Contrasts between different formaldehyde test standards of textiles and regression analysis of formaldehyde determination results

The contrasts between different formaldehyde test standards were studied,the influences of different formaldehyde test standards on formaldehyde determination results and the correlation between determination results were analyzed.It is showed that differences between GB(ISO) and JIS standard(phloroglucinol) in water extraction method are greater,and differences between GB(ISO) and JIS standard and in some aspects between GB(ISO) and AATCC standard in vapor absorption method are greater.The standards are arranged in descending order of formaldehyde determination results: AATCC standard for released formaldehyde,GB(ISO)standard for released formaldehyde,GB(ISO)standard for free and hydrolyzed formaldehyde,JIS standard for free and hydrolyzed formaldehyde.The linear regression of formaldehyde determination results of different test standards is highly significant and well fitted.