinned for alignment. The two plates of the specimen holder cover the full length of the specimen but do not cover 38.1 mm (1½ inches) of its width. The specimen holder is supported in the combustion chamber on the rack at a 45° angle. Five specimen holders are provided.

  • (5) Two control knobs hold the rack in test position. The knobs can be reached under the stage of the cabinet and permit, when loosened, forward and backward movements of the rack.

  • (6) The ignition medium consists of a spring-motor driven gas jet formed around a 26-gauge hypodermic needle. A trigger located in the front of the flammability tester serves to wind the spring-motor when the flammability tester is ready for operation. The gas jet is protected by a copper shield.

  • (7) The stop cord is stretched from the spool through suitable thread guides provided on the specimen holder and chamber walls. This allows the cord to be laced in the proper position, exactly 127 mm (5 inches) from the point where the centre of the ignition flame impinges on the test specimen. Use a mercerized sewing thread No. 50 for the stop cord.

  • (8) A weight that is attached by means of a clip to the stop cord actuates the stop motion when it is dropped.

  • (9) The glass door slides in grooves at the front of the cabinet. A knob moves the catch mechanism used to hold the sliding door in an open position for insertion of the test specimen holders.

  • (10) A sensitive fuel control valve regulates the fuel supply at the tank. The valve ends in a ½-inch male connection for attachment to a standard No. 4 butane cylinder of 0.91 kg (2 pounds) capacity.

  • (11) The flow meter consists of a U-shaped glass tube that is installed into the gas line to register the gas pressure delivered to the microburner. A movable metal plate with two parallel horizontal lines properly spaced to indicate the desired gas pressure is attached to the case wall behind the flow metre. When the pressure is off, the plate is regulated so that the liquid level in both sides of the U-shaped tube meets the lower line. When the flammability tester is in operation, the pressure is adjusted so that the higher liquid level in the U-shaped tube meets the upper line.

  • (12) The starting lever is operated from left to right in one stroke and is released to operate the gas jet. A driving mechanism on the rear of the cabinet moves the gas jet to its most forward position. The mechanism automatically starts the stop watch by means of special attachments at the moment of flame impact. When the cord is cut, the weight drops on a platform and stops the watch. Timing is read directly.

Brushing Device

• • 2 (1) The brushing device illustrated in Figure 2 consists of a baseboard over which a small carriage is drawn on parallel tracks that are attached to the edges of the upper surface of the baseboard. The brush is hinged with pin hinges at the rear edge of the baseboard and rests vertically on the carriage with a pressure of 150 g (1/3 pound).

  • (2) The brush consists of two rows of stiff nylon bristles mounted with the tufts in a staggered position. The bristles are 0.41 mm (0.016 inch) in diameter and 19 mm (0.75 inch) in length. There are 20 bristles per tuft and four tufts per 25 mm (1 inch). A clamp is attached to the forward edge of the carriage to permit the specimen to be held on the carriage during the brushing operation.

  • (3) After the specimen has been put in place on the carriage and fastened by means of the clamp, raise the brush, push the carriage to the rear and lower the brush to the surface of the specimen. Then draw the carriage forward by hand at a constant speed.

Modified Specimen Holder

• 3 The modified specimen holder consists of the holder described in subsection 1(4) with the addition of 38-gauge (B & S) spring steel wire securely attached across its width at 1.27 cm (½ inch) intervals. This arrangement allows the calibrated flame to impinge at a point midway between the two lowest wires.

(Photograph courtesy of United States Testing Company, Inc., Hoboken, N.J., U.S.A.) / (Photo : United States Testing Company, Inc., Hoboken (N.J.), États-Unis d’Amérique)

(Photograph courtesy of United States Testing Company, Inc., Hoboken, N.J., U.S.A.) / (Photo : United States Testing Company, Inc., Hoboken (N.J.), États-Unis d’Amérique)

Scope

• 1 This method covers the evaluation of the flammability of dolls, plush toys and soft toys that have at least one of the following characteristics:

  • (a) they have exposed surfaces that consist of spun staple yarn or bulked continuous filament yarn; or

  • (b) they are constructed, in whole or in part, of parallel bundles of spun staple yarn or bulked continuous filament yarn that are exposed.

