Interpretation of Industry Standards for Three Hindered Amine Light Stabilizers
Hindered amine light stabilizers have a wide range of uses and strong market demand.Light stabilizers 622,770,and 944 were the three most industrialized and widely used hindered amine light stabilizers in the market,and their industry standards were released in September 2022 and implemented in April 2023.This article focused on comparing and interpreting the physical and chemical performance indicators in the three standards,such as product appearance,heating reduction,ash content,melting point,transmittance,purity,etc.The formulation of three industry standards plays a positive role in ensuring product quality,guiding orderly competition and healthy development in the industry.
light stabilizerindustry standardphysical and chemical propertiestechnical requirements
NETL
NSTL
万方数据
