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ANSI Z37.16
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ANSI Z37.16 67th Edition, 1973 ACCEPTABLE CONCENTRATIONS OF FORMALDEHYDE
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Description / Abstract:
Scope and Purpose
The standard of acceptable concentrations of formaldehyde applies to all places of employment.
The purpose of this standard is to describe concentrations of form~ldehyde in the atmosphere of work places which are permissible with respect to safety from certain adverse biological effects within certain limitations of time. The standard is for guidance in establishing control procedures for the protection of the health, comfort, and well-being of workers.
Commercially and industrially formaldehyde is not often encountered in pure form. Formaldehyde is marketed chiefly as aqueous solutions containing about 36 to 50 percent by weight dissolved formaldehyde (HCHO) (11.· United States Pharmacopeia (USP) solution contains 37 percent formaldehyde and sufficient methanol (7 to 15 percent by weight) to prevent precipitation of polymer under storage and transport conditions) Industrial solutions may have as little as 1 percent methanol and up to 50 percent formaldehyde. Other commercial forms are the polymeric hydrate, paraformaldehyde [HO·(HCHO)n·OHI, and the cyclic polymer, trioxane (HCHO)3'
The major use of formaldehyde and its polymers is in the synthetic resin industry. Other uses are in the manufacture of textiles, paper, fertilizer, miscella'neous resinous products, and specialty chemicals. One of its uses, that in the permanent press garment industry, has resulted in notable human t!xposure to vapor inhalation.
This standard does not prescribe expos, ure limits for simultaneous exposure to methanol or other compounds.
The standard of acceptable concentrations of formaldehyde applies to all places of employment.
The purpose of this standard is to describe concentrations of form~ldehyde in the atmosphere of work places which are permissible with respect to safety from certain adverse biological effects within certain limitations of time. The standard is for guidance in establishing control procedures for the protection of the health, comfort, and well-being of workers.
Commercially and industrially formaldehyde is not often encountered in pure form. Formaldehyde is marketed chiefly as aqueous solutions containing about 36 to 50 percent by weight dissolved formaldehyde (HCHO) (11.· United States Pharmacopeia (USP) solution contains 37 percent formaldehyde and sufficient methanol (7 to 15 percent by weight) to prevent precipitation of polymer under storage and transport conditions) Industrial solutions may have as little as 1 percent methanol and up to 50 percent formaldehyde. Other commercial forms are the polymeric hydrate, paraformaldehyde [HO·(HCHO)n·OHI, and the cyclic polymer, trioxane (HCHO)3'
The major use of formaldehyde and its polymers is in the synthetic resin industry. Other uses are in the manufacture of textiles, paper, fertilizer, miscella'neous resinous products, and specialty chemicals. One of its uses, that in the permanent press garment industry, has resulted in notable human t!xposure to vapor inhalation.
This standard does not prescribe expos, ure limits for simultaneous exposure to methanol or other compounds.