Procedure

• 2 Prepare specimens that are cut from a doll, plush toy or soft toy by laundering (if they have a flame-retarding finish) and by drying. Hold the dried specimen at a 45° angle in the specimen holder of the flammability tester. Apply a standardized flame to the lower end for one second, and record the time that is required for flaming to proceed up the specimen over a distance of 127 mm (5 inches).

Required Materials

• • 3 (1) Flammability tester described in section 1 of Schedule 6.

  • (2) Brushing device described in section 2 of Schedule 6.

  • (3) Modified specimen holder described in section 3 of Schedule 6.

  • (4) Laboratory drying oven.

  • (5) Desiccator that is 250 mm (9.8 inches) in diameter.

  • (6) Calcium chloride, anhydrous.

  • (7) Butane, cp.

  • (8) Commercially available detergent.

  • (9) Mercerized cotton sewing thread No. 50.

Test Specimens

• • 4 (1) Ensure that the yarn is laundered in accordance with section 5 if it is known to have a flame-retarding finish or if preliminary testing indicates that such a finish may be present.

  • (2) Select from the part of the outer covering that burns most rapidly specimens of the yarn that each measure 152 mm (6 inches) in length.

Laundering Procedure

• • 5 (1) Precondition outer covering samples that are known to have, or that are suspected of having, a flame-retarding finish applied to them by subjecting them to the washing and drying procedure described in this section.

  • (2) Prepare a bath solution that consists of water that has a hardness of not greater than 324 mg (5 grains) of calcium carbonate per 4.5 L (1.0 imperial gallons) in an amount 30 times the weight of the sample and a commercially available detergent in an amount equal to 15% of this weight. Ensure that the temperature of the bath solution is from 35°C to 38°C inclusive (95°F to 100°F).

  • (3) Immerse the sample and allow it to soak for 3 minutes. Work the sample gently by hand for 2 minutes, squeezing the bath solution through the part of the sample to be tested.

  • (4) Rinse the sample three times in water that has a hardness not greater than 324 mg (5 grains) of calcium carbonate per 4.5 L (1.0 imperial gallons) in an amount 30 times the weight of the sample. Ensure that the temperature of the rinse water is 27°C (80°F). Immerse and gently squeeze the sample in the first rinsing bath for 1 minute and in the second and third baths for 2 minutes each.

  • (5) Remove excess water from the sample after each bath by squeezing gently. After the final rinsing bath blot out as much moisture as possible using paper towels or cotton terrycloth.

  • (6) Lay the sample flat to dry at ambient temperature, namely, from 18°C to 24°C inclusive (65°F to 75°F).

Preparation of Specimens

• 6 Place specimens side by side, without overlapping, and clamp sufficient 152 mm (6 inch) lengths of the yarn in the modified specimen holder to form a 25 mm (1 inch) wide specimen in the centre of the holder. The loose ends may be tucked under the bottom wire to hold them in place. Prepare five test specimens. Dry the mounted test specimens in an oven for 30 minutes at 105°C (221°F) or for 120 minutes at 75°C (167°F). Remove them from the oven and place them until cool in a desiccator over anhydrous calcium chloride for at least 15 minutes and not more than 2 hours.

Procedure

• • 7 (1) Open the control valve of the fuel supply and allow approximately 5 minutes for the air to be driven from the fuel line. Ignite the gas and, with the door closed as far as possible, adjust the flame to a length of 16 mm (5/8 inch) measured from its tip to the opening in the gas nozzle.

  • (2) Remove a specimen from the desiccator and trim the lower ends to the length that will ensure that the ignition flame will contact the end of the yarn.

  • (3) Test the specimen within 45 seconds after the time it is removed from the desiccator. String the stop cord (mercerized cotton sewing thread No. 50) through the guides in the upper plate of the specimen holder, across the top of the specimen, through the guides at the rear of the chamber and through the guide ring. Attach the weight to the cord close to and just below the guide ring.

  • (4) Close the door of the flammability tester. Set the stop watch to zero. Conduct the test in a draft-free room with the flammability tester at room temperature.

  • (5) Bring the starting lever over to the extreme right and release it. This starts the timing mechanism and applies the flame to the specimen for a period of one second. Timing is automatic, starting on application of the flame and ending when the weight is released by the burning of the stop cord.

  • (6) Record the flame spread time for each specimen.

Interpretation of Results

• • 8 (1) A specimen that exhibits burning of sufficient intensity to sever the stop cord in 7 seconds or less is considered to have failed the test.

  • (2) Test five additional specimens if one of the five fails. If two out of 10 specimens fail, the doll, plush toy or soft toy does not meet the test requirements.

Instructions

• 1 Place the template illustrated above on a horizontal surface.

• 2 Under its own weight, apply the rattle or component of the rattle that is being tested to the opening in the template.

Vibration Test

• 1 The test equipment is described in the standard entitled Standard Method of Vibration Test for Shipping Containers, ASTM D 999-68, published on June 18, 1968 by the American Society for Testing and Materials.

Step 1

• • 2 (1) Place the battery on the table of the vibration tester in a normal vertical position. If required, install fences to prevent excessive rocking or moving on the table.

  Step 2

  • (2) Set the vibration frequency at the minimum speed sufficient to cause the battery to leave the table momentarily so that the shim may be inserted at least 102 mm (4 inches) between the bottom of the battery and the surface of the table. Ensure that the piece of metal is capable of being intermittently moved along one entire edge of the longest dimension of the battery.

  Step 3

  • (3) Vibrate the battery for 10 minutes. Rotate the battery so that another of its surfaces is in contact with the table. Vibrate for 10 minutes. Repeat for all battery surfaces.

  Step 4

  • (4) Inspect the exterior of the battery for visible damage. Check for the presence of acid on the battery surface.

Drop Test

• 3 The drop test applies to batteries that weigh less than 23 kg (50 pounds).

• 4 The test equipment is described in the standard entitled Standard Method of Drop Test for Shipping Containers, ASTM D 775-61, published in 1961 by the American Society for Testing and Materials, or in the standard entitled Drop Test for Fibreboard Shipping Containers, No. T. 802m-44, published by the Technical Association of the Pulp and Paper Industry, United States of America, in 1944.

Step 1

• • 5 (1) Place the battery in its normal position, face one end of the container and identify the surfaces as follows:

    • (a) top as 1;

    • (b) right side as 2;

    • (c) bottom as 3;

    • (d) left side as 4;

    • (e) near end as 5; and

    • (f) far end as 6.

  Step 2

  • (2) Identify the edges by the numbers of the two surfaces that form that edge. For example, the edge formed by the top and right side is identified as 1-2.

  Step 3

  • (3) Identify the corners by the numbers of the three surfaces that meet to form that corner. For example, the corner formed by the right side, bottom and near end is identified as 2-3-5.

  Step 4

  • (4) Drop the battery from a height of 457 mm (18 inches) in the following sequence:

    • (a) the 2-3-5 corner;

    • (b) the shortest edge radiating from that corner;

    • (c) the next longest edge radiating from that corner;

    • (d) the longest edge radiating from that corner;

    • (e) flat on one of the smallest faces;

    • (f) flat on the opposite small face;

    • (g) flat on one of the medium faces;

    • (h) flat on the opposite medium face;

    • (i) flat on one of the largest faces;

    • (j) flat on the opposite large face.

  Step 5

  • (5) Inspect the exterior of the battery for visible damage. Check for the presence of acid on the battery surface.